Koganei FRZ Series User manual

Catalog No. BK-E0010
New-generation Filter Regulator
NPT thread specifications
All products are
RoHS compliant
Series
Flexible installation
Water removal function eliminated for more flexible installation
Improved operability
Improved knob operability and simple bowl installation and removal
Water
removal
f
u
n
Fl
e
x
ib
l
e
Water removal f
u

❶
Improved knob operability and simple bowl installation and removal.
Improved operability and maintainability
Supports
□
1.181 in. integrated pressure gauges, other pressure gauges,
and pressure switches.
Pressure gauge, pressure switch
Specialized 30 series for
standalone application
Regulator
RZ30 FRZ30
Filter regulator
RZ40
Regulator
FRZ50
Filter regulator
RZ50
Regulator
FRZ40
Filter regulator
The 40 and 50 series can be used in combinations
Water removal function is eliminated for more flexible installation.
Flexible installation
Ozone resistance specifications and NCU specifications (copper free)
Note
are
standard.
Note: Excluding pressure switch and pressure gauge options.
Supports a wide variety of environments
Improved flow rate characteristics allow a smaller configuration
(close side-by-side spacing is possible).
Down sizing
New-generation Filter Regulator
Series
Excellent for air lines with water and fluids already removed.
1.378 1.575 1.969

❷
CAUTION
Read the safety precautions on page
❹ before using this product.
The setting pressure range display can be changed as desired
by rotating the protrusions (two locations) clockwise or counter
clockwise.
270°swing angle
Filter regulator
FRZ40
2.992
Regulator RZ50
Regulator R600
(existing product)
4.882
1.260
1.969
4.193
1.142
0psi 145
120
90
60
30
Compact design
Improved knob operability □
1.181 in. series integrated pressure gauge
Improved maintainability
More flexible installation
Improved flow rate characteristics enable a smaller configura-
tion.
●The knob is sized and shaped to turn smoothly with a light
touch for easy operation. Also, the knob lock precision has
been improved to reduce changes in pressure settings
when the knob is locked.
●The status of the lock release can be checked with the yellow
caution ring.
●Flexible change of the pressure setting range (the green
part) is possible. Freely changeable upper and lower set-
ting limits eliminate the need to remove the front cover (the
transparent plastic part) and to use special tools.
*Other pressure gauges and pressure switches are available.
See the next page for details.
●
□1.181 in. integrated pressure gauge is compact with
almost nothing sticking out. Visibility is also improved with
an easy to see 270° swing angle display.
●The bowl can be removed and attached in two easy steps.
The filter element can be replaced easily even in small nar-
row spaces.
●The filter element is a non-woven-fabric. Improved porosity
and enlarged circumference area extend its operating life.
Water and impurity removal functions have been eliminated for
more flexible installation. Bowl can be mounted on the top or the
sides.
Element Bowl
*Compared to the R600 and RZ50 Koganei Regulator.
Filter bowl section
Pressure setting range
Protrusions (two locations)
Pressure setting range after change
Yellow caution ring
Shows the state of the
knob lock
Knob
Knob can be removed by
using the mounting ring.
This is effective when you
do not want the knob to be
operated.
Mounting ring

Pressure gauge, pressure switch
Residual pressure exhaust valve
Module adapter
Bracket
Panel mounting
Can select various types of pressure gauges and pressure
switches other than the
□
1.181 in. integrated pressure gauge.
φ1.575 in. pressure gauge
(145 psi specification)
Order code G1-40-F11
G1S-40-F11
F module
(for connections)
D module
(for connections, with bracket)
Note: Cannot be installed with the 30 series body size.
Digital pressure switch
GS620-3W
(145 psi specifications)
Pressure gauge with
built-in switches
(145 psi specification)
φ1.575 in. stainless steel
Bourdon tube pressure gauge
(145 psi specification)
φ1.575 in. stainless steel
Bourdon tube pressure gauge
(43.5 psi specification)
φ1.575 in. pressure gauge
(43.5 psi specification)
G3-40-F11
G3S-40-F11
GS1-50-F11-□-□
The pressure in the air line can be exhausted through a 3-port
valve. Better safety through a lock mechanism (with a lock hole)
while exhausting residual pressure. Also, an easy to see red
color is used for better visibility of the operating Knob.
These devices are used to connect devices for the 40 series
and 50 series body sizes.
The brackets can be used with all size filter regulators and
regulators.
A φ1.122 in. panel mounting hole can be used for all sizes of
the filter regulators and regulators.
Note: Cannot be installed with the 30 series body size.
❸
Air being supplied Air being exhausted
Lock hole
Pressure switch module
Note: Cannot be installed with the 30 series body size.
The pressure in the air line is easy to detect with the connect-
ing bracket and integrated compact pressure switch. The set
pressure can be adjusted from the front.
T module
(for branches)
S adapter
(for changing pipe size)
Module bracket
(for module adapters)
DT module
(for branches, with bracket)
DS adapter
(for changing pipe size, with bracket)
Coupling plate
(replacement parts)

