AWG PN16 Installation instructions

ORIGINAL OPERATING MANUAL
© AWG Fittings GmbH . Bergstraße 25 . D-89177 Ballendorf . [email protected] . www.awg-fittings.com
B-PRESSURE VALVES PN16, DIN 14381
B PRESSURE VALVES PN 16
B PRESSURE VALVES "SERVO" PN 25
Shut-off device for pressure out-
lets of centrifugal fire pumps
(FPN/PFPN).

AWG I Operating manual I Valves I B pressure valves FOREWORD
2 / 21 M1125B10 I Rev. 01-03/22
FOREWORD
Applicable standards and regulations
The AWG B pressure valves were designed and manufactured accord-
ing to the relevant provisions of these directives and harmonised stand-
ards or is based on this directive, depending on the series:
DIN 14381:2017-04
Fire fighting and fire protection - Pressure valve type B PN 16 - Self-
locking
Conversions and modifications
Unauthorised conversions or modifications to the B pressure valves are
prohibited without written consent from the manufacturer.
AWG Fittings GmbH accepts no liability for damage caused by conver-
sions or modifications, improper handling by the customer or by third
parties commissioned by the customer, or caused by non-compliance
with these instructions.
Other relevant documents
Apart from this manual, no other applicable documents are required for
the safe handling of the AWG B pressure valves.
The data sheet for this device can be downloaded for information pur-
poses from the Internet: www.awg-fittings.com
Copyright
These operating instructions are valid for the following devices:
AWG B pressure valves PN16, AWG B pressure valves "Servo" PN 25
© AWG Fittings GmbH – Revision: 01 – 28.
03. 2022
All rights to this document are reserved by AWG Fittings GmbH.
This document may not be copied or reproduced in whole or in part with-
out the written permission of AWG Fittings GmbH. The document is in-
tended for persons using the device described and must not be passed
on to third parties.
Subject to technical changes and errors.
These instructions and the applicable documents are not subject to any
automatic change service. The latest version can be obtained from the
manufacturer.

AWG I Operating manual I Valves I B pressure valves CONTENT
M1125B10 I Rev. 01-03/22 3 / 21
CONTENTS
FOREWORD.........................................................................................2
CONTENTS ..........................................................................................3
1Introduction .................................................................................4
1.1 Key to the symbols...............................................................4
1.2 Figures .................................................................................5
2Safety information.......................................................................6
2.1 General safety instructions ..................................................6
2.2 Safety during operation........................................................6
2.3 Qualifications of the operators .............................................7
2.4 Personal protective equipment ............................................7
3Description...................................................................................7
3.1 Function ...............................................................................7
3.2 Intended use ........................................................................8
3.3 Foreseeable misuse ............................................................8
3.4 Characteristic values ...........................................................9
3.5 Overview ..............................................................................9
4Delivery ......................................................................................10
5Use..............................................................................................11
5.1 Notes..................................................................................11
5.2 Handling.............................................................................12
5.3 After every use...................................................................13
6Functional test...........................................................................14
6.1 Prerequisites ......................................................................14
6.2 Performing the inspection ..................................................15
7Maintenance...............................................................................16
7.1 Inspection and maintenance..............................................16
7.2 Repair ................................................................................17
7.3 Disposal .............................................................................19
8Accessories / spare parts.........................................................20

AWG I Operating manual I Valves I B pressure valves INTRODUCTION
4 / 21 M1125B10 I Rev. 01-03/22
1 INTRODUCTION
This manual contains important information regarding your personal
safety. This manual must be read and understood by all persons who
handle or use the device during any phase of its life cycle.
The manual must be close at hand at the place of use throughout the
device's life cycle. All persons handling the device must be able to con-
sult the manual at any time. The manual must be handed over along
with the device when the device is sold.
1.1 Key to the symbols
This check mark indicates a prerequisite that must be fulfilled before
a task can be carried out.
1. These numbered items list all the steps making up a task.
1.1.1 Safety information
DANGER
Red signal bar and the signal word DANGER
Hazard with a high degree of risk, resulting in death or serious injury
if not avoided.
WARNING
Orange signal bar and the signal word WARNING
Hazard with a high degree of risk that may result in death or serious
injury if not avoided.
CAUTION
Yellow signal bar and the signal word CAUTION
Hazard with a low degree of risk that may result in minor injuries if not
avoided.

