PRODUCT INFORMATION
Bermad FP 400E-5M Hydraulically Controlled Anti-Columning Deluge Valve
The Bermad Model FP 400E-5M Classic Deluge Valve includes a Manual EsayLock Reset for latching the valve open in response to an electric, hydraulic, pneumatic, or electro-pneumatic signal. The Deluge Valve resets to the closed position only upon local manual reset activation.
FEATURES & BENEFITS
- PORV – local release adjustable device for
- anti-columning of high pilot lines
- Latch open – closes upon local reset only
- One-piece molded single moving part –
- no maintenance required
- Simple design – cost effective
- Obstacle-free full-bore – uncompromising reliability
- Fully factory pre-assembled trim – Out-of-Box Quality
- In-line serviceable – minimal down time
TECHINCAL DATA
OPERATION
The BERMAD Model 400E–5M is suitable for systems that include wet pilot-lines with closed fusible plugs (thermal releases), and piping systems with a wide variety of open nozzles. Providing boosted local pressure release from its control chamber, Model 400E–5M is recommended for systems with remote and/or elevated fusible plugs line. In the SET position, line-pressure supplied to both the main valve’s control chamber and to a Pressure Operated Relief Valve (PORV) via the priming line [3], through an EasyLock Manual Reset (EMR), and the wet-pilot-line restriction, and a check valve is trapped by the EMR's internal check valve, by the PORV held closed, and by a closed Manual Emergency Release. The trapped pressure holds the main valve’s diaphragm and plug against the valve seat, sealing it drip-tight and keeping the system piping dry. The PORV is held closed by the line-pressure in the wet pilot line.
Under FIRE or TEST conditions, a pilot-line hydraulic pressure-drop opens the PORV. Pressure is then released from the main valve’s control chamber through the opened PORV, or the Manual Emergency Release. The EMR prevents line-pressure from entering the control chamber, allowing the main valve to latch open and water to flow into the system piping and to the alarm device.
LITERATURE
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Bermad FP 400E-5M Hydraulically Controlled Anti-Columning Deluge Valve Brochure |