Safety precautions (FRZ series) Always read these precautions carefully before use.
❹
Before selecting and using the products, please read all safety precautions carefully to ensure proper product use.
The safety precautions described below are to help you use the product safely and correctly, and to prevent injury or damage to you,
other people, and assets..
Always adhere to the following safety regulations: ISO4414 (Pneumatic fluid power - General rules and safety requirements for systems
and their components) and JIS B 8370 (General rules relating to pneumatic systems).
■This product was designed and manufactured for use in general industrial machinery.
■When selecting and handling equipment, the system designer or another person with sufficient knowledge and experience should
always read the safety precautions, catalog, instruction manual and other literature before commencing operation. Improper handling
is dangerous.
■After reading the instruction manual, catalog, and other documentation, always store them in a location that allows easy availability
for reference to users of this product.
■Whenever transferring or lending the product to another person, always attach the catalog, instruction manual, and other information
to the product where they are easily visible in order to ensure that the new user can use the product safely and properly.
■The danger, warning and caution items listed under these safety precautions do not cover all possible contingencies. Read the
catalog and instruction manual carefully, and always keep safety first.
Indicates situations that can be clearly predicted as dangerous.
Failure to avoid the situation creates the risk of death or serious injury.
It could also result in damage or destruction of assets.
Indicates situations that, while not immediately dangerous, could become dangerous.
Failure to avoid the situation creates the risk of death or serious injury.
It could also result in damage or destruction of assets.
Indicates situations that, while not immediately dangerous, could become dangerous.
Failure to avoid the situation creates the risk of minor or semi-serious injury.
It could also result in damage or destruction of assets.
While there is little chance of injury, this content refers to points that should be observed for
appropriate use of the product.
The directions are ranked according to degree of potential danger or damage: "DANGER", "WARNING", "CAUTION", and "ATTENTION".
DANGER
WARNING
CAUTION
ATTENTION
DANGER
●Do not use the product for the purposes listed below:
1. Medical equipment related to maintenance or management
of human lives or bodies.
2. Machines or equipment designed for the purpose of moving
or transporting people.
3. Critical safety components in mechanical devices.
This product has not been planned or designed for purposes
that require high levels of safety. Using the product in any of
the ways described above creates the risk of loss of human
life.
●Do not use the product in locations with or near dangerous
substances such as flammable or ignitable substances. This
product is not explosion-proof. Doing so creates the risk of
ignition and fire.
●When mounting the product and workpiece, always make sure
they are firmly supported and secured in place. Falling,
dropping, or abnormal operation of the product creates the
risk of personal injury.
●People using a pacemaker or other similar medical devices
should keep a distance of at least 3.28 ft away from the
product. There is a strong magnet inside the product and the
magnetic field of this magnet may cause a pacemaker to
malfunction.
●Never attempt to modify the product. Doing so can cause
malfunctions and create the risk of personal injury, electric
shock, fire, etc.
●Never attempt inappropriate disassembly, assembly or repair
of the product relating to basic construction, or to its
performance or to functions. Doing so creates the risk of
injury, electric shock, fire, etc.
●Do not splash water on the product. Spraying it with water,
washing it, or using it under water could result in malfunction
of the product leading to injury, electric shocks, fire, etc.
●While the product is in operation, avoid touching it with your
hands or otherwise approaching too close. Also, do not
attempt to make any adjustments to internal or attached
mechanisms, or to perform any type of adjustment
(disconnecting cable connectors, adjusting pressure switches,
disconnecting tubes or sealed plugs, adjusting the product's
mounting position, etc.) while the product is in operation.
Falling, dropping, or abnormal operation of the product
creates the risk of personal injury.
WARNING
●Because Koganei products are designed for use under a wide
variety of conditions, decisions concerning conformance with
a particular system should be made upon the careful
evaluation by the person in charge of system design.
Assurances concerning expected system performance and
safety are the responsibility of the designer who decides
system conformity. Be sure to use the latest catalogs and
technical materials to study and evaluate specification details,
to consider the possibility of machine breakdown, and to
configure a system that ensures fail-safe safety and reliability.
●
Do not use the product in excess of its specification range.
Doing so creates the risk of product breakdown, loss of function,
or damage. It could also drastically reduce operating life.
●Before supplying air or electricity to the device and before
starting operation, always conduct a safety check of the area
of machine operation. Unintentional supply of air or electricity
creates the risk of injury due to contact with moving parts.
●Do not touch terminals, switches, or other parts, while power
is turned on. Doing so creates the risk of electric shock and
malfunction.
●Do not allow the product to be thrown into fire. Doing so
creates the risk of explosion resulting in the release of toxic
gases.
●Do not sit on the product, place your foot on it, or place other
objects on it. Doing so creates the risk of injury due to tripping
or the product tipping over, resulting in product damage and
abnormal, erratic, or runaway operation.
●Before conducting maintenance, inspection, repair,
replacement, or any other similar procedure, always
completely cut off the air supply and confirm that residual
pressure inside the product or in piping connected to the
product is atmospheric pressure. In particular, be aware that
residual air will still be in the compressor or storage tank.
The actuator may move abruptly if residual air pressure
remains inside the piping, causing injury.
●Use safety circuits or design a system that prevents damage
to machinery or injury to personnel when the machine is shut
down due to an emergency stop or electrical power failure.
●Before performing any kind of wiring work, be sure to turn off
power. Failure to do so creates the risk of electric shock.
●Do not allow lead wires and other cords to become damaged.
Allowing a cord to become cut, bent excessively, pulled, rolled
up, placed under heavy objects, or squeezed between two
objects creates the risk of current leaks or defective continuity
that can lead to fire, electric shock, or abnormal operation.
●Do not connect or disconnect connectors while power is
turned on. Also, never apply unnecessary force to connectors.
Doing so creates the risk of personal injury, device damage,
and electric shock due to abnormal machine operation.
●Always check the catalog and other reference materials for
correct product wiring and piping. Improper wiring and piping
creates the risk of damage to and abnormal operation of the
actuator, etc.
●After completing wiring work, check to make sure that all
connections are correct before turning on power.
●After completing piping work, check to make sure that the
circuit is correct before supplying air.

Safety precautions (FRZ series)
❺
important requirement such as in aircraft eguipment,
combustion equipment, leisure equipment, safety equipment,
and other places where human life or assets may be greatly
affected, take adequate safety precautions such as allowing
plenty of margin for ratings and performance, or fail-safe
measures. Contact the sales department at Koganei regarding
use in such applications.
●Use a protective cover and other means to ensure that the
operating parts of mechanical devices are isolated and do not
come into direct contact with human bodies.
●Do not configure control of the actuator in a way that could
cause workpieces to fall due to power failure.
Configure control of the system to prevent workpieces and
other items from falling due to power failure or by emergency
stops of mechanical devices.
●Attach a muffler to the exhaust port.
It will reduce the noise during exhaust.
●Lock the pressure regulation knob after regulating the pressure.
●When handling the product, wear protective gloves, safety
glasses, safety shoes, and other protective clothing.
●When the product can no longer be used or is no longer
necessary, dispose of it appropriately as industrial waste.
●Pneumatic equipment can exhibit degraded performance and
function over its operating life. Always conduct daily
inspections of the pneumatic equipment, and confirm that all
requisite system functions are satisfied, to prevent accidents
from happening.
●For inquiries about the product, consult your nearest Koganei
sales office or Koganei Overseas Department. The addresses
and telephone numbers are shown on the back cover of this
catalog.
Other precautions
●Always observe the following items.
1. When using this product in pneumatic systems, always use
genuine Koganei parts or compatible parts (recommended
parts).
When conducting maintenance and repairs, always use
genuine Koganei parts or equivalent parts (recommended
parts).
Always observe the prescribed methods and procedures.
2. Never attempt inappropriate disassembly or assembly of
the product relating to basic configurations, or its
performance or functions.
3. The sales of pressure gauges with PSI indications in Japan
are prohibited by the Japanese law.
Koganei shall not be held responsible for any problems that
occur as a result of these items not being properly observed.
●Do not use any type of medium that is not specifically
stipulated in the specifications. Using a non-specified medium
could lead to loss of function in the short term, sudden
degradation of performance, and a reduced operating life.
●In initial operations after the equipment has been idle for 48
hours or more, or has been in storage, there is a possibility
that contacting parts may have become stuck, resulting in
equipment operation delays or in sudden movements. Before
these initial operations, always run a test to check that
operating performance is normal.
●Do not use the product in locations that are subject to direct
sunlight (ultraviolet rays); locations with high humidity and
temperature, dust, salt, or iron powder. Do not use fluids in
the product or use the product in an environment that includes
corrosive fluids such as organic solvents, phosphate ester
type hydraulic oil, sulfur dioxide, chlorine gas, flon gas, ozone,
acids, alkaline, etc. It could lead to early shutdown of some
functions, a sudden degradation of performance, and a
reduced operating life. For information about materials, see
Major Parts and Materials.
●When the device is not used for long periods (over 30 days), it
is possible that the contacting parts may have become stuck
leading to delayed operation or sudden movements, resulting
in injury. Check for proper operation a minimum of once every
30 days.
●Do not place the wiring that controls the pressure switch near
power lines running a large current, powerful magnetic fields,
or where power surges occur. It could cause erratic operation.
●Do not use the product at the beach in direct sunlight, near
mercury vapor lamps, or near equipment that generates
ozone. Ozone causes rubber components to deteriorate
resulting in reduced performance, or degradation or stop of
functions.
●Do not use in locations where there is a heat source nearby
or that are subject to radiated heat.
CAUTION
●When mounting the product, leave room for adequate working
space around it. Failure to do so will make it more difficult to
conduct daily inspections or maintenance, which could
eventually lead to system shutdown or damage to the product.
●Whenever transporting or installing a heavy product, use a lift
or supports to securely support it, and use several people to
help lift it and take other precautions to ensure personal
safety.
●Do not scratch, dent, or deform the product by climbing on it,
using it as a scaffold, or placing objects on top of it. Doing so
creates the risk of damage to or breakage of the product,
resulting in operational shutdown or degraded performance.
●Always post an "operations in progress" sign for installations,
adjustments, or other operations, to avoid unintentional
supplying of air or electrical power, etc. Unintentional
supplying of air or electricity can cause electric shock or
sudden operation and may result in injury.
●Do not bring any magnetic media or memory within 3.28 ft of
the product. There is a strong magnet inside the product and
the magnetic field of this magnet may damage the data on the
magnetic media.
●If an electric leakage occurs on the control circuit, it may
cause the product to operate unexpectedly. Protect the control
circuit from electricity leaks so that electricity leaks do not
exceed the allowance in the product specifications.
●Use the specified lubricant to lubricate sliding parts. Not doing
so leads to changes in the physical properties, deterioration
of the materials used, or reduced functionality.
●Do not block the product's vent holes. The pressure will
fluctuate if the air volume changes during operations. If the
vents are blocked the pressure balance will be disrupted,
operations will no longer be as expected resulting in injury or
damage to equipment.
●Use in extremely dry air under temperatures lower than -4F
may affect the quality of the lubricating oil used. This creates
the risk of degraded performance, loss of function, or other
problems
ATTENTION
●When considering the possibility of using this product in
situations or environments not specifically noted in the catalog
or instruction manual, or in applications where safety is an
Warranty and General Disclaimer
1. Warranty Period
Koganei warrants this product for a period of no more
than 180 days from the date of delivery.
2. Scope of Warranty and General Disclaimer
(1) The Koganei product warranty covers individual
products. When a product purchased from Koganei or
from an authorized Koganei distributor malfunctions
during the warranty period in a way that is attributable
to Koganei responsibility, Koganei will repair or replace
the product free of charge. Even if a product is still
within the warranty period, its durability is determined
by its operation cycles and other factors. Contact your
nearest Koganei sales office or the Koganei overseas
department for details.
(2) Koganei shall not be held responsible for any losses or
for any damage to other machinery caused by
breakdown, loss of function, or loss of performance of
Koganei products.
(3) Koganei shall not be held responsible for any losses
due to use or storage of the product in a way that is
outside of the product specifications prescribed in
Koganei catalogs and the instruction manual, and/or
due to actions that violate the mounting, installation,
adjustment, maintenance and other safety precautions.
(4) Koganei shall not be held responsible for any losses
caused by breakdown of the product due to factors
outside the responsibility of Koganei, including but not
limited to fire, natural disaster, the actions of third
parties, and intentional actions or errors by you.