AWG I Operating manual I Valves I B pressure valves INTRODUCTION
M1125B10 I Rev. 01-03/22 5 / 21
1.1.2 General information
IMPORTANT
Blue signal bar and the signal word IMPORTANT
Instructions on how to avoid damage to property. These instructions
are not related to potential physical injuries.
INFORMATION
This info box contains general information and tips for using
the device.
1.2 Figures
The illustrations in this manual are given by way of example. Differences
between a technical illustration and the actual state of affairs are there-
fore possible.
The text contains a reference to an illustration with the item number in
brackets: (Fig. 2/4) refers to Item 4in Figure 2.

AWG I Operating manual I Valves I B pressure valves SAFETY INFORMATION
6 / 21 M1125B10 I Rev. 01-03/22
2 SAFETY INFORMATION
The AWG B pressure valves described here are in line with the state of
the art as well as the recognised safety regulations. The safety and
health protection requirements have been met. Nevertheless, their use
may give rise to hazards for the user or third parties or cause damage
to the device itself or other material assets.
2.1 General safety instructions
The device may only be operated in accordance with these instruc-
tions and in perfect condition.
The operators must have received the necessary training to be able
to handle the device properly.
Unauthorised modifications or the installation of additional compo-
nents not approved by the manufacturer endanger the proper func-
tioning of the device.
– Modifications to the device are prohibited
– Only use accessories approved by the manufacturer
The operator is responsible for safety in the vicinity of the device, in
particular for compliance with the general safety regulations. This in-
cludes ensuring, before using the device, that all protective devices
are fully in place and functional.
2.2 Safety during operation
Observe all safety rules and protective measures applicable for use
at the place of use.
Make sure the device does not get damaged during transport, instal-
lation, commissioning, operation or maintenance.
The safety regulations laid down in the country-specific service reg-
ulations for fire-fighters (for example in Germany the Feuerwehr-
dienstvorschrift FwDV) or the corresponding internal company regu-
lations must be observed.

AWG I Operating manual I Valves I B pressure valves SAFETY INFORMATION
M1125B10 I Rev. 01-03/22 7 / 21
2.3 Qualifications of the operators
Persons handling or using the pressure valve must be technically quali-
fied and trained. They must be aware of all risks involved in handling the
device.
The pressure valve may only be used by persons who have been trained
and instructed in the operation of the device in accordance with the
country-specific fire service regulation (in Germany: FwDV) or corre-
sponding internal company regulations.
Different qualifications are required for personnel performing the differ-
ent types of activity.
Instructed personnel:
Transport / use / cleaning as well as "Basic" functional testing
Technical personnel:
Maintenance as well as "Standard" and "Advanced" functional testing
2.4 Personal protective equipment
When using the AWG B pressure valves, personal protective equipment
must be worn, in accordance with the country-specific fire service regu-
lation (e.g. in Germany: FwDV) or with internal company regulations, in
action.
3 DESCRIPTION
3.1 Function
B pressure valves according to DIN 14381:2017-04 serve as shut-off
devices for the pressure outlets of centrifugal fire pumps.
The pressure valve has a non-return function that closes automatically
during the venting process (priming). In the event of a brief interruption
of pump operation, this eliminates the need for a new venting process.
The outlet pressure of the centrifugal fire pump opens the valve against
the spring force.
To open the non-return valve manually, pull the knob of the spindle lock
and turn the hand wheel further out counter-clockwise. The valve disc is
thereby mechanically lifted from its seat, the non-return valve is overrid-
den. This function can be used, for example, to relieve pressure built up
in the delivery lines via the centrifugal fire pump.

AWG I Operating manual I Valves I B pressure valves DESCRIPTION
8 / 21 M1125B10 I Rev. 01-03/22
In the "Servo" version, the valve disc is also hydraulically balanced. This
reduces the torque required to close the valve against the pump pres-
sure. The closing torques of the standard valves are significantly higher
and comply with the design specifications of the product standard.
The pressure valve is used to slowly open and close a pressure outlet,
thus avoiding hazards and damage due to pressure surges.
For water delivery, the pressure valve should be opened as fully as pos-
sible. It is not possible to regulate the flow rate by intermediate positions
of the valve, as the valve can open automatically during operation due
to external influences such as flow, vehicle and turbulence vibrations.
3.2 Intended use
Shutting off the pressure outlets of fire pumps
Opening and closing the pressure outlet
Only use the device in technically sound condition and in accordance
with the intended purpose and with safety and potential dangers in mind.
3.3 Foreseeable misuse
Use to control the flow rate (no intermediate positions allowed)
Use beyond the country-specific fire brigade regulations (in Ger-
many: FwDV)
Conversion or modification
Operation in technically unsound condition
Operation outside the approved characteristic values
Fitting of spare parts that are not approved or not suitable for the
operating conditions

