SMC Networks ZB Series User manual

Doc. no. ZB-OM00201-B
PRODUCT NAME
Compact Vacuum Unit Ejector/
Vacuum Pump System
MODEL / Series / Product Number
ZB Series

Doc. no. ZB-OM00201-B
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Contents
Safety Instructions 2
Model Indication and How to Order 10
Names of parts of product 16
Mounting and Installation 18
Air Supply 20
Supply Pressure 21
Piping 21
Handling of the V Port Assembly 22
Solenoid Valve 26
Construction 30
Maintenance 31
Replacement Procedure for Filter Element 36
Replacement Procedure for Silencer 37
Replacement Procedure for Solenoid Valve (Supply Valve, Release Valve) 38
Manifold Products 39
Filter Case 40
Vacuum break flow adjusting needle 40
Exhaust from Ejector 40
Specifications 41
Circuit Diagram 46
Weight 48
Exhaust Characteristics and Flow Characteristics of Ejector 49
Flow Characteristics of Vacuum Pump System 52
Flow Characteristics Curve 53
Pressure Sensor Assembly 53
Vacuum Pressure Switch Assembly 54
Troubleshooting 55

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These safety instructions are intended to prevent hazardous situations and/or equipment damage.
These instructions are categorized into three groups, "Caution", "Warning" and "Danger" depending on the level
of hazard and damage, and the degree of emergency. They are all important notes for safety and must be
followed in addition to International Standards (ISO/IEC), Japan Industrial Standards (JIS)*1) and other safety
regulations*2).
*1) ISO 4414: Pneumatic fluid power -- General rules relating to systems.
ISO 4413: Hydraulic fluid power -- General rules relating to systems.
IEC 60204-1: Safety of machinery --Electrical equipment of machines. (Part1: General requirements)
ISO 10218-1992: Manipulating industrial robots -Safety.
JIS B 8370: General rules for pneumatic equipment.
JIS B 8361: General rules for hydraulic equipment.
JIS B 9960-1: Safety of machinery –Electrical equipment for machines. (Part 1: General requirements)
JIS B 8433-1993: Manipulating industrial robots - Safety, etc.
*2) Labor Safety and Sanitation Law, etc.
Caution
Caution indicates a hazard with a low level of risk, which if not avoided, could result in
minor or moderate injury.
Warning
Warning indicates a hazard with a medium level of risk,
which if not avoided, could result in death or serious injury.
Danger
Danger indicates a hazard with a high level of risk which, if not avoided, will result in
death or serious injury.
Warning
1. The compatibility of the product is the responsibility of the person who designs the equipment or
decides its specifications.
Since the product specified here is used under various operating conditions, its compatibility with specific
equipment must be decided by the person who designs the equipment or decides its specifications based on
necessary analysis and test results. The expected performance and safety assurance of the equipment will be the
responsibility of the person who has determined its compatibility with the product. This person should also
continuously review all specifications of the product referring to its latest catalog information, with a view to giving
due consideration to any possibility of equipment failure when configuring the equipment.
2. Only personnel with appropriate training should operate machinery and equipment.
The product specified here may become unsafe if handled incorrectly.
An operator who is appropriately trained and experienced must perform the assembly, operation and maintenance
of machines or equipment.
3. Do not service or attempt to remove product and machinery/equipment until safety is confirmed.
1. The inspection and maintenance of machinery/equipment should only be performed after measures to prevent
dropping of driven objects or run-away of machinery/equipment have been confirmed.
2. When the product is to be removed, confirm that the safety measures as mentioned above are implemented and
the power from any appropriate source is cut. Read and understand the specific product precautions of all relevant
products carefully.
3. Before machinery/equipment is restarted, take measures to prevent unexpected operation and malfunction.
4. Contact SMC beforehand and take special consideration of safety measures if the product is to be
used in any of the following conditions.
1. Conditions and environments outside of the given specifications, or use outdoors or in a location exposed to direct
sunlight.
2. Installation on equipment in conjunction with atomic energy, railways, air navigation, space, shipping, vehicles,
military, medical treatment, combustion and recreation, or equipment in contact with food and beverages,
emergency stop circuits, clutch and brake circuits in press applications, safety equipment or other applications
unsuitable for the standard specifications described in the product catalog.
3. An application which could have negative effects on people, property, or animals requiring special safety analysis.
4. Use in an interlock circuit, which requires the provision of double interlock for possible failure by using a
mechanical protective function, and periodical checks to confirm proper operation. Check the product regularly in
order to confirm normal operation.
Safety Instructions