Handling instructions and Precautions
❻
Precautions for the FRZ series
●Selection
Look at the "Handling Instructions and Precautions",
"Specifications", "Various Characteristics", "Dimensions", and
other technical materials for each product to make the correct
decision.
●Mounting (installation) direction, support, and securing
1. The products cannot be mounted (installed) if a bending
moment or twisting moment is applied to the product or piping.
●Direction of flow
1.
Connect the filter regulators and regulators so that the medi-
um flows in the IN port (primary) side and out the OUT port
(secondary) side.
2.
Connect the residual pressure exhaust valves so that the
medium flows from the 1 (P) port (primary) side to the 2 (A)
port (secondary) side.
3.
Use the flow marks on the products to identify the direction of
flow of the medium in the filter regulators, regulators, and
residual pressure exhaust valves.
See the "Handling Instructions and Precautions" for each
product regarding the relationship of the flow marks and direc-
tion of flow of the medium being used (filter regulators, regula-
tors on page ❽and residual pressure exhaust valves on page
⓬.
●Maintenance space requirements
Assure there is sufficient space for maintenance inspections and
maintenance work. See the dimension diagrams for each of the
products regarding the maintenance space.
2.
Do not attach piping so that just one side is fixed as shown in
the following diagram. Support external piping separately.
3.
Use the D□module or a bracket to install all the products.
4.
The product can be mounted (installed) in any direction. It is
also possible to install it with the bowl of the filter on top.
5.
When mounting (installing) the product, always make sure it is
secured and sufficiently supported.
Design and selection
Mounting (installation) and piping
NOTE
Applying bending moment or twisting moment may damage
the product.
NOTE
It there is not enough allowance for maintenance space, it
will be impossible to remove the filter regulator bowl
assembly and replace the filter.
NOTE
If there is not enough allowance for maintenance space, it
will be impossible to do maintenance inspections and
maintenance work so the equipment may stop or the product
may be damaged.
NOTE
Connecting the products so the medium flows in reverse will
cause the product to stop functioning and damage it.
NOTE
If the product is not securely fixed in place, it may fall over,
be dropped, or operate abnormally and may cause an injury.
SUP
psi
0psi 145
120
90
60
30
14.5
29
43.5
58
PUS
psi
0psi 145
120
90
60
30
14.5
29
43.5
58
Filter bowl section
iB-Cyclone
*See the back of the catalog.
NOTE
Operating the knob and the moment caused by the OUT
(secondary) side pipes may damage the product's piping
connections.
Note The muffler must be prepared by the user.

Handling instructions and Precautions
❼
●Attaching steel pipes and fittings
If steel pipes and fittings are attached to the threaded sections of
the aluminum die-cast parts of the product, tighten them to the
torque recommended in our standards.
NOTE
Tightening with excessive torque may damage the product or
injure workers or operators.
Connecting thread M5 1/8 1/4 3/8 1/2
Torque
0.74 to 1.11 5.2 to 6.6 8.9 to 10.3 16.2 to 17.7 20.7 to 22.1
ft•lbf
Recommended tightening torque
●Preventing contamination by foreign matter
1.
Remove all foreign matter, such as metal chips, cutting oil, or
dirt, from inside pipes with an air blower (flushing) and thor-
ough washing before fitting the pipes.
2.
Do not allow foreign matter, such as metal chips, or sealing tape
from the piping threads, to get into the pipes when fitting the pipes.
NOTE
Foreign matter entering the piping may damage the product
or reduce its performance and service life.
NOTE
Use a tightening torque of 2.21 to 3.69 ft•lbf if the various pressure
gauges are mounted on the NPT1/4 pressure port plate.
NOTE
If a muffler or something is attached to the 3 (R) port of the residual
exhaust valve, tighten it to 1.33 to 1.63 ft
• lbf.
NOTE
If the sealing tape or sealant gets on the lip of pipes and
fittings, bits of it may get into the pipes and cause air leaks.
NOTE
If liquid sealant gets on the polycarbonate parts, it may
damage them.
3. Wrap the sealing tape in the direction as shown in the diagram
below leaving 1.5 to 2 threads uncovered. When using liquid sealant,
apply a suitable amount and leave 1.5 to 2.0 threads uncovered.
4. If you are using liquid sealant, do not get it on the polycarbon-
ate parts (the bowl of the filter regulator and the front cover of
the pressure gauge)
.
Medium and operating environment
●Medium and operating environment
1.
The temperature of the medium and the ambient environment
must be within the range in the specifications.
2.
Do not use media in the product or use the product in an environ-
ment that includes corrosive fluids such as organic solvents, phos-
phate ester type hydraulic oil, sulfur dioxide, chlorine gas, flon gas,
ozone, acids, alkaline, etc.
3. The bowl and the front cover of the pressure gauge of the filter
regulator are polycarbonate. This product cannot be used in
environments with the gases and fluids in item 2, nor thread-
locking adhesive, leak detection fluid, hot water or where it
may be exposed to them. This product also cannot be used in
direct ultra-violet light. See page ⓰for details.
NOTE
Using the product in an environment that is outside the specified
temperature or with media that is outside the specified
temperature will cause the product's functions to stop after a short
period and will reduce the product performance and service life.
NOTE
Using the product in an environment or with media that is specified
in the above item 2 will cause the product's functions to stop after
a short period and will reduce the product performance and
service life.
●Media
1.
Use clean air (through 5μm or smaller filter) for the supply medium.
Contact the nearest Koganei sales office or overseas department if
you are considering using something other than cleaned air.
2. Cannot use air that contains water and fluids.
3.
If air that contains water and fluids is used, or if it is possible
that they may be mixed in with the air being used, the water
and fluids must be removed completely by installing a water
and fluids removal device (such as the iB-Cyclone*) on the pri-
mary side. *See the back of the catalog.
4.
Avoid using media that is prone to extreme pulsating or surging.
NOTE
Using air that contains water and fluids will cause the
product's functions to stop after a short period and will
reduce the product performance and service life.
NOTE
Medium prone to extreme pulsating or surges will cause the
product's functions to stop after a short period and will
reduce the product performance and service life.
4. Avoid piping that is rigid, such as steel piping, if vibrations are
transmitted. Use flexible tubes so that the product is not sub-
ject to the vibrations.
●Operating environment
1.
Do not use the product in locations that are subject to direct
sunlight (ultraviolet rays); locations with high humidity and
temperature, dust, salt, or iron powder.
2.
Cover the unit when using it in locations where it might be
subject to excessive dust, dripping water, dripping oil, etc.
3.
Do not use the product in environments subject to external
vibration or impact.
NOTE
External vibrations or shocks may result in damage to
component parts.
●Method of use
Read the "Handling Instructions and Precautions" for each prod-
uct for instructions on correct usage (Filter regulator and regulator
page ❽to ⓬, residual pressure exhaust valve page ⓬and page
⓭, module adapters page ⓮, pressure switch module page ⓮
and page ⓯, □1.181 in. integrated pressure gauge page ⓯).
●Maintenance (maintenance inspection)
1.
Performance and functions may decrease as the pneumatic
equipment ages. Always conduct daily inspections of the
pneumatic equipment, and confirm that all requisite system
functions are satisfied, to prevent accidents from happening.
2.
Read the "Handling Instructions and Precautions" for instruc-
tions on correctly doing maintenance and replacing maintenance
parts (Filter regulator and regulators page ⓫and page ⓬).
3. The product must be disassembled and reassembled to use
the seal kit.
Operation and maintenance inspections
NOTE
The product is no longer under warranty if it is disassembled
or reassembled.
psi
SUP
0psi 145
120
90
60
30
14.5
29
43.5
58
D
i
r
e
c
t
i
o
n
o
f
w
r
a
p
p
i
n
g
Leave 2 threads clear
Leave 2 threads clear
S
e
a
l
i
n
g
t
a
p
e
Liquid
sealant
iB-Cyclone
*See the back of the catalog.
Precautions for the FRZ series
Note The muffler must be prepared by the user.