AWG I Operating manual I Valves I B pressure valves DESCRIPTION
M1125B10 I Rev. 01-03/22 9 / 21
3.4 Characteristic values
Max. operating pressure
Operating temperature
16 bar (PN16) / 25 bar (PN 25)
- 20 °C * to + 60 °C
*with running water
With a pressure drop of 1 bar, the flow must be at least 2000 l/min.
Technical data
You can find additional key data in the product information for
the relevant pressure valve in the AWG catalogue or on the
Internet at www.awg-fittings.com/products/fittings.
3.5 Overview
Fig. 1 Overview B pressure valves (examples)
1
2
3
Valve hand wheel
Threaded connection, outlet side
Spindle lock
4
5
6
Housing
Flange, inlet side
Flange connection, outlet side

AWG I Operating manual I Valves I B pressure valves DELIVERY, TRANSPORT, STORAGE
10 / 21 M1125B10 I Rev. 01-03/22
Versions
ID No. Type Connection Dimensions [mm] Weight
[kg]
L B H
20215933 B – F 90 * Flange connection 145 125 200 1.8
20196233 B – G 45 L * BSP G2 1/2" AG 220 125 200 1.9
20805132 B – G 80 K * BSP G2 1/2" AG 140 125 250 1.6
20201033 Servo PN 25 Flange connection 145 125 200 2.0
* Design according to DIN 14381
4 DELIVERY
The pressure valve has been carefully packaged at AWG Fittings GmbH.
After unpacking, check the delivery for damage and verify complete-
ness.
Any damage must be immediately reported to the carrier.
If parts are missing, immediately inform the responsible specialist
dealer or AWG Fittings GmbH.
The packaging material is recyclable, please dispose of it in an envi-
ronmentally-friendly manner.
The pressure valve is delivered ready to be connected and is immedi-
ately ready for use in an extinguishing system after connecting with a
suitable coupling.

AWG I Operating manual I Valves I B pressure valves APPLICATION
M1125B10 I Rev. 01-03/22 11 / 21
5 USE
5.1 Notes
WARNING
Attach adapters correctly
Danger of injury due to loosening of adapter connections.
– The flange connections mounted on the customer side and the
couplings mounted on the outlet side must be firmly screwed onto
the pressure valve.
WARNING
Risk of injury from strong pressure surges
When opening or closing the pressure valve quickly, pressure surges
may occur depending on the pressure and the flow rate. Safe handling
must be ensured.
The maximum pressure load must be within the specified pressure
range.
– Use a pressure relief valve if necessary.
WARNING
Perform the specified inspections
To avoid serious injury, the specified inspections to be carried out to
detect damage must be observed.
Installing the B pressure valve
As a rule, the inlet side of the B pressure valve is permanently
mounted on a piece of equipment (vehicle, pump). On the
outlet side, the pressure valve can also be permanently in-
stalled on a flange or a coupling is mounted.
If the B pressure valve is installed by the customer, observe
the country-specific service regulations or the in-house regu-
lations as well as the specifications of the vehicle or pump
manufacturer.

AWG I Operating manual I Valves I B pressure valves APPLICATION
12 / 21 M1125B10 I Rev. 01-03/22
5.2 Handling
IMPORTANT
Avoid corrosion
To prevent corrosion damage, water or a water/foaming agent mixture
must not be constantly present at the valve inlet.
– When used in saltwater areas, drain the valve after use and flush
with fresh water.
– When used with a water/foaming agent mixture, drain the valve af-
ter use and flush with fresh water.
Handling
The pressure valve is not self-locking, it can open automati-
cally during operation due to external influences such as flow,
vehicle and turbulence vibrations.
– Fully open the pressure valve to deliver water.
1
2
3
Inlet mounting flange
Spindle lock
Valve hand wheel
4
5
6
Outlet connection (customer)
Outlet threaded connection
Fastening element (customer)
Fig. 2 Handling
Personal protective equipment was donned.

