DÖRR EcoFlow LPF P User manual

MRE00004EN, V04
N26010101
www.durr.com
Operation manual
EcoFlow LPF P
Low Pressure Regulator Flow

Information about the document
This document describes the correct han-
dling of the product.
nRead the document prior to every activity.
nPrepare the document for the application.
nPass on the product only together with
the complete documentation.
nAlways follow safety instructions, han-
dling instructions and specifications of
every kind.
nIllustrations can deviate from the tech-
nical construction.
Validity range of the document
This document describes the following prod-
ucts:
N26010101
EcoFlow LPF P 7 2.5
G1/8'' SST
Hotline and Contact
If you have queries or would like technical
information, please contact your dealer or
sales partner.
07/2020EcoFlow LPF P - MRE00004EN2/28

TABLE OF CONTENTS
1 Product overview.......................... 4
1.1 Overview................................ 4
1.2 Short description.................... 4
2 Safety............................................. 4
2.1 Presentation of Notes............. 4
2.2 Intended Use.......................... 5
2.3 Residual risks......................... 6
2.4 Property damage.................... 6
2.5 Staff qualification.................... 6
2.6 Personal protective equip-
ment....................................... 7
3 Transport, scope of supply and
storage........................................... 8
3.1 Transport................................ 8
3.2 Unpacking.............................. 8
3.3 Scope of delivery.................... 8
3.4 Handling of
packaging material................. 8
3.5 Storage................................... 8
4 Assembly....................................... 8
4.1 Requirements for the
Installation point..................... 8
4.2 Assembly................................ 9
5 Commissioning........................... 10
5.1 Safety Instructions................ 10
5.2 Commissioning..................... 11
6 Operation..................................... 12
6.1 Safety recommendations...... 12
6.2 Rinsing................................. 12
6.3 Relieving pressure................ 13
7 Cleaning....................................... 13
7.1 Safety recommendations ..... 13
7.2 Cleaning............................... 14
8 Maintenance................................ 15
8.1 Safety recommendations...... 15
8.2 Maintenance schedule......... 17
8.3 Dismantling........................... 17
8.4 Assembly.............................. 19
9 Faults............................................ 20
9.1 Defects table........................ 20
10 Disassembly and Disposal......... 21
10.1 Safety recommendations.... 21
10.2 Disassembly....................... 21
10.3 Disposal ............................. 22
11 Technical data............................. 22
11.1 Dimensions and weight...... 22
11.2 Connections........................ 22
11.3 Operating conditions........... 23
11.4 Emissions........................... 23
11.5 Operating values................ 23
11.6 Compressed air quality....... 23
11.7 Type plate........................... 23
11.8 Materials used.................... 23
11.9 Operating and auxiliary
materials............................. 23
11.10 Material specification........... 24
12 Replacement parts, tools and
accessories.................................. 24
12.1 Replacement parts............. 24
12.2 Tools................................... 25
12.3 Accessories........................ 25
12.4 Order.................................. 26
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1 Product overview
1.1 Overview
Fig. 1: Product overview
1 Connection for control air
2 Leakage connection
3 Material outlet
4 Material inlet
5 Housing cover
6 Spacer ring with membranes
7 Regulator housing
1.2 Short description
The low pressure controller (hereafter called
“Regulator”) reduces the pressure in the
supply line of an application system by
means of the control air to the required mate-
rial pressure. It protects the downstream
devices from pressure surges and pulsa-
tions.
2 Safety
2.1 Presentation of Notes
The following notes can appear in this
instruction:
DANGER!
High risk situation that can lead to serious
injuries or death.
Product overview
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WARNING!
Medium risk situation that can lead to
serious injuries or death.
CAUTION!
Low risk situations that can lead to minor
injuries.
NOTICE!
Situations that can lead to material
damage.
ENVIRONMENT!
Situations that can lead to environmental
damage.
Additional information and recom-
mendations.
2.2 Intended Use
Use
The low pressure controller EcoFlow LPF
serves exclusively for material pressure reg-
ulation in the supply line of application sys-
tems.