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Safety Instructions
Caution
1. The product is provided for use in manufacturing industries.
The product herein described is basically provided for use in manufacturing industries.
If the product is being considered for use in other industries, consult SMC beforehand and exchange specifications
or a contract if necessary.
If anything is unclear, contact your nearest sales branch.
Limited Warranty and Disclaimer/Compliance Requirements
The product used is subject to the following “Limited warranty and Disclaimer” and “Compliance Requirements”.
Read and accept them before using the product.
Limited Warranty and Disclaimer
1. The warranty period of the product is 1 year in service or within 1.5 years after the product is
delivered. *3)
Also, the product may have specified durability, running distance or replacement parts. Please
consult your nearest sales branch.
2. For any failure or damage reported within the warranty period, which is clearly our responsibility,
a replacement product or necessary parts will be provided.
This limited warranty applies only to the SMC product independently, and not to any other damage
incurred due to the failure of the product.
3.Prior to using SMC products, please read and understand the warranty terms and disclaimers noted in
the specified catalog for the particular products.
*3) Vacuum pads are excluded from this 1 year warranty.
A vacuum pad is a consumable part, so it is warranted for a year after it is delivered.
Also, even within the warranty period, the wear of a product due to the use of the vacuum pad
or failure due to the deterioration of rubber material are not covered by the limited warranty.
Compliance Requirements
When the product is exported, strictly follow the laws required by the Ministry of Economy, Trade and
Industry (Foreign Exchange and Foreign Trade Control Law).

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■Explanation of Symbols
Symbol
Definition
Things you must not do.
Instructions are provided as a drawing orsentence next to the symbol.
Things you must do
Instructions are provided as a drawing orsentence next to the symbol.
■Operator
1. This Operation Manual is intended for those who have knowledge of machinery using pneumatic equipment, and
have sufficient knowledge of assembly, operation and maintenance of such equipment.
Only those persons are allowed to perform assembly, operation and maintenance.
2. Read and understand this Operation Manual carefully before assembling, operating or providing maintenance to
the product.

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■Safety Instructions
Warning
Disassembly
prohibited
Do not disassemble, modify (including the replacement of board) or repair other than instructed
in this manual.
Otherwise, an injury or failure can result.
Do not
Do not operate the product outside of the specifications.
Do not use for flammable or harmful fluids.
Fire, malfunction, or damage to the product can result.
Please check the specifications before use.
Do not
Do not use in an atmosphere containing flammable or explosive gases.
Fire or an explosion can result.
The product is not designed to be explosion proof.
Do not
Do not use the product in a place where static electricity is a problem.
Otherwise failure or malfunction of the system can result.
Do not
Do not cut off the power and compressed air supplied to this product while it is operating.
Otherwise it can cause injury due to dropping of workpieces or damage to the system.
Instruction
If using the product in an interlocking circuit
- Provide a double interlocking system, for example a mechanical system.
- Check the product for proper operation.
Otherwise malfunction can result, causing an accident.
Instruction
The following instructions must be followed during maintenance
- Turn off the power supply
- Stop the air supply, exhaust the residual pressure in piping and verify that the air is released
before performing maintenance work.
It may cause an injury.