AWG I Operating manual I Valves I B pressure valves APPLICATION
M1125B10 I Rev. 01-03/22 13 / 21
Opening the pressure valve
1. Connect the piece of equipment or the hose to the connection
mounted on the outlet side of the pressure valve.
2. Open the water supply.
3. Fully open the hand wheel (Fig. 2/3) by turning it anticlockwise.
4. Open the fittings connected on the outlet side.
Note By releasing the spindle lock (Fig. 2/2) on the valve neck,
the non-return effect is cancelled, the valve is then per-
manently open.
Closing the pressure valve
1. End the discharge of the extinguishing agent.
2. Shut off the water supply.
3. Fully close the hand wheel (Fig. 2/3) by turning it clockwise.
4. Disconnect the piece of equipment or the hose from the connection
mounted on the outlet side of the pressure valve.
Attention Water may emerge when the connection is opened.
Drain Servo-type pressure valve if there is a risk of
frost
Open the valve beyond the spindle lock. The valve is then
completely open. The water inside the valve is thus automat-
ically forced out.
Then close the valve completely again.
5.3 After every use
The pressure valve is disconnected from the water supply.
1. Clean the pressure valve and check for visible damage.
Caution Do not continue to use damaged components!
If you discover any damage, this must be reported to the
person or department responsible.
2. After use, open the pressure valve by a quarter to half turn to relieve
the pressure on the valve disc.

AWG I Operating manual I Valves I B pressure valves FUNCTIONAL CHECK
14 / 21 M1125B10 I Rev. 01-03/22
6 FUNCTIONAL TEST
6.1 Prerequisites
All tests of the functional safety of the AWG pressure valves must be
carried out in accordance with the manufacturer's technical documenta-
tion and documented if necessary.
The following inspections are defined for the pressure valves:
– Mandatory BASIC Inspection after each use
– Mandatory STANDARD Inspection every 12 months
– Optional ADVANCED Inspection every 12 months
The STANDARD and ADVANCED inspections may only be carried out
by qualified personnel who have been trained for these inspections:
– Fire-fighters who have received training as fire-fighting equip-
ment maintenance technicians or persons with equivalent qualifi-
cations
– or, if desired, directly by the manufacturer
Inspection by the manufacturer
AWG Fittings GmbH offers an inspection as part of its service offering.
Send us the pressure valve and you will receive the inspected device
back by the agreed date. You will find a return delivery form on our web-
site www.awg-fittings.com. If required, a rental device can also be pro-
vided.
Documenting the inspection result
To meet the requirements for occupational safety and acci-
dent prevention, the test results for each test must be docu-
mented. Please observe the country-specific regulations.
In Germany, the guidelines of the DGUV (Deutsche Gesetz-
liche Unfallversicherung e.V. [German Statutory Accident In-
surance]) apply.
A product specific test chart in accordance with the DGUV
can be downloaded from www.awg-fittings.com
– Keep the documented test result as proof.

AWG I Operating manual I Valves I B pressure valves FUNCTIONAL CHECK
M1125B10 I Rev. 01-03/22 15 / 21
6.2 Performing the inspection
CAUTION
Performing the inspection safely
Some inspection steps are performed with pressurised systems. For
testing purposes, the valve can be statically subjected to 1.5 times the
nominal pressure (PN) with a test time < 2 minutes.
– Observe the safety regulations.
– Wear personal protective equipment.
– Do not put other persons in danger.
6.2.1 BASIC Inspection after each use
1. Check the pressure valve for visible damage, loose parts and dirt.
2. Check the lock nut of the hand wheel valves for tight fit.
3. Check the function of the spring-loaded pull knob of the spindle lock.
6.2.2 STANDARD Inspection every 12 months
1. Static pressure test in flow direction at closing pressure of the
FPN/PFPN (duration 2 minutes; tightness of the valve).
2. Check the lock nut of the hand wheel valves for tight fit.
3. Check the pressure valve for calcification.
4. Check the adjustment spindle for sufficient lubrication.
6.2.3 ADVANCED Inspection every 12 months
Check the valve disc and gasket for wear.
Threaded version: Check the thread for heavy wear and tear.
Replace device if worn.

AWG I Operating manual I Nozzles I B pressure valves MAINTENANCE
16 / 21 M1125B10 I Rev. 01-03/22
7 MAINTENANCE
7.1 Inspection and maintenance
Apart from visual inspection, cleaning and the recommended relubrica-
tion of the spindle, no regular service work is necessary.
Spindle relubrication
1. Relubricate the pressure valve spindle after approx. 100 operating
hours.
Closing torques and wear can be considerably reduced with this spray
grease: Rivolta W.A.P. Aerosol / Bremer & Leguil GmbH, Duisburg,
(www.Bremer-Leguil.de)
Limescale deposits
Limescale leads to leaks and wear as well as to the sluggishness of
moving parts. The period of time during which the pressure relief valve
calcifies or whether calcification occurs at all depends largely on the fre-
quency of use and the composition of the pumped water. Therefore, no
regular maintenance or repair intervals can be specified.
1. As soon as you notice limescale on the pressure relief valve, descale
the machine with a mild descaler. Follow the user instructions for the
descaling agent.