The low pressure controller is approved for
use in explosive areas of Ex zones 1 and 2.
The low pressure controller for fluids
does not fall in one of the categories
I- IV of the pressure devices guide-
lines. The low pressure controller is
designed and manufactured as
specified in article 3 para 3 of
97/23/EC from 2016 onwards in
article 4 para 3 of 2014/68/EU.
Misuse
If used improperly, it can cause serious inju-
ries.
Examples of wrong use are:
nUse in explosive areas Ex zone 0
nUse of unapproved materials
nMaking conversions or changes on your
own
EX labeling
II 2G Ex h IIA T6 Gb X
II - Device group II: all areas except
mining
2G - Device category: 2 (for gaseous
atmosphere)
h - Ignition protection category for non-
electrical devices
IIA - Explosion group
T6 - Temperature class
Gb - Device category and device protec-
tion level: Gb (zone 1)
X - Restriction: The device is configured
for operation in an ambient tempera-
ture of 15°C to 40°C.
Safety
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2.3 Residual risks
Explosion
Sparks, open flames and hot surfaces can
cause explosions in explosive atmospheres.
Serious injury and death could be the conse-
quence.
nBefore carrying out any work on the
product, ensure a non-explosive atmos-
phere.
nDo not use sources of ignition and open
light.
nDo not smoke.
nGround the product.
nWear suitable protective equipment.
Flammable coating materials and their deter-
gents and cleaning agents can cause a fire
or an explosion.
nEnsure that the flashpoint of the fluid is at
least 15K above the ambient tempera-
ture.
nObserve explosion group of the coating
materials and their detergents and
cleaning agents.
nFollow the safety data sheet.
nEnsure that technical ventilation and fire
protection equipment are in operation.
nDo not use sources of ignition and open
light.
nDo not smoke.
nGround the product.
nWear suitable protective equipment.
Danger due to escaping material
Material escaping under pressure can cause
serious injuries.
Before the product:
nSwitch off the system.
nDisconnect the system from energy and
material supply.
nDepressurize the lines.
nSecure the system against switching on
again.
2.4 Property damage
Hardening material
If the material in the product hardens, the
product will be damaged or destroyed.
n1K material: Note curing time Ä 11.10
“Material specification”
n2K material: Observe pot time Ä 11.10
“Material specification”
nPurge product Ä 6.2 “Rinsing”, e.g. in the
case of:
– Production interruptions
– Production end
2.5 Staff qualification
WARNING!
Inadequate qualification
Wrong estimation of dangers can cause
serious injury or death.
nOnly sufficiently qualified persons may
execute all work.
nSome work requires additional qualifi-
cation. Additional qualifications of spe-
cialized personnel are marked with a
“+”.
This document is intended for qualified per-
sonnel in industry and craftmanship.
Cleaning staff
The cleaning staff receives regular instruc-
tions from the operator about the following
contents:
nUsing the product
nHandling cleaning tools
nHandling cleaning agents
nTechnical Measures for occupational
safety and health
Electrician
Electricians assemble, install, service and
repair electrical systems in a professional
manner.
Safety
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Furthermore, electrical engineers have the
following knowledge:
nGuidelines, Standards and Rules of Engi-
neering
nLocal conditions
nElectrical Systems and Their Loading
Limits
nTechnical Measures for occupational
safety and health
Mechanic
The mechanic is trained specifically for the
field of work in which he works.
Furthermore, he has the following knowl-
edge:
nGuidelines, Standards and Rules of Engi-
neering
nLocal conditions
nTechnical Measures for occupational
safety and health
The mechanic is responsible for the following
activities on equipment and components:
nAssembly
nWaiting
nMaintenance
nDisassembly
+ additional qualification explosion pro
tection
In addition to the knowledge of the various
specialist fields, the mechanic has knowl-
edge of regulations and safety measures
when working in potentially explosive areas.
Dürr Systems offers special product training
for Ä “Hotline and Contact”.
2.6 Personal protective equipment
When working in explosive areas, the protec-
tive clothing, including gloves, must meet the
requirements of DIN EN 1149-5. Footwear
must meet the requirements of EN ISO
20344 and EN IEC 61340-4-3. The volume
resistivity must not exceed 100MΩ.