❽
3. It is not possible to install a valve on the IN port (primary) side of
the internal pilot type filter regulator or regulator (such as models
FRZ4
□ , FRZ5 □ , RZ4 □ , RZ5 □ ) to repeatedly switch the pres-
sure on the IN port (primary) side.
3. When using a built-in check mechanism specification filter regula-
tor or regulator (such as models FRZ32 or RZ32) installed after the
valve to adjust the thrust of the actuator, set the pressure on the
OUT port (secondary) side of the built-in check mechanism specifi-
cation filter regulator or regulator not to rise above the set pres-
sure, which may be caused by the back pressure of the actuator
(As a guideline, the difference in pressure for the push side and the
pull side of the actuator should be 43.5 psi or less.)
2. The internal pilot type filter regulators and regulators (such as
models FRZ4
□ , FRZ5 □ , RZ4 □ , RZ5 □ ) use the relief port on
the OUT port (secondary) side to reduce residual pressure when
the IN port (primary) side pressure is released.
2. Install a separate exhaust mechanism on the OUT port (secondary)
side if an external force applied to an actuator or something on the
OUT port (secondary) side of the filter regulator or regulator gener-
ates a sudden pressure increase.
4. The OUT port (secondary) side pressure may fluctuate if air is not con-
sumed for a long time or if a sealed circuit or balance circuit is used.
Contact your nearest Koganei sales office or overseas department.
5. Contact your nearest Koganei sales office or overseas department if
you are using a circuit that needs highly precise pressure regulation.
Filter regulator
Regulator
●Pressure setting
1.
A safety device must be installed for equipment/devices installed
on the OUT port (secondary) side of the filter regulator or the reg-
ulator, because the equipment/device will be damaged or malfunc-
tion due to the pressure if the set pressure value is exceeded.
2. We recommend setting the pressure on the OUT port (second-
ary) side to less than 85% of the supply pressure setting on the
IN port (primary) side.
●Water and fluids removal
The filter regulator does not have a water and fluids removal
function.
●
Reverse flow from the OUT port (secondary) side to the IN port
(primary) side (residual pressure exhaust)
1. Select the filter regulator or regulator (such as models FRZ32 and
RZ32) with built in check mechanism specifications to release
residual pressure on the IN port (primary) side to reduce pressure
on the OUT port (secondary) side of the direct operation type fil-
ter regulator and regulator (such as models FRZ3□and RZ3□).
● OUT Port (secondary) side pressure exhaust and vent hole
1. When the knob on the filter regulator or regulator is turned to reduce the
OUT port (secondary) side pressure or when the OUT port (secondary)
side pressure is higher than the set pressure and is exhausted, air is
exhausted to the outside through the vent hole shown in the diagram.
Design and selection
NOTE
If the pressure is set above 85%, the effect of the fluctuations in
the IN port (primary) side pressure and flow rate are more prone
to affect the OUT port (secondary) side pressure, and it
becomes unstable.
NOTE
Residual pressure processing on the OUT port (secondary) side
with the standard specifications and low-pressure specifications
may not be possible depending on the operating conditions.
NOTE
There may be some vibration and noise caused by the exhaust.
NOTE
Changing the pressure of the IN port (primary) side may cause
fluctuation in the OUT port (secondary) side set pressure.
NOTE
The relief port is smaller than the diameter of the pipe and may
not be able to adapt to the sudden rise in pressure of the OUT
port (secondary) side.
●Air consumption
1.
The internal pilot type filter regulators and regulators (such as
models FRZ4□, FRZ5□, RZ4□, RZ5□) consume air while
regulating pressure on the OUT port (secondary) side.
2.
Air consumption varies depending on the relationship of the IN
port (primary) side pressure and the OUT port (secondary)
side pressure.
3.
The internal pilot type filter regulators and regulators (such as
models FRZ4□, FRZ5□, RZ4□, RZ5□) reduce pressure by
consuming air when the IN port (primary) side and OUT port
(secondary) side are cut off and sealed.
●Flow mark
The following diagram shows the relationship of the direction of flow
of the media and the flow mark on the filter regulator or regulator.
Mounting (installation) and piping
OPEN
In port Out port
Flow mark
In port Out port
For FRZ3□and RZ3□For FRZ4□, FRZ5□,
RZ4□, and RZ5□
Direction of flow of media used Direction of flow of media used
OPEN
0psi 145
120
90
60
30
0psi 145
120
90
60
30
Built-in check mechanism
regulator
<Reference> Improving the system with a filter regulator
or regulator with built-in check mechanism.
The filter regulator or regulator with built-in check mechanism
releases pressure from the OUT port (secondary) side pressure to
the IN port (primary) side as the main valve temporarily opens,
because the pressure balance is disrupted when the built-in check
valve is open as the IN port (primary) side pressure is lost. Due to
easy change of the thrust of the pushing and pulling sides of the
actuators, you can reduce air consumption by operating with low
pressure on the side which does not need thrust.
Tank
Closed Closed Closed Closed
Tank
Pressure in tank decreases
due to air consumption.
Vent hole
Vent hole
For FRZ3 and RZ3 For FRZ4, RZ4,
FRZ5, and RZ5

