Page 1
BRP-3 Series
Back Pressure / Relief Valves
BRP-3 Series Back
Pressure / Relief Valve
INSTRUCTION MANUAL
Please read this Instruction Manual carefully and thoroughly for
the correct and optimum use of this product.
Kindly keep this manual in a convenient place for quick reference.
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BRP-3 Series
Back Pressure / Relief Valves
Operating company
Responsibilities:
Keep this manual available at the place of operation, also for future use.
Ensure that employees read and observe this manual and other applicable documents,
especially the safety instructions and warnings.
Observe any additional country-specific rules and regulations that relate to the system.
Qualified Personnel
Mechanics Qualification:
Ensure Only Qualified employees with additional training for installation of these products.
Electrical Qualification:
Qualified electrician
Responsibility:
Read, observe and follow this manual and the other applicable documents, especially all
safety instructions and warnings.
General safety instructions
The manufacturer accepts no liability for damages caused by disregarding any of the
documentation.
Intended Use
Ensure the Pressure-Relief/Back Pressure valve material is suitable for the process media.
Please check chemical resistance
Adhere to the operating limits ( Pressure and temperature
limits,
Observe the Process Setting Range
The BPV Series is not suitable for media that contains solids
General Safety Instructions
The manufacturer accepts no liability for damages caused by disregarding any of the
documentation.
Safety-conscious operation
Only operate the fitting if it is in perfect technical condition and only use it as intended, ensuring
that workers are aware of safety and risks, and in adherence to the instructions in this manual.
Ensure that the following safety aspects are observed and monitored:
Statutory or other safety and accident-prevention regulations
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BRP-3 Series
Back Pressure / Relief Valves
Obligations of Personnel
Observe the instructions on the valve and keep them legible, e.g. nameplate, identification
marking for fluid connections.
Only carry out work on the fitting if the following requirements are met:
System is empty
System has been flushed
System is depressurized
System has cooled down
System is secured against being switched back on again
Specific hazards
Hazardous Media
When handling hazardous media (e.g. hot, flammable, explosive, toxic, hazardous to health
or the environment), observe the safety regulations for the handling of hazardous
substances.
Use personal protective equipment when carrying out any work on the valve.
Collect l
with environmental regulations.
eaking pumped liquid and residues in a safe
manner and dispose of in accordance
Operation
Setting Pressure
Presetting from factory is available:
Set the pressure relief valve under the same conditions encountered later during operation!
Recommendation for the setting: Installation of a diaphragm guard before the pressure
valve.
1
2
3
relief
Set pressure (schematic representation)
1 Protection cap
2 Adjustment screw
3 Counter nut
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BRP-3 Series
Back Pressure / Relief Valves
If present, remove protection cap (1) at adjustment screw (2) from the valve.
1.
Undo locknut (3).
2.
3.
Turn adjustment screw
Start up system.
4.
Turn adjustment screw (2) clockwise until desired system pressure is reached.
5.
Fix the adjustment screw (2) using a ring wrench, then tighten the locknut (3).
6.
Adjustment screw can be sealed to prevent unauthorized adjustment, if necessary.
Plug on protection cap (1), if present.
7.
(2) counter-clockwise until the tension
the spring. Valve is open.
on
Valve with directional arrow
Commissioning
Risk of injury and poisoning due to hazardous or hot media.
Use personal protective equipment when carrying out any work on the valve.
WARNING!
WARNING!
Safely collect the media and dispose of it in accordance with environmental regulations.
Risk of injury during disassembly!
Wear protective gloves, components can be very sharpedged due to wear or damage.
Remove components with springs (e.g. pneumatic drive) carefully, since spring tension
can cause components to be ejected.
Direction of flow
1
Removing Valve
1. Ensure that:
System is empty
System has been flushed
System is depressurized
System has cooled down
System is secured against being switched back on again
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BRP-3 Series
Back Pressure / Relief Valves
2. Remove Valve from the pipe.
3. Decontaminate the Valve if required.
Dead space in the valve may still contain medium.
Safety regulations governing the handling of hazardous substances
Applicable standards and guidelines in the country where the pump is operated
Make personal protective equipment available.