Wear the specified personal protective
equipment when working. Provide the fol-
lowing personal protective equipment:
Eye protection
Protects eyes from dust, paint drops
and particles.
Protective gloves
Protect the hands from:
nmechanical forces
nThermal forces
nChemical effects
Protective workwear
Tight fitting workwear with low tear
strength, tight sleeves and no
hanging parts.
Respirator mask
Protects from hazardous gases,
vapors, dust and similar materials
and media.
Safety boots
Protect feet from crushing, falling
items and slipping.
Use ear protection
Protects from auditory damage due
to noise.
Safety
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3 Transport, scope of supply
and storage
3.1 Transport
NOTICE!
Incorrect Transport
Incorrect Transport can cause property
damage.
nProtect Regulator from moisture.
nProtect Regulator from vibrations.
nProtect Regulator from falling down.
nTransport temperature: -30°C to 60°C
3.2 Unpacking
DANGER!
Electrostatically charged plastic films
and foils in potentially explosive areas
The foil and the product can charge elec-
trostatically at the time of the unpacking.
Electrostatic discharge can cause sparks
that in explosive atmosphere can cause a
fire or an explosion. Serious injury and
death could be the consequence.
nUnpack product outside Ex zones.
nDischarge the product.
nDispose packaging outside of the Ex
zone in accordance with the regulation
or store properly for a later return.
3.3 Scope of delivery
The scope of supply includes the following
components:
nRegulator
Inspect delivery on receipt for completeness
and integrity.
Report defects immediately Ä “Hotline and
Contact”.
3.4 Handling of packaging material
ENVIRONMENT!
Incorrect disposal
Incorrectly disposed packaging material
can damage environment.
nDispose of material no longer required
in an environment-friendly manner.
nObserve local disposal specifications.
3.5 Storage
Storage provisions:
nDo not store outdoors.
nStore Regulator only when dry.
nStore in a dust-free place.
nDo not expose to aggressive media.
nProtect from solar radiation.
nAvoid mechanical vibrations.
nTemperature: 10°C to 40°C
nRelative humidity: 35% to 90%
4 Assembly
4.1 Requirements for the
Installation point.
nThe control air supply to the regulator
must allow to be disconnected and
secured from being switched on again. It
must be possible to close the lines
upstream of the regulator.
nThe control air must be controllable.
nLines, seals and screw connections must
be designed to conform to the require-
ments of the regulator Ä 11.5 “Operating
values”.
nThe regulator must be permanently fixed.
nThe regulator must be grounded.
nA safety distance of 0.25cm/kV from the
high voltage must be kept.
Transport, scope of supply and storage
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4.2 Assembly
Fig. 2: Assembly drawing (example)
Personnel:
nMechanic
n + additional qualification explosion pro-
tection
Protective equipment:
nProtective workwear
nEye protection
nProtective gloves
nSafety boots
Observe the following at assembly:
nEnsure a non-explosive atmosphere.
nInstall the regulator before the applicator.
nAlignment: Lid on top, regulator housing
at bottom
nFlow direction
nProvide shut off valves (1).
nEnsure pressure monitoring. Install pres-
sure gage if necessary.
nIf necessary, install filter before the regu-
lator.
nProvide pressure switch (3) if necessary.
The pressure switch is integrated in the
control. In the event of leakage, the pres-
sure switch issues a pressure message to
the control system. In the event of
leakage, the control system switches the
system off.
nObserve maximum tightening torque for
all screw connections.
nVibrations in the pipelines can cause
screw connections to come off loose.
1. Fit regulator (6) into the pipeline.
2. Screw cap nut of material supply line (7)
to the material inlet.
3. Tighten cap nut of material outflow pipe
(2) to material outlet.
4. Connect transparent hose (4) to leakage
connection.
5. Connect control air (5) Ä 11.5 “Operating
values”.