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Caution
Do not touch
Do not touch the terminals and connectors while the power is on.
Otherwise electric shock, malfunction or damage to the switch can result.
Instruction
Perform sufficient trial run.
Otherwise, injury or damage to the system can result due to suction failure depending on the
conditions of the suction of the workpiece or the pressure switch settings.
Perform sufficient verification before using this product.
Instruction
After maintenance is complete, perform appropriate functional inspections and leak test.
Stop operation if the equipment does not function properly or there is leakage of fluid.
If there is leakage from parts other than the piping, the product might be broken.
Cut off the power supply and stop the fluid supply.
Do not supply fluid if there is leakage.
Safety cannot be assured in the case of an unexpected malfunction.
■Handling Precautions
Follow the instructions given below for selecting and handling of the vacuum unit.
●The instructions on design and selection (installation, wiring, environment, adjustment, operation,
maintenance, etc.) described below must be followed.
Product specifications
- For the compressed air quality, referto JIS B 8392-1 2.4.3 to 2.6.3.
Insufficient air quality may cause operation failure.
If compressed air containing condensate is used, install an air dryer or drain catch before the filter and perform draining
regularly.
If draining is not performed regularly and condensate enters the secondary side, it can cause operating failure of pneumatic
equipment.
When it is difficult to control drainage, the use of a filter with an auto drain is recommended.
- The applicable fluids are air, non-corrosive gas and inert gas.
Do not use a fluid containing chemicals, synthetic oils including organic solvent, salt and corrosive gases.
Otherwise, damage to the vacuum unit and malfunction can result.
Check the details of the specifications before use.
- Use the specified operating pressure.
Otherwise it can cause damage to the vacuum unit or inability to adsorb correctly.
- Reserve a space for maintenance.
Design the system allowing the required space for maintenance.
- Use the specified voltage.
Otherwise failure or malfunction can result.
-Do not exceed the specified maximum allowable load.
Otherwise it can cause damage or shorten the life of the product.
-Design the product to prevent reverse current when the circuit is opened or the product is forced to operate for operational
check.
Reverse current can cause malfunction or damage the product.

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●Product handling
Installation
- Tighten to the specified tightening torque.
If the tightening torque is exceeded, the mounting screws, brackets and the product can be broken. Insufficient torque can
cause displacement of the product from its proper position and loosening of the mounting screws.
- If a commercially available switching power supply is used, be sure to ground the frame ground (FG) terminal.
- Do not drop, hit or apply excessive shock to the product.
Otherwise damage to the internal parts of the product, solenoid valve and internal parts of the pressure switch/sensor can
result, causing malfunction.
- Do not pull the lead wire forcefully, or lift the product by pulling the lead wire. (Tensile strength 35N or less)
Hold the product body when handling to prevent damage, failure or malfunction.
The solenoid valve and the pressure switch/sensor will be damaged, leading to failure and malfunction.
- Eliminate any dust left in the piping by using a blast of air before connecting the piping to the product.
It will cause failure or malfunction.
- Do not insert metal wires or other foreign objects into the pressure port of the pressure sensor.
The pressure sensor may get damaged, leading to failure and malfunction.
- If the fluid may contain foreign matter, install and connect a filter or mist separator to the inlet.
It will cause failure or malfunction.
Wiring (Including connecting/disconnecting of the connectors)
- Do not pull hard on the lead wire, or lift the product by holding the lead wires (Tensile strength 49 N or less). In particular,
never lift the product by the lead wire of the solenoid valve or the pressure switch/sensor when fittings and piping are built in.
Otherwise damage to the solenoid valve orthe internal partsof the pressure switch/sensor can result, causing malfunctionor
causing the connector to come off.
- Avoid repeatedly bending, stretching or applying a heavy object or force to the lead wire.
Repetitive bending stress or tensile stress to the lead wire can cause the sheath of the wire to peel off.
If the lead wire can move, fix it near the body of the product.
The recommended bend radius of the lead wire is 6 times the outside diameter of the sheath, or 33 times the outside
diameter of the insulation material, whichever is larger.
Replace the damaged lead wire with a new one.
- Wire correctly.
Incorrect wiring can cause malfunction or breakage of the solenoid valve or the pressure switch/sensor.
- Do not perform wiring while the power is on.
Otherwise damage to the solenoid valve or the internal parts of the pressure switch/sensor can result, causing malfunction.
- Do not route wires and cables together with power or high voltage cables.
Route the wires (piping) of the solenoid valve or the pressure switch/sensor separately from power or high voltage cables in
order to avoid noise or surge entering the signal line from the power or high voltage line.
- Confirm proper insulation of wiring.
Poor insulation (interference with other circuits, poor insulation between terminals etc.) can apply excessive voltage or
current to the solenoid valve or the pressure sensor/sensor, causing damage.
- Design the system to prevent reverse current when the product is forced to operate for operational check.
Depending on the circuit used, insulation may not be maintained when operation is forced, allowing reverse current to flow,
which can cause malfunction and damage to the solenoid valve or the pressure switch/sensor.
- Keep wiring as short as possible to prevent interference from electromagnetic noise and surge voltage.
Do not use a cable longer than 10 m.
Wire the DC (-) line (solenoid valve: black, pressure switch/sensor: blue) as close as possible to the power supply.

