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Bermad - Model FP 400Y 3DC - Electric Pressure Control, On-Off Deluge Valve

Deeco - Bermad -  FP 400Y - 3DC - Product Image .
Brand: Bermad
Category: Control Valves, Fire Protection Series
Size Range:



40-400mm - Flanged
40-200mm - Grooved

Engineering Data:

Bermad - Model FP400Y - Engineering Data

Product Description

The BERMAD model 400Y-3DC is an elastomeric, hydraulic, line pressure-operated deluge valve, designed specifically for advanced fire protection systems and the latest industry standards. The 400Y-3DC is activated by a 3-way solenoid valve by which the opening and closing of the deluge valve may be controlled remotely. An integrated pressure control pilot ensures a precise and stable pre-set downstream water pressure. The 400Y-3DC is ideal for open-nozzle systems with a high-pressure water supply and is available with electric components to suit any hazardous location. The optional valve position indicator can include a limit switch suitable for Fire & Gas monitoring systems.

Features and Benefits

  • Safety and reliability
    • Time-proven, simple, fail-safe actuation
    • Single-piece, rugged, elastomeric diaphragm seal VRSD technology
    • An Obstacle-free, uninterrupted flow path
    • No mechanical moving parts
    • Shuts off on remote command
    • Ensures precise, stable downstream water pressure
    • Valve position limit switches (optional)
  • Designed for fire protection
    • Face-to-face length standardized to ISO 5752, EN 558-1
    • Meets the requirements of the industry standards
  • Quick and easy maintenance
    • In-line serviceable
    • Fast and easy cover removal
    • Swivel-mounted drain valves*

* for 3” valves and larger


Bermad - FP400Y - Approvals

Additional Features

  • Valve position limit switches
  • Sea water compatibility
  • Alarm pressure switch
  • Drain valve/s inlet/outlet
  • For “automatic activation” select BERMAD local or remote reset model

Typical Applications

  • Remote control water spray systems
  • Foam applications
  • Corrosive water supplies
  • High pressure water supply

Technical Data


Deeco - Bermad -  FP 400Y - 3DC - Operation

The BERMAD model 400Y-3DC 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] restriction orifice [5], and strainer [3], and is then trapped in the control chamber by a check valve [4], manual emergency release [6], and a relay valve (HRV) [7] that is held closed by hydraulic 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 HRV opening in response to either the solenoid valve being activated by the fire & gas control system [C] or by remote release. This opens the 400Y-3DC deluge valve, allowing water to flow into the system piping and to the alarm device [10]. The pressure-control pilot valve [9] senses changes in outlet pressure and, modulates the main valve to maintain the set downstream pressure. When outlet pressure rises above the pre-set pressure value, the pilot valve throttles, enabling pressure to accumulate in the control chamber. This causes the main valve to close further and reduce outlet pressure, keeping the outlet pressure at the set value. When outlet pressure falls, the pilot valve opens wider, releasing pressure from the control chamber. This causes the main valve to open wider and increases outlet pressure.

System P&ID

Deeco - Bermad -  FP 400Y - 3DC - System PID


1 BERMAD 400Y Deluge Valve

2 Priming Ball Valve

3 Priming Strainer

4 Check valve

5 Restriction Orifice

6 Manual Emergency Release

7 HRV-2 Hydraulic Relay Valve

8 3-Way Solenoid Valve

9 Pressure Control Pilot Valve

Optional System Items

PI Pressure Gauge

I Valve Position Indicator

DC Drip Check

AV 3-Way Alarm Valve

DV Drain Valve

PS Pressure Switch

ZS Limit Switch Assembly

W Water Motor Alarm

Main Valve

Available Sizes and Connection

  • 40-400mm - Flanged
  • 40-200mm - Grooved

Pressure Rating

  • ANSI#150 - 17.2 bar / 250 psi
  • ANSI#300 - 1½” to 10” 25 bar / 365 psi
    12” to 16” 20 bar / 300 psi
  • Grooved - 25 bar / 365 psi
  • Threaded – 25 bar / 365 psi
  • Standard setting range*: 4 - 12 bar (60 - 175 psi)

*For other setting ranges consult Deeco.


  • HTNR - Fabric Reinforced High-Temperature Compound

System Installation

A typical installation of the BERMAD model 400Y-3DC features actuation via a hydraulic relay valve and three-way solenoid valve, triggered by a signal from a fire & gas control system or an on-site emergency pushbutton. When open, and fitted with a limit switch the valve can send a feedback signal to a remote valve position monitoring system. A pressure control pilot valve integrated in the control trim ensures a precise and stable pre-set downstream water pressure.

Deeco - Bermad -  FP 400Y - 3DC - System Installation

Deeco - Bermad - FP 400Y - 3DC - System Installation

Technical Specifications

Suggested Specifications

The deluge valve shall be UL listed, 25 bar/365 psi rated, elastomeric-type, with a straight-through, Y-type body. The valve shall have an unobstructed flow path without a stem guide or supporting ribs. Valve actuation shall be accomplished by a single-piece rolling diaphragm, bonded with a rugged radial seal disk. The diaphragm assembly shall be the only moving part. The deluge valve shall include a relay pilot valve, and a 3-Way solenoid valve approved for 25 bar (365 psi) working pressure with a tolerance of 35% below the rated voltage. The trim shall include a pressure control pilot valve, a Y-type strainer, a ball drain valve, an automatic drip-check with manual override, 4-inch pressure gauges and a manual emergency release housed in a stainless steel box. The valve drain socket shall be flanged and have a 360-degree swivel. The valve shall be equipped with two limit switches. Removing the valve cover for inspection and maintenance shall be in-line and not require removal of the control trim, or the valve from the pipeline. The deluge valve and its entire control trim shall be supplied pre-assembled and hydraulically tested by a factory certified to ISO 9000 and 9001 standards.

Dimensions and Weights

Deeco - Bermad -  FP 400Y - 3DC - Technical Specifications
Deeco - Bermad -  FP 400Y - 3DC - Dimensions and Weights


L(1) Refers to the length dimensions for Raised Face ANSI #150, ISO 16 Flanged, Threaded and Grooved valves

L (2) Refers to the length dimensions for Raised Face ANSI #300 and ISO 25 Flanged valves

(3) Flow coefficients apply to a fully opened valve

(4) Leq (Equivalent Pipe Length) refers to turbulent flow in new steel pipe schedule 40 for a fully opened valve, values given for general consideration only

(5) IMPORTANT: Dimensions for the trim envelope or extents refer to a vertical orientation and may vary with specific component positioning - allow a tolerance of at least ±10%.

Due to the wide range of options and criteria for correct model selection, pricing and configuration are available on application only.

Please contact us for more information.

Fire - Ordering Guide 1
Fire - Ordering Guide 2
Fire - Ordering Guide 3
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