Assembly
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Ground the regulator
Personnel:
nElectrician
n + additional qualification explosion pro-
tection
Protective equipment:
nProtective workwear
nSafety boots
1. Ground the regulator (6) via the material
connection lines.
5 Commissioning
5.1 Safety Instructions
WARNING!
Danger from harmful or irritant sub
stances
Serious injuries or death can result if you
come into contact with dangerous fluids or
steam.
nRegulator Check regularly for leakage.
Observe local regulations and mainte-
nance schedule.
nEnsure that the forced ventilation is
operational.
nFollow the safety data sheet.
nWear specified protective clothing.
nAvoid contact (e.g. with eyes, skin).
WARNING!
Squirting material
Escaping compressed material can cause
serious injury.
nCheck the product for leakage before
commissioning.
nPut the product into operation only if
the connections are made professio-
nally.
WARNING!
Sparks due to electrostatic discharge
If the regulator is not grounded, there can
be an electrostatic charge on the the regu-
lator. Electrostatic discharge can cause
sparks that in explosive atmosphere can
cause a fire or an explosion. Serious injury
and death could be the consequence.
nGround Regulator as specified.
nBefore carrying out any work, make
sure that there is no explosive atmos-
phere.
NOTICE!
Material damage due to dry run
If the regulator is operated without mate-
rial, it wears out faster.
nAlways operate a regulator with mate-
rial.
Commissioning
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NOTICE!
Material damage due to unsuitable pipe
conections
The piepeline or a bracket supports the
regulator. A loose pipeline can make the
regulator vibrate during operation. It ca
nloosen screw connections. Paint or sol-
vent can leak out. This results in property
damage.
nDimension the lines to conform to the
regulator requirements .
nIf necessary, support the regulator by
using a bracket Ä 12.3 “Accessories”.
5.2 Commissioning
The regulator is commissioned along
with the system.
Personnel:
nMechanic
n + additional qualification explosion pro-
tection
Protective equipment:
nProtective gloves
nSafety boots
nUse ear protection
nProtective workwear
Requirements:
nRegulator is properly assembled Ä 4.2
“Assembly”.
nRegulator connections are properly
assembled Ä 4.2 “Assembly”.
nScrew connections have been tightened.
nLeakage test has been conducted.
1. Set control air pressure to 0bar.
2. Adjust the input pressure of the medium.
The difference between input
pressure and regulated pressure
must not exceed 7bar. Higher
pressure differences may cause
premature wear of the sealing
seat of the regulator.
3. Slowly open ball valves in the supply
lines.
4. Place collecting tray beneath the sam-
pling point.
5. Open the sampling point.
6. Increase control air pressure slowly until
material starts flowing.
7. Leave the sampling point opened until the
material escapes without air.
8. Increase control air pressure, based on
the following characteristic curve until the
required material pressure is reached.
Characteristic curve of the outflow rate
Fig. 3: Characteristic curve of the outflow
rate
Control air pressure
Work area
Dynamic pressure
Commissioning
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Specifications of the characteristic curve:
nShield: 1mm
nMaterial: Mobil DTE 24
nViscosity: 32mPa S
nMedia input pressure: 7 bar
6 Operation
6.1 Safety recommendations
WARNING!
Sparks due to electrostatic discharge
If the grounding cable is removed during
operation, it can cause electrostatic induc-
tion. Electrostatic discharge can cause
sparks that in explosive atmosphere can
cause a fire or an explosion. Serious injury
and death could be the consequence.
nDo not remove grounding cable during
operation.
WARNING!
Risk of injury due to escaping material
and compressed air
Escaping compressed material can cause
serious injury.
Before carrying out any work:
nDisconnect the system, in which the
regulator is installed, from compressed
air and material supply.
nSecure the system against being
switched on again.
nDepressurize the lines.
NOTICE!
Hardening material
If the material in the product hardens, the
product will be damaged or destroyed.
nNote curing time. Ä 11.10 “Material
specification”
nRinse product Ä 6.2 “Rinsing”e.g. for:
– Production interruptions
– Production end
6.2 Rinsing
Personnel:
nMechanic
n + additional qualification explosion pro-
tection
Protective equipment:
nProtective workwear
nEye protection
nSafety boots
NOTICE!
