IOM
Model: 43T Pressure Relief Valve
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1.2 Optional Features / Accessories
1.2.1
Valve Position-Flow Indicator (code I)
This option provides the means for Visual Indicating of the Valve Position at all times, by detecting the
motion of main the valve internal assembly. This feature must be ordered in advance and therefore not field
retrofit-able.
This option provides the means for detecting motion of water through the valve according to requirements of
NFPA 20. This item is field retro-fit able.
1.2.2
Valve Position Limit Switch (code S or SS)
This option is recommended It is recommended to provide remote Valve Position Signal, it shall be
assembled and installed according to instructions within it’s package, consult Bermad if any field adjustment
is to be made.
1.2.3
Large Control Filter (code F)
This option provides extra capacity means for filtering of the water supplied to the control loop to achieve the
essential level of debris free water. This feature is recommended for those cases where there is any doubt
as to the level of particulate matter in the water.
2. Approvals
The Bermad 43T Pressure Relief Valve is UL Listed and FM Approved when. Refer to the current UL and/or FM
fire protection equipment directory. Consult Bermad for any component approval recently to appear in any
equipment directory.
3. Installation
3.1 Before the valve is installed, flush the pipeline to remove any dirt, scale, debris, etc. Not flushing the line
might result in the valve being rendered inoperable.
3.2 In cases where the valve is used for individual pump pressure-relief, locate the relief valve between the
pump and the pump discharge check valve. It should be attached in a way that it can be readily
removed for repairs without disturbing the piping.
3.3 Allow enough room around the valve assembly for any adjustments and future
maintenance/disassembly work.
3.4 Install the valve in the pipeline with the valve flow arrow on the body casting in the proper direction.
Use the lifting eye provided on the main valve cover for lifting and lowering the valve.
3.5 For best performance, install the valve horizontally with the cover up. However, other positions are
acceptable. Ensure that the valve is positioned so that the actuator can be easily removed for future
maintenance.
3.6 After installation, carefully inspect/correct any damaged accessories, piping, tubing, or fittings. Ensure
that there are no leaks.