Handling instructions and Precautions
❾
●Panel mount
1.
All the mounting holes for the filter regulator and regulators for
the panel mount installation are φ1.122 in.
2.
See the following table for the thickness of panels.
3.
Use the following procedure to install with a panel mount.
①
Remove the knob.
(For how to remove the knob see "Removing the knob" on
page ❿.)
②
Attach the filter regulator or regulator to the panel.
③
Screw on the mounting ring.
④
Attach the knob.
(For how to attach the knob see "Attaching the knob" on
page ❿.)
NOTE
Using a panel that is thicker than specified may make it
impossible to secure the mounting ring or decrease the
visibility of the yellow caution ring.
NOTE
Tighten the mounting ring to less than 2.21 ft•lbf.
Model FRZ3□
RZ3□
FRZ4□
RZ4□
FRZ5□
RZ5□
Thickness
0.118 or less 0.276 or less
in
●Locking and releasing the knob
1.
The Knobs on the filter regulators and regulators use a push
lock mechanism.
Use the procedure shown below to lock and release the knob.
●Pressure regulation
1.
Pressure regulation is done as shown in the following diagram
by turning the knob in the "＋" direction to increase pressure
and in the "−" direction, shown at the base of the knob, to
reduce it.
2.
Always release the knob lock when regulating the pressure.
3.
Use a pressure gauge to check the pressure on the IN port
(primary) side and OUT port (secondary) side while regulating
the pressure.
4.
It is possible to increase the set pressure to exceed the upper
limit of the pressure setting range by turning the knob to the
upper limit of the "＋" side, but keep the regulated pressure
within the pressure setting range.
3.
Lock the knob after regulating the pressure.
2.
Start at a low pressure and match it to the desired set pres-
sure when regulating the pressure. If you exceed the desired
pressure, lower the pressure again and start from a low pres-
sure again to set the pressure.
Operation and maintenance inspections
NOTE
Turning the knob while it is locked may damage component
parts.
NOTE
Starting from a high pressure to set the desired pressure
causes unstable pressure on the OUT port (secondary) side.
NOTE
Turning the knob farther than necessary may damage
component parts.
Yellow caution ring
Shows the state of
the Knob lock
Increase pressure Reduce pressure
Lock releaseLock
Knob
Knob
Various panels
Mounting ring
Filter regulator
Regulator
●Piping work
Connect pipes and fittings to the filter regulator and regulator IN
ports and OUT ports so that the weight and torque of the pipes
do not affect the product. When tightening the piping, grip the
main unit and tighten it to the torque recommended on page ❼.
●Installing brackets
To install brackets, do it in the following order.
①
Remove the knob.
(For how to remove the knob see "Removing the knob" on
page ❿.)
②
Attach the bracket.
③
Screw on the mounting ring.
④ Attach the knob.
(For how to attach the knob see "Attaching the knob" on
page ❿.)
NOTE
Applying unnecessary force or impact to the knob, bowl
assembly, or pressure gauge may damage component parts.
NOTE
Tighten the mounting ring to less than 2.21 ft•lbf.
Loc
L

❿
●Removing the knob
Use the following procedure to remove the knob.
① Release the knob lock.
(For how to release the knob lock see "Locking and releas-
ing the knob lock" on page ❾.)
② Turn the mounting ring counterclockwise (in the direction of
the arrow in the diagram below).
③ Pull the mounting ring over in the direction of the knob.
④ Pull off the knob and the mounting ring together.
●Attaching the knob
1.
Use the following procedure to attach the knob.
① Release the pressure of the IN port (primary) side to the
atmosphere.
② Screw on the mounting ring.
③
Press the knob in until the yellow caution ring is not visible.
NOTE
Turn the mounting ring until it comes off the threads.
NOTE
Installing the knob before screwing on the mounting ring
makes it impossible to attach the mounting ring and makes
the knob difficult to remove.
NOTE
Before pressing on the knob, align the square section of the
adjusting assembly and the square indented portion of the
base of the knob to make the knob easier to press on (on
page ⓫).
NOTE
The release sleeve of the mounting ring must be pulled up
until it spreads the hooks (3 places) on the knob.
Mounting ring
Mounting ring
Release sleeve
Hooks on knob
(3 places)
Knob
Pressure port plate
Groove
O-ring
(no port)
(NPT 1/4)
Pressure port plate
□
1.181 in. series integrated
pressure gauge
Tongue on main unit
3. If it is impossible to release the pressure on the IN port (pri-
mary) side to the atmosphere, the pressure on the OUT port
(secondary) side will rise temporarily, check for any effect it
may have had on equipment and devices that are installed
after the filter regulator or regulators, and then attach the knob.
2.
Attaching the knob while the filter regulator or regulator IN
ports (primary) side pressure is being supplied, may cause a
temporary rise in pressure on the OUT port (secondary) side
pressure.
Before attaching the knob, always release pressure on the IN
port (primary) side to the atmosphere, because a temporary
increase in pressure on the OUT port (secondary) side may
occur which may damage equipment or devices on the OUT
port (secondary) side or cause a malfunction.
NOTE
It may damage the equipment or devices or injure workers or
operators.
●Changing the □1.181 in. integrated pressure gauge and
pressure port plate
Use the following procedure to rotate the □1.181 in. integrated
pressure gauge 180°, and to change the □1.181 in. integrated
pressure gauge or pressure port plate.
① Remove the two small screws.
② Remove any metal chips from the female thread hole with
an air blower.
③ Put the o-ring on the □1.181 in. integrated pressure gauge
or pressure port plate.
④ Align the groove on the □1.181 in. integrated pressure gauge
or pressure port plate with the tongue on the main unit and
attach it.
⑤ Tighten the two mounting screws to 0.66 to 0.81 ft•lbf
NOTE
If there are any metal chips left, they may break the threads
or get on the o-ring and cause an air leak.
NOTE
Not using an o-ring will result in air leaks.
NOTE
If torque exceeding the specifications is applied, the head of
the screw or threads may be damaged and cause damage to
component parts. Also, if torque below the specifications is
used, the screw may come loose and cause an air leak.

Handling instructions and Precautions
⓫
5. When replacing the seal kit, element, and bowl assembly, be
careful not to lose component parts.
6.
Refer to the diagram at right when replacing the seal kit, ele-
ment, and bowl assembly.
NOTE
Always assemble the component parts correctly.
NOTE
The product is no longer under warranty if it is disassem-
bled or reassembled.
NOTE
The product is no longer under warranty if it is disassem-
bled or reassembled.
●Installing provided options
1.
When installing the various types of pressure gauges, always
apply the wrench on the square or hexagonal part of the pip-
ing connections.
2.
Use a tightening torque of 2.21 to 3.69 ft•lbf if the various
pressure gauges are mounted on the NPT1/4 port plate pro-
vided.
3.
There is a stopper on the NPT1/4 female thread of the NPT1/4
pressure port plate.
NOTE
Gripping the body of the various pressure gauges to tighten
them may damage component parts.
NOTE
If torque exceeding the specifications is applied, it may damage
component parts. Also, if torque below the specifications is
used, the screw may come loose and cause an air leak.
NOTE
Further tightening after the stopper has been reached may
damage component parts.
NOTE
The service life of the element varies depending on the
quality of air supplied to the IN port (primary) side. If there is
a lot of foreign matter in the air supply to the IN port (primary)
side, install a pre-filter on the IN port (primary) side or
change the element more often. As a guideline, change the
element after a year of use.
● Replacing the pressure port plate, knob, and mounting ring
1. When replacing the pressure port plate, refer to "Replacing
the □1.181 in. integrated pressure gauge and pressure port
plate" on page ❿.
2.
When replacing the knob and mounting ring, refer to
"Removing the knob" and "Attaching the knob" on page ❿.
● Replacing the seal kit, element, and bowl assembly
1.
To replace the seal kit, element, and bowl assembly, remove
the filter regulator or regulator and do the work on a work table.
2. The o-rings and other sealing materials (except for the diaphragm)
of the filter regulator and regulator are coated with grease.
3. Contact your nearest Koganei sales office or overseas depart-
ment if you are considering re-coating the o-rings and other
parts.
Recommended grease: Lithium Soap based No. 2 or equivalent
4. Periodically replace the element in the filter regulator.
O-ring large*
O-ring small*
O-ring medium*
Valve assembly*
Valve guide
Element
Bowl assembly
Stem
Spring
①
①
②
②
③
①
②
③
①
②
Filter regulator bowl side
FRZ3□FRZ4□・FRZ5□
*Parts in seal kit.
Assembly
position
Assembly
position
Assembly position
Regulator and filter regulator knob side
RZ3□・FRZ3□RZ4□・RZ5□・FRZ4□・FRZ5□
Diaphragm assembly*
Spring
Bonnet
4 small screws
(tightening torque
0.797 to 0.974 ft•lbf)
4 small screws
(tightening torque
0.66 to 0.81 ft•lbf)
Knob
*Parts in seal kit.
Adjusting assembly
Mounting ring
Filter regulator
Regulator