Material damage due to unsuitable
rinsing agent
If the rinsing agent reacts chemically with
the components or the material, compo-
nents get damaged.
nUse only the rinsing agents that are
compatible with the components and
the material.
nRefer to safety data sheet of material
manufacturer.
Operation
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The regulator must be rinsed.
nAfter end of work
nBefore every change of material
nPrior to cleaning
nPrior to dismantling
nBefore a long time of non-use
nBefore placing in storage
Rinsing intervals depend on the
material used.
1. Rinse regulator with low pressure. Pos-
sibly. Use rinsing equipment.
6.3 Relieving pressure
Personnel:
nMechanic
n + additional qualification explosion pro-
tection
Protective equipment:
nProtective gloves
nSafety boots
nUse ear protection
nProtective workwear
1. Rinse regulator Ä 6.2 “Rinsing”.
2. Close the ball valve on the material
supply line.
ðSecure ball valve against reconnection
while working on it.
3. Open the sampling point.
4. Set control air pressure to 5 to 6bar.
ðThe regulator opens. Pressure relief in
the system takes place.
5. Set control air pressure to 0bar.
ðThe regulator closes. The system is
now depressurized.
6. Disassemble regulator Ä 10.2 “Disas-
sembly”.
7 Cleaning
7.1 Safety recommendations
WARNING!
Danger of fire and explosion
Flammable coating materials and their
detergents and cleaning agents can cause
a fire or an explosion.
nEnsure that the flashpoint of the fluid is
at least 15K above the ambient tem-
perature.
nOnly electrically conductive containers
may be used for the cleaning fluid.
Containers must be grounded.
nNote explosion group of the fluid.
nFollow the safety data sheet.
nEnsure that forced ventilation and fire
protection equipment are in operation.
nDo not use sources of ignition and
open light.
nDo not smoke.
nGround Regulator.
Cleaning
07/2020 EcoFlow LPF P - MRE00004EN 13/28

WARNING!
Danger from harmful or irritant sub
stances
Serious injuries or death can result if you
come into contact with dangerous fluids or
steam.
nRegulator Check regularly for leakage.
Observe local regulations and mainte-
nance schedule.
nEnsure that the forced ventilation is
operational.
nFollow the safety data sheet.
nWear specified protective clothing.
nAvoid contact (e.g. with eyes, skin).
NOTICE!
Unsuitable cleaning agents
Unsuitable cleaning agents can damage
the product.
nOnly use cleaning agents approved by
the material manufacturer.
nFollow safety data sheets.
nPlace heavily soiled components in a
cleaning bath.
– Only place those parts in the
cleaning bath, which are suitable for
the cleaning bath.
– Use only electrically conductive
containers.
– Ground the container.
– Do not use ultrasound baths.
NOTICE!
Unsuitable Cleaning Tools
Unsuitable cleaning tools can cause
damage.
nOnly use cloths, soft brushes and
paintbrushes.
nDo not use abrasive cleaning tools.
nDo not use compressed air for
cleaning.
nDo not use any thinner spray guns.
nDo not use high pressure for cleaning
agents.
7.2 Cleaning
Personnel:
nCleaning staff
n + additional qualification explosion pro-
tection
Protective equipment:
nProtective workwear
nRespirator mask
nEye protection
nProtective gloves
nSafety boots
Requirements:
nRegulator has been purged Ä 6.2
“Rinsing”
nSystem has been depressurized Ä 6.3
“Relieving pressure”.
1. Clean the regulator carefully using a
piece of cloth.
Cleaning
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8 Maintenance
8.1 Safety recommendations
WARNING!
Unsuitable tools in explosive areas
Tools that do not have Ex approval can
generate sparks and cause a fire or an
explosion in Ex zones. It can cause
serious injuries or death.
nIf possible, carry out cleaning and
maintenance work outside the Ex
zones.
nFor work within the Ex zone, use tools
with the corresponding Ex labeling.
WARNING!
Risk of injury due to escaping material
and compressed air
Escaping compressed material can cause
serious injury.