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Operating environment
- Do not use in an environment where corrosive gases, chemicals, sea water, water or steam are present.
These may cause failure or malfunction.
- Do not use the product in a place where the product could be splashed by oil or chemicals.
If the product is to be used in an environment containing oils or chemicals such as coolant or cleaning solvent, even for a
short time, the solenoid valve or pressure switch/sensor may be adversely affected (damage, malfunction, or hardening of
the lead wires).
- Do not use in an area where surges are generated.
When there are machines or equipment that generate large surge near the pressure switch/sensor (magnetic type lifter, high
frequency inductive furnace, motor, etc.), this can result in deterioration and damage of the internal elements. Take measures
against the surge sources, and prevent the lines from coming into close contact.
- Do not use a load which generates surge voltage.
When a surge-generating load such as a relay or solenoid is directly driven, use the product with a surge absorbing element
built-in.
- The product is CE marked, but not immune to lightning strikes, so take measures against lightning strikes. Be aware of
excessive surrounding noise.
The product is CE marked and has passed the EMC test, but excessive noises in the surrounding area may affect the
functioning of the product.
- Mount the product in a location that is not affected by vibration or impact.
It will cause failure or malfunction.
- Do not let foreign matter, such as wire debris, get inside the product.
In order to avoid failure and malfunction, do not let foreign matter, such as wire debris, get inside the product.
- Do not use the product in an environment that is exposed to temperature cycle.
Heat cycles other than ordinary changes in temperature can adversely affect the inside of the product.
- Do not expose the product to direct sunlight.
If using in a location directly exposed to sunlight, protect the product from the sunlight.
Failure or malfunction may occur.
- Keep within the specified operating fluid and ambient temperature range.
The operating fluid and ambient temperature range is 5 to 50oC. Operation under low temperature may lead to damage or
operation failure due to frozen moisture in the fluid or air.
Protection against freezing is necessary. Mounting of an air dryer is recommended for elimination of drainage and water.
Avoid abrupt temperature changes even within the specified temperature range.
- Do not use in a location where the product is exposed to radiant heat from surrounding heat sources.
Insufficient air quality may cause operation failure.
Adjustment and Operation
- Connect a load before turning the power supply on.
If the power supply is turned on with no load, over current may flow, causing the pressure switch/sensor to break instantly.
- Do not short-circuit the load.
An error is displayed when the load of the pressure switch/sensor is short circuited, but over current may flow, causing
damage to the pressure switch.
- Do not press the setting buttons with a sharp pointed object.
This may damage the setting buttons.
- If using the product to detect very small pressures, warm up the product for 10 to 15 minutes first.
There will be a drift on the display of approximately 1% for 10 minutes after the power supply is turned on.
- Perform settings suitable for the operating conditions.
Incorrect setting can cause operation failure.
For details of each setting, refer to the Operation Manual of the pressure switch/sensor.
- Do not touch the LED during operation.
The display can vary due to static electricity.