⓬
Residual pressure exhaust valve
●Flow mark
The following diagram shows the relationship of the direction of
flow of the media and the flow mark on the residual pressure
exhaust valve.
●Piping work
1.
Connect pipes and fittings to the residual pressure exhaust
valve 1 (P) port and 2 (A) port so that the weight and torque of
the pipes do not affect the product. When tightening the piping,
grip the main unit and tighten it to the torque recommended on
page ❼.
2.
If a muffler or something is attached to the 3 (R) port of the
residual exhaust valve, tighten it to 1.33 to 1.62 ft•lbf.
●Installing brackets
To install brackets, do it in the following order.
① Attach the bracket.
② Tighten the two mounting screws to 0.915 to 1.11 ft•lbf.
Mounting (installation) and piping
NOTE
Applying unnecessary force or impact to the knob may
damage component parts.
NOTE
If torque exceeding the specifications is applied, the head of
the screw or threads may be damaged and cause damage to
component parts. Also, if torque below the specifications is
used, the screw may come loose and cause an air leak.
1 (P) port 2 (A) port
3 (R) port
Flow mark
Knob
Mounting screw
*Parts in seal kit.
Plug
(tightening torque
1.33 to 1.62 ft•lbf)
Plug
(tightening torque
2.66 to 3.25 ft•lbf)
O-ring large*
Spring
Valve assembly*
Stem
O-ring small*
Regulator plug side
RZ3□RZ4□・RZ5□
Assembly
position
NOTE
If torque exceeding the specifications is applied, it may
damage component parts. Also, if torque below the
specifications is used, the screw may come loose.
NOTE
The product is no longer under warranty if it is disassem-
bled or reassembled.
Note The muffler must be prepared by the user.

Handling instructions and Precautions
⓭
●State of air supply and exhaust
1.
State of air supply is that air flows through from 1 (P) port (pri-
mary) side to 2 (A) port (secondary) side and is shut off at the
3 (R) port.
2.
State of air exhaust is that air flows through from 2 (A) port
(secondary) side to 3 (R) port and is shut off at 1 (P) port (pri-
mary) side.
●Switching the state of air supply and exhaust
1.
To switch the air flow from supply to exhaust and vice versa,
turn the knob 90° to "SUP", which is shown near the bottom of
the knob, to supply air, or turn the knob 90° to "EXH" to
exhaust air.
●Using the lock hole
1.
The lock hole on the residual pressure exhaust valve is used
to secure the air flow in a state of exhaust and to prevent
changes to the state of the air supply.
2.
Check the window shown in the diagram below to see the
state of the residual pressure exhaust valve. If "SUP" is show-
ing, air is being supplied. If "EXH" is showing, air is being
exhausted.
2. The diameter of the lock hole is φ0.394 in.
3. A lock must be supplied separately.
3. Turn the knob slowly to gradually supply or exhaust air.
Operation and maintenance inspections
NOTE
Air cannot be supplied while the look hole is used.
NOTE
1(P) port (primary) side air cannot flow to 2 (A) port
(secondary) side and 3 (R) port at the same time.
SUP.
EXH.
Exhausting air
Supplying air
: Supplying air : Exhausting air
Lock (provided by the customer)
SUP EXH

D module
Connecting bracket
Coupling plate
Residual pressure
exhaust valve
Filter regulator
Allen wrench
Temporarily fixed in place
Hexagon
socket
head screw
<Example assembly>
⓮
Module adapter
●Mounting (installation)
1.
Use the various modules and adapters when combining the rel-
evant FRZ series models and the relevant iB-Cyclone* models.
*See the back of the catalog.
2. Refer to "List of models" on page 󱣊 regarding combinations of
the relevant models, modules, and adapters.
Mounting (installation) and piping
NOTE
The FRZ3□, RZ3□, and IBCY30 cannot be used together.
3. When assembling the products, check the flow marks on the prod-
ucts and assemble them so the media flows in the same direction.
See the "Handling Instructions and Precautions" for each
product regarding the relationship of the flow marks and direc-
tion of flow of the medium being used (filter regulators, regula-
tors on page ❽and residual pressure exhaust valves on page
⓬.
4.
Use the following procedure to assemble the products using
the modules and adapters.
① Attach the o-rings to the connecting bracket (2 places)
② Temporarily fix the products to the coupling plate.
③ Tighten a hexagon socket head screw to 0.66 to 0.81 ft•lbf.
NOTE
If torque exceeding the specifications is applied, it may
damage component parts. Also, if torque below the
specifications is used, the screw may come loose.
NOTE
Not using an o-ring will result in air leaks.
Pressure switch module
●Mounting (installation)
1. The method to install the pressure switch modules is the same
for the various modules and adapters. Refer to the "Handling
Instructions and Precautions" for the modules and adapters.
2. Do not pull too hard on the wires or bend them too much. Also,
when handling the products, carry them by the pressure switch
side and do not apply too much force to the wires.
3.
Be careful when handling the pressure switch modules, subject-
ing them to strong impact may cause damage or malfunction.
●Contact capacity
Use the specified load voltage and load current.
●Contact protection measure
The pressure switch module uses a reed sensor switch. Take the
contact protection measures shown in the diagram below.
Mounting (installation) piping
NOTE
Using a load voltage or a load current that is outside the
specifications may cause the contacts to fuse.
NOTE
Contacts may fuse if measures to protect the contacts are
not taken.
For connecting an inductive load (electromagnetic relay etc)
If a capacitive surge occurs (if wire length is 32.8 ft)
Choke coil: 1 to 5 mH
C surge suppressor
As close as possible
Load
Surge absorption element
Inductive load
Pressure switch
For DC ... Diode or CR, etc.
For AC ... CR etc.
Diode: Forward current should be more than the
circuit current and the reverse current
should be 10 times greater or more than
the circuit voltage.
CR: C=0.01 to 0.1μF
R=1 to 4 kΩ
●Operating environment
The pressure switch module uses a magnetically sensitive sen-
sor switch.
Avoid large electric currents, such as locations where there is a
strong magnetic field or near power lines.
Medium and operating environment
NOTE
Use in locations with strong external magnetic fields or near
strong electric currents may cause the pressure switch
module to malfunction.