Before carrying out any work:
nDisconnect the system, in which the
regulator is installed, from compressed
air and material supply.
nSecure the system against being
switched on again.
nDepressurize the lines.
WARNING!
Sparks due to electrostatic discharge
If the regulator is not grounded, there can
be an electrostatic charge on the the regu-
lator. Electrostatic discharge can cause
sparks that in explosive atmosphere can
cause a fire or an explosion. Serious injury
and death could be the consequence.
nGround Regulator as specified.
nBefore carrying out any work, make
sure that there is no explosive atmos-
phere.
WARNING!
Danger from harmful or irritant sub
stances
Serious injuries or death can result if you
come into contact with dangerous fluids or
steam.
nRegulator Check regularly for leakage.
Observe local regulations and mainte-
nance schedule.
nEnsure that the forced ventilation is
operational.
nFollow the safety data sheet.
nWear specified protective clothing.
nAvoid contact (e.g. with eyes, skin).
Maintenance
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WARNING!
Danger of fire and explosion
Flammable coating materials and their
detergents and cleaning agents can cause
a fire or an explosion.
nEnsure that the flashpoint of the fluid is
at least 15K above the ambient tem-
perature.
nOnly electrically conductive containers
may be used for the cleaning fluid.
Containers must be grounded.
nNote explosion group of the fluid.
nFollow the safety data sheet.
nEnsure that forced ventilation and fire
protection equipment are in operation.
nDo not use sources of ignition and
open light.
nDo not smoke.
nGround Regulator.
WARNING!
Unsuitable replacement parts in explo
sive areas
Replacement parts not compliant with the
specifications of the ATEX guidelines can
cause explosions in an explosive atmos-
phere. Serious injury and death could be
the consequence.
nUse exclusively original replacement
parts.
NOTICE!
Damage due to improper maintenance
work
Carrying out maintenance work that is not
described in this instructions manual can
result in errors in assembly and cause
material damage.
nOnly carry out work mentioned in this
instructions manual.
NOTICE!
Material damage due to worn out com
ponents
Worn out components can damage the
product.
nObserve the maintenance intervals
Ä 8.2 “Maintenance schedule”.
ENVIRONMENT!
Environmental damage caused by
improper handling
Leaked out operating and auxiliary mate-
rials are a threat to the environment.
nUse suitable collector trays during
servicing and maintenance work.
nDispose of operating and auxiliary
materials according to the disposal pro-
visions in force.
nIn case of doubt, refer to the local dis-
posal authorities.
Maintenance
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8.2 Maintenance schedule
If a maintenance assistant is used in the system visualizer, the maintenance intervals of
the maintenance assistant are valid.
The maintenance intervals given below are based on experiential values. Adjust maintenance
intervals individually if necessary.
Interval Maintenance work
weekly Check condition and tightness of the regulator, the connections and lines.
Check air leak and leakage of liquids.
monthly Clean Ä 7.2 “Cleaning”.
semi-annually Check membrane package (7), O-ring (10), sealing ring (9 and 14), ball
(11) and spring (12), and replace if defective Ä 8.3 “Dismantling”.
annually Check screw connections.
Check fastening.
every 2 years Check custom fitting (13) and membrane (5), and replace if defective
Ä 8.3 “Dismantling”.
8.3 Dismantling
Personnel:
nMechanic
n + additional qualification explosion pro-
tection
Protective equipment:
nEye protection
nProtective workwear
nProtective gloves
nSafety boots
Requirements:
nRegulator has been purged Ä 6.2
“Rinsing”.
nRegulator has been disassembled Ä 10.2
“Disassembly”.
You must dismantle the regulator to be able
to perform maintenance work and to replace
components. The requirement is a clean
working place in a workshop.
Maintenance
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Fig. 4: Exploded view
Molykote TP-42
Klüber Syntheso GLEP 1
1. Remove sealing ring (9) from regulator
housing (8).
2. Clamp the regulator with the control side
(A) upward into a vise.
Use protective jaws.