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Maintenance
- Turn off the power supply, stop the supplied air, exhaust the residual compressed air in the piping and verify the release of air
before performing maintenance.
There is a risk of unexpected malfunction of component.
- Perform regular maintenance and inspections.
There is a risk of unexpected failure of components due to the malfunction of equipment and machinery.
- Perform draining regularly.
If condensate enters the secondary side, it can cause operating failure of pneumatic equipment.
-Do not use solvents such as benzene, thinner etc. to clean the product.
This may damage the surface of the body or erase the markings on the body.
Use a softcloth to removestains. For heavy stains, use a cloth soaked with diluted neutral detergent and fully squeezed, then
wipe up the stains again with a dry cloth.

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Model Indication and How to Order
■Model Indication of the Single Unit
(1) Nozzle size
(2) Body type
Symbol
Body spec.
Port specifications Note 2)
1
Single unit
Common for PV and PD
(PV = PD)
2
Single unit
Separate for PV and PD
（PV ≠PD）
3
Manifold
No distinction
Note 2) Names of the ports and functions are as follows.
PV: Air pressure supply port (Ejector), Vacuum pressure supply port (Vacuum pump system)
PD: Burst pressure supply port (Select the model with a release valve for (4).)
Symbol
Nominal
nozzle
size
Applicable supply valve and
standard supply pressure
Large flow
(N.C.)
Latching
00 Note 1)
―
●
―
03
0.3
●(0.35MPa)
●(0.4MPa)
04
0.4
●(0.35MPa)
●(0.4MPa)
05
0.5
●(0.35MPa)
06
0.6
●(0.5MPa)
Note1) Vacuum pump system only
Vacuum pump system
Ejector system

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(3) Exhaust type
(4) Combinations of the supply valve and the release valve Note 3)
(5) Rated voltage
5
24V DC
6
12V DC
(6) Electrical entry of the supply valve and release valve Note 4)
0
Vacuum pump system
(without silencer)
1
Exhaust through silencer
(Individual exhaust)
2
Exhaust through port
(M5, individual exhaust)
L
L plug connector with lead wire
LO
L plug connector without connector
M
M plug connector
Note 5) with lead wire
MO
M plug connector
Note 5) without connector
Symbol
Supply valve
Release
valve
Applicable body type
Ejector
Pump system
PV＝PD
PV≠PD
PV＝PD
PV≠PD
K1
N.C.
N.C.
●
●
―
●
J1
N.C.
No
●
―
●
―
Q1
Latching
(+ common)
N.C.
●
●
―
―
Q2
Latching
(+ common)
No
●
―
―
―
Vacuum is released through the port to atmosphere for the model without the release valve.
Note 3) Latching type is applicable only to the ejector nozzle sizes 0.3 and 0.4.
Note 4) All with light and surge suppressor. Lead wire length is 300mm.
Note 5) M and MO type connectors cannot be selected for the model with the pressure sensor or the pressure switch for
vacuum.

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(7) Manual override Note 6)
(8) Pressure sensor/ Vacuum pressure switch
Symbol
Type
Pressure range
[kPa]
Specifications
NIL
Without pressure sensor/ vacuum pressure switch
P1
Pressure
sensor
0 to -101
Output 1 to 5V, accuracy +/-2%F.S. or less Note 7)
P3
-100 to 100
Output 1 to 5V, accuracy +/-2%F.S. or less Note 7)
EA
Pressure
switch for
vacuum
0 to -101
NPN2
output
Unit conversion function Note 8)
EAM
Fixed to SI units Note 9)
EAP
Unit conversion function [Initial value PSI] Note 8)
EB
PNP2
output
Unit conversion function Note 8)
EBM
Fixed to SI units Note 9)
EBP
Unit conversion function [Initial value PSI] Note 8)
FA
-100 to 100
NPN2
output
Unit conversion function Note 8)
FAM
Fixed to SI units Note 9)
FAP
Unit conversion function [Initial value PSI] Note 8)
FB
PNP2
output
Unit conversion function Note 8)
FBM
Fixed to SI units Note 9)
FBP
Unit conversion function [Initial value PSI] Note 8)
Note 7) Only the lead wire length 3m is available for the pressure sensor.
Note 8) The unit conversion function is not for use in Japan due to a new measurement law.
Note 9) Fixed unit: kPa
(9) Lead wire with connector for vacuum pressure switch
NIL
Without lead wire with connector
(No need to specify for the pressure sensor)
G
Lead wire with connector and connector cover,
Lead wire length 2m
NIL
Non-locking push type
B
Locking type (Tool required) Semi-standard
Note 6) Latching type (supply valve) has the push-lock type only, but either the push type or the lock type can be selected for
the release valve.