Handling instructions and Precautions
⓯
●Adjusting the range of the set pressure
1.
Use the procedure below to adjust the range of the set pres-
sure (the green portion).
1. Adjust the lower limit of the range of the set pressure by
rotating the protrusions (2 places) clockwise with your hand.
2. Adjust the upper limit of the range of the set pressure by
rotating the protrusions (2 places) clockwise with your hand.
●Surging, vibration, and shock
The □1.181 in. integrated pressure gauge is a precision device. It
cannot be used if the medium surges, or external vibration or
shock is applied.
Operation and maintenance inspections
Medium and operating environment
□ 1.181 in. series integrated pressure
gauge
MPa
1.0
0.8
0.60.4
0.2
0
MPa
●Mounting (installation)
1. Read the "Handling Instructions and Precautions" for the filter
regulator and regulator when installing the □1.181 in. inte-
grated pressure gauge to the filter regulator or the regulator.
2.
Install the □1.181 in. integrated pressure gauge to the filter reg-
ulator or regulator in the orientation shown in the diagram below.
Mounting (installation) and piping
NOTE
It is possible to change the □1.181 in. integrated pressure
gauge installation to a 180° orientation, but it is not possible
to change it to a 90° orientation.
NOTE
Adjusting the range of the set pressure with a tool may
damage component parts.
NOTE
Surges in the media, external vibrations or shocks may result
in damage to component parts.
OPEN OPEN OPEN
180° rotation installation
□1.181 in.
series with
integrated
pressure
gauge
90° rotation installation
not possible
0psi 145
120
90
60
30
0psi 145
120
90
60
30
0psi 145
120
90
60
30
psi
14.5
29
43.5
58
NOTE
(Raise
pressure)
Adjusting screw
Do not turn the slotted
head screw on the
back side.
It will cause a
malfunction.
(Reduce
pressure)
−
＋
Tool
Pressure switch module
●Detection pressure scale
1. Use a detection pressure scale as a guideline.
●Settings for the detection pressure
1. The detection pressure can be set to a value over the range of
detection pressure, but always set it within the specified val-
ues.
2. Detection pressure scale is for the set value when the sup-
plied pressure falls.
3. Detection pressure scale is for the set value when the OFF
signal is detected.
2. Use the following procedure to set the detection pressure.
① Turn the adjusting screw toward the "＋" until the regulating
indicator is aligned with the desired detection pressure on
the scale.
② Supply pressure and use a multi meter to confirm that the
signal indicates the desired pressure setting is detected.
Operation and maintenance inspections
NOTE
Use a multi meter to confirm the output of the pressure
switch module.
NOTE
Setting the pressure over the range of the detection pressure
will damage component parts.
NOTE
The ON signal is detected when the pressure exceeds the
set pressure on the detection pressure scale by the response
differential.
NOTE
To accurately set the detected pressure, use a separate
pressure gauge.
Switch output ON
OFF
14.5
Value set on the detection pressure scale
Pressure setting range
Note: Response differential is less than 12 psi
58 psi
DifferentialNote
Protrusions (two places)
Pressure setting range (green) Upper limit
Lower
limit

Reference data
⓰
●About the chemical resistance of polycarbonate
The chemicals in the following table degrade polycarbonate. Because of this, they may damage the bowl of the filter regulator or the
front cover of the pressure gauge and cause an accident. The products cannot be used in locations where the chemicals in the following
table are present in the compressed air, ambient air, or on surfaces. This does not mean that polycarbonate is chemically resistant to all
chemicals not listed below.
Type Classification Chemical name Application example
Inorganic
compound
Acid Chlorine, sulfuric acid, nitric acid, fluorine, phos-
phoric acid, chromic acid
Acid cleaning for metals, acid degreasing,
and coating processing
Alkali Caustic soda, caustic potash, hydrated lime, am-
monia water, sodium carbonate Alkaline degreasing of metals
Inorganic salt Sodium sulfide, potassium nitrate, potassium
dichromate, sodium nitrate Dyes, rust inhibitor
Organic
compounds
Aromatic hydro-
carbons Benzene, toluene, xylene, ethyl benzene, styrene Paint thinner
(Benzene, toluene, xylene)
Chlorinated
aliphatic
hydrocarbons
Methyl chloride, ethylene chloride, methylene
chloride, acetylene dichloride, chloroform,
trichlene, tetrachloroethylene, carbon tetrachloride
Organic solvents for metal cleaning
(trichlene, tetrachloroethylene, carbon tetra-
chloride)
Chlorinated
aromatic
hydrocarbons
Chlorobenzene, dichlorobenzene, benzene
hexachloride (BHC) Agricultural chemicals
Petroleum com-
ponents Solvent, naphtha, gasoline Fuel
Alcohol Methyl alcohol, ethyl alcohol, cyclohexanol, benzyl
alcohol Anti-freezing agents
Phenol Carbolic acid, cresol, naphthol Antiseptic solutions
Ether Methyl ether, methyl ethyl ether, ethyl ether Brake fluid additive, detergent
Ketones Acetone, methyl ethyl ketone, cyclohexane, aceto-
phenone Cleaning solutions
Carboxylic acid Formic acid, acetic acid, butyl acid, acrylic acid,
oxalic acid, phthalic acid
Dyes, aluminum processing solution (oxalic
acid), paint medium (phthalic acid)
Phthalic acid
ester
Dimethyl phthalate (DMP), diethyl phthalate (DEP),
dibutyl phthalate (DBP), dioctyl phthalate (DOP)
Lubricants, synthetic hydraulic fluids,
corrosion resistant additives, synthetic resin
plasticizer
Oxyacid Glycolic acid, lactic acid, malic acid, citric acid,
tartaric acid Food preservatives, acidulant
Nitro com-
pounds
Nitromethane, nitroethane, nitroethylene,
nitrobenzene Paint solvent, explosives
Aminos Methylamine, dioctylamine, ethylamine, aniline,
acetanilide Brake fluid additive
Nitrile Acetonitrile, acrylonitrile, benzonitrile Nitrile rubber materials