AWG I Operating manual I Valves I B pressure valves MAINTENANCE
M1125B10 I Rev. 01-03/22 17 / 21
7.2 Repair
Replacing the guide bush and valve disc
1
2
3
4
Housing
Spindle
Spindle square shaft
Valve hand wheel
5
6
7
Disc
Cap nut
Spindle lock
Fig. 3 Dismantling the spindle
Replacing the guide bush
1. Unscrew the pressure valve from the inlet and the fittings connected
on the outlet side.
2. Unscrew the cap nut (Fig. 3/6), remove the washer (Fig. 3/5) and the
hand wheel (Fig. 3/4).
3. Unscrew the spindle lock assembly (Fig. 3/7) completely from the
housing (Fig. 3/1).
4. Unscrew the spindle completely downwards out of the housing using
a suitable spanner on the square (Fig. 3/3).
5. Knock out the guide bush.
6. Fit the new guide bush with the pre-mounted O-rings.
Attention: When inserting, take care not to damage the O-rings.

AWG I Operating manual I Nozzles I B pressure valves MAINTENANCE
18 / 21 M1125B10 I Rev. 01-03/22
Replacing the disc
1
2
3
4
5
Valve plate
Shaft
Adapter
Locking plate
Spindle
6
7
8
9
10
Guide bush
O-ring 33x3 NBR
O-ring 20x3 NBR
Pressure spring
Threaded ring
Fig. 4 Bush and valve disc / spindle
1. Straighten the lug of the locking plate (Fig. 4/4).
2. Completely unscrew the valve disc (Fig. 4/1) with the mounted axle
(Fig. 4/2) from the adapter M14x1.5~00 (Fig. 4/3).
With repair set Advanced: Replace pressure spring (Fig. 4/9) and
spindle (Fig. 4/5).
3. Screw the adapter in the correct position onto the axle of the new
valve disc and screw on the threaded ring (Fig. 4/9).
4. Insert the new locking plate in the correct position.
5. Screw on the spindle. The guide of the locking plate must be seated
in the notch of the spindle.
6. Screw the adapter tight and secure the position by bending the lug
of the locking plate.

AWG I Operating manual I Valves I B pressure valves MAINTENANCE
M1125B10 I Rev. 01-03/22 19 / 21
7. Put the spindle back into the housing and screw on the hand wheel.
Repair version "Servo”
A gasket set and a repair set are also available for the "Servo"
version. Training is required for the repair, or have this ver-
sion repaired by AWG customer service or an authorised spe-
cialist workshop.
Any other repair work on AWG pressure valves may only be performed
by the AWG Fittings GmbH customer service or by an authorised spe-
cialist workshop.
If you need technical support, please contact our Service Centre:
AWG Fittings GmbH
Service Centre
D-89177 Ballendorf
Telephone: [phone]
Email: [email protected]
We will accept devices in need of repair or maintenance, discuss with
you the quickest and cheapest solution, create cost estimates, take care
of the execution of the repair work and are at your disposal for any ques-
tions.
7.3 Disposal
Observe the local regulations regarding proper waste recycling or dis-
posal.
Materials
Body: Aluminium alloy or gunmetal*
Spindle: Brass
Hand wheel: Glass fibre reinforced plastic
Valve disc: Aluminium alloy with NBR or brass
Gaskets: NBR
* Version not in accordance with DIN 14381

AWG I Operating manual I Valves I B pressure valves ACCESORIES / SPARE PARTS
20 / 21 M1125B10 I Rev. 01-03/22
8 ACCESSORIES / SPARE PARTS
Spare parts
Item Designation Article num-
ber
1 B pressure valve, repair set Standard
Pressure valve guide bush
O-ring 33x3 NBR
O-ring 20x3 NBR
Valve disc with mounted axle 52 mm
O-ring 93x3 NBR
Locking plate with J-lug
62060799
2 B pressure valve, repair set Advanced
as standard; plus:
Spindle RD 20x1/8" L=180 mm
Pressure spring 9.7x0.8x115
62077099
– B pressure valve "Servo", gasket set 202 021 80
– B pressure valve "Servo", repair set 605 358 99