3. Mark housing with a line.
Use line as reference at
assembly. This will ensure all
connections are aligned correctly.
4. Loosen cheese-head screws with a hex-
agon socket (1).
5. Remove housing lid (2).
6. Loosen nut (3).
nHold membrane package (7) with a
hexagonal socket.
nLoosen nut (3) with an open-end
wrench.
7. Mark the top side of the membrane (5).
8. Remove spacer (4), membrane (5),
spacer ring (6) and membrane package
(7).
9. Remove regulator from the vise. Clamp it
again with the material side (B) facing
upwards.
10. Loosen the custom nipple (13).
11. Remove spring (12), ball (11), O-ring
(10) and sealing rings (9, 14).
12. Clean and check all components.
Replace, if damaged. Replace seals.
Maintenance
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8.4 Assembly
Lubricate threads and seals before
assembly.
Personnel:
nMechanic
n + additional qualification explosion pro-
tection
Protective equipment:
nProtective workwear
nEye protection
nProtective gloves
nSafety boots
1. Clamp regulator housing (8) with the
material side (B) upwards into a vise.
Use protective jaws.
2. Lightly grease the new O-ring (10). Insert
into the regulator housing (8).
3. Insert ball (11) into the regulator housing
(8).
4. Lightly grease spring (12). Insert into the
custom fitting (13).
5. Screw custom fitting (13) onto the regu-
lator housing (8).
nTightening torque: 7Nm
6. Remove regulator from the vise. Clamp it
again with the control side (B) facing up.
7. NOTICE!
If the alignment is wrong, the mem-
brane will be damaged.
For the assembly of the regulator, it is
recommended to use the auxiliary tool
(material number W02020048) Ä 12.3
“Accessories”.
Place membrane package (7) onto the
auxiliary tool.
8. Put on the spacer ring (6).
9. Check membrane (5) for damage.
Replace if necessary.
If the membrane is not replaced,
assembly the membrane again
with the marking upward. The
membrane has been stretched
out on one side during operation.
10. Put on the top membrane (5).
11. NOTICE!
If the alignment is wrong, the mem-
brane will be damaged.
Place the spacer (4) with the rounded
side facing down onto the membrane
package (7).
12. Screw the nut (3) onto the membrane
package (7).
nTightening torque: 8Nm
nHold membrane package (7) with a
hexagonal socket.
nTighten the nut (3) with an open-end
wrench.
13. Remove the auxiliary tool.
NOTICE!
Particles on the membrane damage it.
14. Place the pre-assembled assembly onto
the regulator housing (8).
15. Place housing lid (2) onto the top mem-
brane (5).
Maintenance
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16. Tighten the cheese-head screws (1) in a
crosswise sequence.
nTightening torque: 8Nm
17. Lightly grease sealing ring (9). Insert
into the regulator housing (8).
18. Lightly grease sealing ring (14). Insert
into the custom fitting (13).
Test the tightness and proper opera-
tion prior to recommissioning.
9 Faults
9.1 Defects table
For troubleshooting you have to (partly) dismantle the regulator Ä 8.3 “Dismantling”. If faults
cannot be remedied: Ä “Hotline and Contact”.
Fault description Cause Remedy
Poor regulation Ball, O-ring or compression
spring are worn out
Replace ball, O-ring and com-
pression spring.
Membrane damaged Replace membrane.
Metal membrane chuck is
damaged
nReplace the membrane
chuck.
nCheck membrane for damage.
nIf membrane is damaged,
replace membrane.
Compression spring broken Replace compression spring.
Air supply fluctuates. Check air regulation. Repair if
necessary.
Air leaks from the leakage
connection or between
housing and lid
Membrane damaged Replace membrane.
Scoring in lid or spacer ring Replace lid or spacer ring.
Material leaks from housing Membrane damaged Replace membrane.
Spacer incorrectly assem-
bled
Reassemble spacer.
Cheese-head screws tight-
ened with incorrect torque
Tighten cheese-head screws with
the correct torque.
Whistling sound from regu-
lator.
Regulator set incorrectly nChecking pressure settings.
nChange parameters.
Faults
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