Port size M5×0.8mm, NPT1/8, NPT1/4 NPT1/8, NPT1/4, NPT3/8 NPT1/4, NPT3/8, NPT1/2
Filtration μm 5
Relief start pressure psi Set pressure ＋7 or less
Regulation method Direct operation type and relief type Internal pilot type and relief type
Medium Air
Maximum operating pressure
psi 145
Proof pressure psi 218
Operating temperature range (atmosphere and media) °F 41 to 140 (non-condensation)
Air consumption
Note 1
ft3/min (SCFM)  0.18 or less
Standard/built-in check mechanism 7 to 123
For low pressure 7 to 58
Pressure setting range psi
Order codes
FRZ F11
Body Port size NPT
Model
M5 1/8 1/4 3/8 1/2
30 M5 01 02
40 01 02 03
50 02 03 04
31 M5 01 02
41 01 02 03
51 02 03 04
32 M5 01 02
Bracket
Blank No bracket
BWith bracket
Filter regulator
Pressure gauge specifications
Blank No pressure gauge (pressure gauge connection port NPT1/4)
GP1 No pressure gauge (pressure gauge connection port NPT1/8)
GN No pressure gauge (No pressure gauge connection port)
G1C 145 psi specification □1.181 in. integrated pressure gauge
G4C 58 psi specification □1.181 in. integrated pressure gauge
G1 145 psi specification φ1.575 in. pressure gauge
G3 44 psi specification φ1.575 in. pressure gauge
G1S
145 psi specification φ 1.575 in. stainless Bourdon tube pressure gauge
G3S 44 psi specification φ 1.575 in. stainless Bourdon tube pressure gauge
GS6 145 psi specification digital pressure switch
GS1A
145 psi specification □ 1.969 in. pressure gauge with built-in switch Lead wire For 24 VDC
GS1B 145 psi specification □ 1.969 in. pressure gauge with built-in switch Lead wire For 100 VAC, 200 VAC
GS1C 145 psi specification □ 1.969 in. pressure gauge with built-in switch With DIN connector For 24 VDC
GS1D 145 psi specification □ 1.969 in. pressure gauge with built-in switch With DIN connector For 100 VAC, 200 VAC
Note: Refer to order codes and dimensions on page 󱣏to 󱣖for information about the
specifications for pressure gauges, pressure gauges with electronic switches,
pressure gauges with built-in pressure switches, and purchasing individual parts.
Standard
Low pressure
Built-in check
mechanism
Filter regulator
Symbol
Specifications
●Order codes for brackets only
8Z-BK
●Standard
●Low pressure
●Built-in check mechanism
FRZ30-F11•FRZ31-F11•FRZ32-F11
FRZ40-F11•FRZ41-F11
FRZ50-F11•FRZ51-F11
Model Standard FRZ30-F11 FRZ40-F11 FRZ50-F11
For low pressure
FRZ31-F11 FRZ41-F11 FRZ51-F11
Item Built-in check mechanism
FRZ32-F11
Mass (for standard specifications and largest port size) lb 0.35 0.44 0.64
Standard equipment Mounting ring
OptionNote 2
□1.181 in. integrated pressure gauge (assembled),
other pressure gauges (included parts), brackets (included parts)
Body Die cast aluminum alloy
Bonnet and adapter Polyacetal
Diaphragm Base fabric ＋synthetic rubber
Bowl Polycarbonate
Filter element Non-woven fabric
Bracket Steel plate (electroless nickel plated)
Materials of major parts
Note 1: Maximum value of specified range. Air consumption varies depending on the relationship of the primary pressure and the secondary pressure.
2: Refer to the order codes and the specifications for each product starting on page 󱣎for details on the various types of options.
⓱
NPT thread
specifications

Order codes
Inner construction
Body size
30 For FRZ3□
40 For FRZ4□
50 For FRZ5□
Body size
30 For FRZ3□
40 For FRZ4□
50 For FRZ5□
Body size
30 For FRZ3□
40 For FRZ4□
50 For FRZ5□
●Parts for maintenance
●Bowl assembly ●Element
●Knob
●Pressure port plate
●Mounting ring
●Seal kit (various o-rings, 1 valve assembly, and 1 diaphragm assembly)
BA-FRZ□-F11 E-□Z
H-FRZ
P-FRZ
(without pressure gauge connection port)
GP-FRZ□-F11 (with pressure gauge connection port)
R-FRZ
SRK-FRZ□
Knob
(with lock) Bonnet
Spring
Caution ring
Stem
Valve
Guard button
Filter element
Bowl
Adjusting
assembly
Mounting ring
Body
Valve guide
Spring
Diaphragm
For FRZ32
Built-in check
mechanism
FRZ3□
Knob
(with lock)
Bonnet
Adjusting
assembly
Caution ring
Rubber ball
Adapter
Valve
Guard button
Spring
Filter element
Bowl
Spring
Spring
Diaphragm
Mounting ring
Body
Stem
Valve guide
Diaphragm
FRZ4□・FRZ5□
⓲
1 o-ring and
2 small screws
Connection port diameter
Blank NPT1/4
1 NPT1/8
1 o-ring and
2 small screws
Refer to "Replacing the seal kit, element, and bowl assembly" on
page ⓫for the component parts of the seal kit.

Pressure characteristics
●Standard and built-in check mechanism
FRZ30-F11
FRZ32-F11 FRZ40-F11 FRZ50-F11
Setting
point Setting point Setting
point
Secondary side pressure
26.1
27.6
29
30.5
31.9
33.4
34.8
29
24.7
psi
0.18
0.19
0.2
0.21
0.22
0.23
0.24
0.17
MPa
Primary side pressure
43.5 58 72.5 87 101.5 116 130.5 145 psi
0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.91MPa
Secondary side pressure
26.1
27.6
29
30.5
31.9
33.4
34.8
29
24.7
psi
0.18
0.19
0.2
0.21
0.22
0.23
0.24
0.17
MPa
Primary side pressure
43.5 58 72.5 87 101.5 116 130.5 145 psi
0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.91MPa
Secondary side pressure
26.1
27.6
29
30.5
31.9
33.4
34.8
29
24.7
psi
0.18
0.19
0.2
0.21
0.22
0.23
0.24
0.17
MPa
Primary side pressure
43.5 58 72.5 87 101.5 116 130.5 145 psi
0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.91MPa
⓳
FRZ30-F11-M5
FRZ32-F11-M5
FRZ30-F11-01
FRZ32-F11-01
FRZ30-F11-02
FRZ32-F11-02
FRZ40-F11-01
FRZ40-F11-02
FRZ40-F11-03
FRZ50-F11-02
FRZ50-F11-03
FRZ50-F11-04
0 1.75 3.5 5.25 ft
3
/min (SCFM)
50 100 150
ℓ /min (ANR)
Flow rate
0 8.75 17.5 26.25 ft
3
/min (SCFM)
250 500 750
ℓ /min (ANR)
Flow rate
0 17.5 35 52.5 ft
3
/min (SCFM)
500 1000 1500
ℓ /min (ANR)
Flow rate
03570105
ft
3
/min (SCFM)
1000 2000 3000
ℓ /min (ANR)
Flow rate
03570105
ft
3
/min (SCFM)
1000 2000 3000
ℓ /min (ANR)
Flow rate
0 17.5 35 52.5 ft
3
/min (SCFM)
500 1000 1500
ℓ /min (ANR)
Flow rate
0 17.5 35 52.5 ft
3
/min (SCFM)
500 1000 1500
ℓ /min (ANR)
Flow rate
0
0
8.75 17.5 26.25 ft
3
/min (SCFM)
250 500 750
ℓ /min (ANR)
Flow rate
0 8.75 17.5 26.25 ft
3
/min (SCFM)
250 500 750
ℓ /min (ANR)
Flow rate
0
14.5
29
43.5
58
72.5
87
101.5
psi
Secondary side pressure
0.1
0.2
0.3
0.4
0.5
0.6
0.7
MPa
0
14.5
29
43.5
58
72.5
87
101.5
psi
Secondary side pressure
0.1
0.2
0.3
0.4
0.5
0.6
0.7
MPa
0
14.5
29
43.5
58
72.5
87
101.5
psi
Secondary side pressure
0.1
0.2
0.3
0.4
0.5
0.6
0.7
MPa
00
14.5
29
43.5
58
72.5
87
101.5
psi
Secondary side pressure
0.1
0.2
0.3
0.4
0.5
0.6
0.7
MPa
0
14.5
29
43.5
58
72.5
87
101.5
psi
Secondary side pressure
0.1
0.2
0.3
0.4
0.5
0.6
0.7
MPa
0
14.5
29
43.5
58
72.5
87
101.5
psi
Secondary side pressure
0.1
0.2
0.3
0.4
0.5
0.6
0.7
MPa
0
14.5
29
43.5
58
72.5
87
101.5
psi
Secondary side pressure
0.1
0.2
0.3
0.4
0.5
0.6
0.7
MPa
0
14.5
29
43.5
58
72.5
87
101.5
psi
Secondary side pressure
0.1
0.2
0.3
0.4
0.5
0.6
0.7
MPa
0
14.5
29
43.5
58
72.5
87
101.5
psi
Secondary side pressure
0.1
0.2
0.3
0.4
0.5
0.6
0.7
MPa
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Flow rate characteristics
●Standard and built-in check mechanism
Remarks: Graphs show flow rate characteristics at 101.5 psi constant pressure on the primary side.