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(10) Vacuum (V) port Note10) Note 11)
C2
Straight type2 One-touch tube fitting
Metric size
C4
Straight type  4 One-touch tube fitting
N1
Straight type  1/8” One-touch tube fitting
Inch size
N3
Straight type  5/32” One-touch tube fitting
L2
Elbow type  2 One-touch tube fitting
Metric size
L4
Elbow type  4 One-touch tube fitting
LN1
Elbow type  1/8” One-touch tube fitting
Inch size
LN3
Elbow type  5/32” One-touch tube fitting
Note 10) The standard filter in this product is a low cost filter. If the product is to be used in a dusty environment, use an air suction
filter (ZFA or ZFB or ZFC series) together in order to avoid clogging of the filter in an earlier stage.
Note 11) Be sure to hold the filter case when connecting and disconnecting the tube for the elbow type.
(11) Options Note 12)
NIL
No options
B
With bracket for single unit
(Enclosed with the product for shipment without being assembled)
K
Screw driver handling type vacuum break needle
Note 12) When multiple options are selected, state them in alphabetical order.

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■Model Indication for Manifold
(1) Number of stations
01
1 station
02
2 stations
…
…
12
12 stations
(2) Pressure sensor/Vacuum pressure switch mountableNote 1)
(3) Common supply pressure (PV) connecting port size
(4) Common vacuum burst pressure (PD) port Note 2)
NIL
Sensor/ switch non-mountable base
S
Sensor/ switch mountable base
Note 1) Select “S” when the model with either the pressure sensor or the pressure switch for vacuum is selected for
how-to-order for the single unit (8).
NIL
Without PD port (PV = PD)
M5
M5×0.8（PV≠PD）
Note 2)Refer to model indication for single unit (4) for the combinations of supply valve and release valve selectable.
01
Rc1/8
01N
NPT1/8
01F
G1/8
M5
M5×0.8

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■Supply Port
Ports areprovided on the left and right sides of themanifold base when looking from the V port side. When it is
used with the air supply only from one side, a plug to close the unused port is necessary.
Purchase a plug suitable for the port size selected, and mount it to the unused port. (e.g. M-5P for M5X0.8)
■Number of Manifold Stations Operable at the Same Time
For the manifold type, the maximum number of stations operable at the same time varies depending on the
nozzle size of the ejector, the supply valve type, port size of the common supply port of the manifold base and
the number of manifold bases connected. Refer to the table below for the appropriate number of stations
operable at the same time and piping to give the full performance of the ejector.
ZB03
ZB04
ZB05
ZB06
Large
flow
(N.C.)
Latching
Large
flow
(N.C.)
Latching
Large
flow
(N.C.)
Large
flow
(N.C.)
Rc1/8
NPT1/8
G1/8
Supply from one side
12
10
12
Supply from both sides
12
M5×0.8
Supply from one side
10
8
10
Supply from both sides
12
10
12
Note) The number of stations shown above is to satisfy the specifications of the ejector performance at the standard supply
pressure.
Note) For a vacuum pump system, there is no limit for the number of stations operated at the same time, but the vacuum pressure
and/or the suction flow can vary as the number of stations increases depending on the vacuum pump capacity.
Supply (PV)
port
Port size
Ejector model
Supply valve type