Installation
Preparing for installation
Check operating conditions
Risk of poisoning and environmental damage from medium.
Leaks due to impermissible pipework forces.
WARNING!
Ensure that the valve is not subject to any pulling or thrusting forces or bending
moments.
1. Proper Installation of Valve within Piping System
No pulling or thrusting forces
No bending moments
Adjust for changes in length due to temperature changes (compensators, expansion
shanks)
Optional installation position
2. Dimensions ( Data sheet).
Troubleshooting
Risk of injury and poisoning due to hazardous or hot media.
Use personal protective equipment when carrying out any work on the fitting.
WARNING!
Safely collect the media and dispose of it in accordance with environmental regulations.
Error Possible Cause Corrective Action
Fitting leaky at diaphragm
Pressure falls below the
permissible value
Pressure rises above
permissible value
Medium leaks out at
adjustment screw
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Insufficient contact pressure
(diaphragm fastening)
Diaphragms leaky
Fitting installed in backwards
Diaphragms defective
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Retighten screws
Replace diaphragm
Install fitting in correction direction
Direction of flow).
(
Replace diaphragms
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BRP-3 Series
Back Pressure / Relief Valves
Make sure all personnel tasked with work on the fitting have read and understood this
manual and all other applicable documents, especially the safety, maintenance and
repair information, before they start any work.
Organize responsibilities, areas of competence and the supervision of personnel.
The following work should be carried out by specialist technicians only:
Installation, repair and maintenance work
Work on the electrical system
Make sure that trainee personnel only work on the fitting under supervision of specialist
technicians.
Installation
Risk of poisoning and environmental damage from medium.
Leak due to faulty installation.
Installation work on the pipes should only be performed by technicians who have been
WARNING!
specially trained for the pipework in question.
Typical Dosing System Schematic
20
0
1
Injector
TVL Level Display
AL R1 R2
ESC
MENU
100 Series
Level Sensor
BRP3 Series
Back Pressure /
Relief Valve
ENTER
Chemical Container
OBS Series Gauge
with Integral Guard
ProCal Series
Calibration
Cylinder
20
0
1
TKM
SET
OP2
F
FTM
OP1 GPM
GPM
FTM
Flow Meter & Transmitter
CV
SV
PulsePro
System
Pulsation
Dampener
TK Series
Flow Meter
Dosing
Pump
30
40
2
1
3
5
0
0
4
0
60
30
40
2
1
3
5
0
0
4
0
60
5
0
40
60
3
4
2
30
0
1
0
20
1
0
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BRP-3 Series
Back Pressure / Relief Valves
1
2
3
4
5
7
DIMENSIONS
LModel Size D H h G
6
PARTS
No. Part
1 Body 316 SS
2 Bonnet PPG
3 Adjustment Screw
4
5
6
7
Coil Spring
Piston Plunger
Bonnet Bolts
Pcs. Materials
1
1
1
1
1
1
1
Galvanized Steel
PTFE bonded EPDMControl Diaphragm
D
304 SS
PPG
304 SS
BRP3005
BRP3075
BRP3100
BRP3125
BRP3150
BRP3200
½"
¾"
1.0"
1-¼"
1-½"
2"
94
95
121
121
181
181
82
82
107
107
155
155
140
140
160
160
207
207
23
23
26
26
31
31
½"
¾"
1"
1-¼"
1-½"
2"
CV Values
½" (3.9) ¾" (7.4) 1" (8.9) 1¼" (17.1) 1½" (18.8) 2" (21.6)
MAXIMUM PRESSURES PSI
316 SS
Size
½" - 2" 150 150 150 90 30 15
30°C
86°F
50°C
122°F
70°C
158°F
80°C
176°F
90°C
194°F
100°C
212°F
ORDERING EXAMPLE
H
G
h
L
Back Pressure / Relief Valves
Body Material A – 316 SS Diaphrgm – PTFE Teflon® Bonded to EPDM
Size
Ends
005 – ½"
007 – ¾"
010 – 1"
T – Threaded G – G Type Thread
012 – 1-¼"
015
– 1-½"
– 2"
020
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005 T
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