PRODUCT INFORMATION
Bermad FP 400E-2MC Pressure-Reducing and Electrically-Controlled Deluge Valve Combination
The BERMAD model 400E-2MC is an elastomeric, hydraulic line pressure operated deluge valve. Designed specifically for advanced fire protection systems and the latest industry standards.
The 400E-2MC is activated by a 3-Way solenoid valve, that actuates a latching relay valve opening the main valve. Once open, the valve will not close until locally reset. An integral pressure reducing pilot ensures a stable and precise preset downstream system water pressure.
The optional valve position indicator can include a limit switch suitable for Fire & Gas monitoring systems. The 400E-2MC is ideal for open-nozzle systems with a high pressure water supply and is available with electric components to suit any hazardous location.
FEATURES & BENEFITS
- Safety and reliability
- Time proven, simple design, fail-safe actuation
- Single piece, rugged elastomeric diaphragm seal -
- VRSD technology
- Obstacle-free, uninterrupted flow path
- No mechanical moving parts
- 3-Way Solenoid Valve, UL429A Listed
- Latches open: remains open until reset locally
- Ensures precise, stable downstream water pressure
- Quick and easy maintenance
- Designed for high reliability and easy maintenance
- In-line serviceable
- Fast and easy cover removal
TECHNICAL DATA
OPERATION
The BERMAD model 400E-2MC is held closed by water pressure in the control chamber [1]. Upon release of pressure from the control chamber, the valve opens. Under NORMAL conditions, water pressure is supplied to the control chamber via the priming line [2] strainer [3] and restriction orifice [5] it is then trapped in the control chamber by a check valve [4], manual emergency release [6], and a relay valve (URV-M) [7] that is held closed by water pressure supplied through a three-way solenoid valve [8]. The water pressure trapped in the main valve control chamber holds the diaphragm against the valve seat, sealing it drip-tight and keeping the system pipes dry. Under FIRE conditions, water pressure is released from the control chamber, either with the manual emergency release, or by the URV-M opening in response to the solenoid valve being activated by the fire & gas control system [C]. This latches the 400E-2MC deluge valve open, allowing water to flow into the system piping and to the alarm device.
The pressure-reducing pilot valve [10] senses changes in outlet pressure and, modulates the main valve to maintain the set downstream pressure. When outlet pressure rises above the setting of the pilot spring force, the pilot valve throttles, enabling pressure to accumulate in the control chamber, this causes the main valve to close further and reduce outlet pressure to the set pressure. When outlet pressure falls, the pilot valve opens wider, releasing pressure from the control chamber. This causes the main valve to immediately open wider and increase outlet pressure to maintain the set pressure.
LITERATURE
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Bermad FP 400E-2MC Pressure-Reducing and Electrically-Controlled Deluge Valve Brochure |