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Names of Parts of product
■Names of Individual Part
Filter vessel
Filter case
Vacuum (V) port
Release valve
Vacuum break flow adjusting needle
Vacuum break flow needle
Supply valve
Supply valve manual override
Atmospheric vent port
Mounting hole
Common supply (PV)
port
Common release pressure (PD) port
(with PD port)
(on both sides)
(on both sides)
(on both sides)
Silencer cover
Manifold
Single unit
Pressure sensor assembly
Manifold base
Release valve manual override
for release valve
Exhaust port for silencer
Lock nut
Supply (PV) port
Burst pressure (PD) port
(PV PD)
Body

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■Summary of product elements
Output
(OUT1)
Turns on when the switch output (OUT1) is on.
Output
(OUT2)
Turns on when the switch output (OUT2) is on.
LED
Displays the current status of pressure, setting mode and error code.
△button
(UP)
Selects the mode and increases the ON/OFF set value.
Press this button to change to the peak display mode.
▽button
(DOWN)
Selects the mode and decreases the ON/OFF set value.
Press this button to change to the bottom display mode.
S button
(SET)
Press this button to change to either mode and to set a set value.
Lead wire with connector
Connecting terminal
button(DOWN)
Output(OUT1)display(Green)
Output(OUT1)display(Red)
button (SET)
LED display
button(UP)

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Mounting and Installation
Note the following points when mounting and installing the product.
■Common Precautions for Mounting and Installation
(1) It is necessary to perform maintenance and replacement of the suction filter regularly to maintain the proper
operation of the ejector and vacuum pump system. Ensure sufficient space for maintenance work when
installing the product.
(2) The filter case of this product is integrated with the vacuum piping. Secure sufficient space and some length of
the tube with the piping (tubes) on the vacuum side so that the case can be removed.
(3) Do not fix the piping on the vacuum side such that a load is always applied to the filter case in a bending or
pulling direction. This can damage the body and/or the filter case.
(4) If the ejector (silencer exhaust specification) is operated in a dusty environment or if there is dust on the
surface of the workpieces, it can cause clogging of the silencing material as well as the suction filter due to
dust being sucked in. Secure space necessary for the maintenance check and replacement of the silencer
when the ejector performance decreases.
(5) Keep the ambient temperature of the product between -5 and 50oC. In environments such as inside a panel
where heat radiation efficiency is poor, the ambient temperature will rise due to the heat generation of the coil
of the solenoid valve, causing malfunction.
(6) When handling the product, do not lift it by the lead wires or cables of the solenoid valve, pressure sensor or
pressure switch for vacuum. Otherwise, it can cause vacuum leakage or broken wire or damage to the
product.
■Mounting and Installation of Single Unit Ejectors
(1) The tightening torque for mounting the product to the wall should be between 0.075 and 0.096Nm. Using
excessive torque may cause damage to the body. (The width of the product is 10mm.)
(2) Do not block the exhaust port of the ejector. The ejector of the single unit specification has only one exhaust
port on one side. If the ejector is mounted with the exhaust port facing a wall, secure a space of at least 1mm
between the product and the wall using a spacer, shim or equivalent.
At least 1mm
V port
Spacer
(Flat washer,
etc.)
Spacer
(Flat washer, etc.)
V port
Exhaust port

Doc. no. ZB-OM00201-B
- 19 -
(3) Secure the space for connecting piping on the supply side when installing the product.
Mounting with a bracket for single unit (Width of the bracket: 1mm)
Mounting on the wall and the port released to the atmosphere at the bottom
Part No. of the bracket for single unit: ZB1-BK1-A (Provided with 2 mounting screws M2x14 with washer and 2
hexagon nuts M2.)
Recommended tube fittings for the set-up shown above: KQ2H04-M5N, KQ2L04-M5N, KQ2W04-M5N.
16
1
PV port
PD port
KQ2L04-M5N
(11.8)
(11.8)
KQ2H04-M5N
KQ2L04-M5N
KQ2W04-M5N
A