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Bermad - Model FP 400Y 5D - Hydraulically Control, On-Off Deluge Valve

Deeco - Bermad - FP-400Y-5D - 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-5D is an elastomeric, hydraulic line pressure-operated deluge valve, designed specifically for advanced fire protection systems and the latest industry standards. The 400Y-5D is activated by a hydraulic relay valve, by which the opening and closing of the valve can be controlled remotely. The 400Y-5D is suited to systems with remote-release wet pilot lines. 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 opening mechanism
    • Single-piece, rugged, elastomeric diaphragm seal VRSD technology
    • An Obstacle-free, uninterrupted flow path
    • No mechanical moving parts
    • Shuts off on remote command
    • Valve position limit switches (optional)
    • Local valve position indicator beacon (optional)
  • High performance
    • Very high flow efficiency
    • Straight-through-flow Y-type body
    • Approved for PN25/365psi
  • Specifically designed for fire protection
    • Face-to-face length standardized to ISO 5752, EN 558-1
    • Meets the requirements of industry standards
  • Quick and easy maintenance
    • In-line serviceable
    • Fast and easy cover removal
    • Swivel-mounted drain valves*

* not including 1½” & 2” valves


Bermad - FP400Y - Approvals

Additional Options

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

Typical Applications

  • Remote or elevated wet pilot lines
  • Remote control water spray systems
  • Flammable material storage
  • Power plants and transformers
  • Petrochemical facilities

Technical Data


Deeco - Bermad - FP-400Y-5D - Operation

The BERMAD model 400Y-5D 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 pilot line pressure [E]. 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 a decrease in hydraulic line pressure [E]. This opens the 400Y-5D deluge valve, allowing water to flow into the system piping.

System P&ID

Deeco - Bermad - FP-400Y-5D - 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-Hydraulic Relay Valve

Optional System Items

ZS Limit Switch Assembly

I Visual Indicator

Main Valve

Available Sizes and Connection

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

Pressure Rating

  • ANSI#150 - 16 bar / 235 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


  • HTNR - Fabric Reinforced High-Temperature Compound.

System Installation

A typical installation of the BERMAD model 400Y-5D features actuation via a hydraulic relay valve. When open and fitted with a limit switch the valve can send a feedback signal to a remote valve status monitoring system.

Deeco - Bermad - FP-400Y-5D - System Installation

Deeco - Bermad - FP-400Y-5D - 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, 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 a protective-covered, dual-color, rotational position indicator, readable from 50 meters, and with two limit switches enclosed in a protective switch box. Removing the valve cover for inspection or maintenance shall be in line with and not require the removal of the control trim. 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-5D - Technical Specifications
Deeco - Bermad - FP-400Y-5D - Dimensions and Weights


(1) L1 Dimensions are for grooved, threaded and raised face-flanged valves

(2) Leq (Equivalent Pipe Length) refers to turbulent flow in new steel pipe schedule 40, values are given for general consideration only

(3) Dimensions for the trim envelope may vary with specific component positioning

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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