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Model: 42T
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4. Approvals
The Bermad 42T pressure reducing valve is UL Listed and FM Approved when installed with specific system components
as described in this installation manual.
Consult Bermad for any component approval recently to appear in any equipment directory.
NOTE: A Pressure Relief Valve, UL/FM approved size 1-1/2" or larger must be supplied for installation with every pressure
reducing valve, see table 1 for recommended size.
5. Installation
5.1
Allow enough room around the Bermad 42T pressure reducing valve assembly for any adjustments and future
maintenance/disassembly work.
5.2
Before the valve is installed, flush the pipeline to remove any dirt, scale, debris, etc. Failure to do this might result in
the valve being rendered inoperable.
5.3
A UL-listed and FM approved indicating valves should be installed upstream and downstream of the Bermad 42T
pressure-reducing valve to allow future maintenance, see figure 1.
5.4
Install the valve in the pipeline with the valve flow arrow on the body casing in the proper direction. Use the lifting
eye provided on the main valve cover for lifting and lowering the valve.
5.5
The Bermad 42T pressure-reducing valve is suitable for horizontal or vertical installation. Ensure that the valve is
positioned so that the cover is facing upwards and can be easily removed for future maintenance.
5.6
After installation, carefully inspect/correct any damaged accessories, piping, tubing, or fittings.
5.7
A listed/approved pressure relief valve shall be installed in accordance with NFPA 13. The pressure relief valve
must be installation with every pressure reducing valve, install the pressure relief valve offline, downstream of the
Bermad 42T pressure reducing valve, see figure 1.
NOTE
: The pressure relief valve shall be set to open at 0.5 – 1.0 bar (8 – 16 psi) above the 42T valve setting, see
table 1 for recommended size.
5.8
Install a listed/approved pressure gauge on both the upstream & downstream of the Pressure Reducing Control
Valve. See installation drawing, see figure 1 for indicated installation.
5.9
Install the Bermad 42T pressure-reducing valve in accordance with the Standard for Installation of Fire Sprinkler
Systems, NFPA 13, or the Standard for Installation of Standpipe and Hose System, NFPA 14, as appropriate. The
Bermad 42T pressure-reducing valve is to be tested after installation in accordance with NFPA 13.
5.10
The Bermad 42T pressure-reducing valve is to be inspected, tested and maintained in accordance with the
Standard for the Inspection, Testing and Maintenance of Water-Based Fire Protection Systems, NFPA 25.
6. Optional Instrument
6.1
Valve Position Indicator (code I)
This option provides the means for Visual Indicating of the Main valve Valve Seal Disc Position at all times, by
detecting the motion of the valve internal elastomer assembly.
6.2
Valve Position Limit Switch (code S, or S9)
The Valve Position Limit Switch
option is highly recommended for indication of the valve operation. It is
recommended to provide an Electric Remote Valve Position Signal.
Caution
: Verify that the switch is certified to suit to the hazardous location of the valve location.
6.3
Large Control Filter – Mark "F"
This "F" option provides extra capacity means for filtering of the water supplied to the pilot system, it is recommended
for those cases where there is any doubt as to the level of particulate matter in the water.
