Diaphragm valve FP-420-00
hydraulicpressure-controlfor water

Diaphragm valve - FP-420-00 - BERMAD CS Ltd - hydraulic / pressure-control / for water
Diaphragm valve - FP-420-00 - BERMAD CS Ltd - hydraulic / pressure-control / for water
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Characteristics

Type
diaphragm
Operation
hydraulic
Function
pressure-control
Media
for water
Material
elastomer
Associated function
fire protection
DN

Max.: 300 mm
(11.811 in)

Min.: 40 mm
(1.575 in)

Pressure

Max.: 17.2 bar
(249.5 psi)

Min.: 2 bar
(29 psi)

Description

Overview
The FP-420-00 pressure reducing valve is an elastomeric, hydraulic, line-pressure driven, diaphragm-actuated control valve designed to reduce high or unstable upstream pressure and maintain a precise, stable downstream pressure regardless of fluctuating demand or varying upstream pressure. Suited for fire protection applications, it controls fire pump discharge and prevents over-pressure in sprinkler systems, hose stations and other discharge devices.

Features & Benefits
  • Safety and reliability
    • Fail Open safety design
    • Single-piece elastomer (VRSD) construction
    • Obstacle-free, uninterrupted flow path
    • Main valve without internal mechanical moving parts
  • High performance
    • Fast, smooth stabilizing response to pressure fluctuations
    • Quiet and smooth operation
    • Ensures precise, stable downstream water pressure
  • Quick and easy maintenance
    • Fast and easy cover removal
    • In-line serviceable design
    • Compact, space-saving dimensions

Typical Applications
  • Sprinkler feed systems
  • Fire pump discharge control
  • Hose station supply
  • Fire hydrant supply
  • Zonal pressure control

Technical characteristics / specifications
  • Brand: BERMAD
  • Model: FP-420-00
  • Series: 400E Series
  • Product type: Pressure reducing valve (fire protection)
  • Operation: Elastomeric, hydraulic, line-pressure driven, diaphragm actuated
  • Valve technology: VRSD single-piece elastomer; obstacle-free flow path
  • Design: Fail Open safety design; main valve with no mechanical moving parts
  • Function: Reduces unstable upstream pressure to maintain precise downstream pressure despite fluctuating demand
  • Typical use: Fire pump discharge control; prevention of over-pressure in sprinkler systems, hose stations and other discharge devices
  • Performance: Fast stabilizing response; quiet and smooth operation; precise downstream pressure control
  • Maintenance: Fast cover removal; in-line serviceable; compact dimensions
  • Segment: Fire protection
  • Internal identifier / data-barcode: 478935

Catalogs

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Exhibitions

Meet this supplier at the following exhibition(s):

Eima International 2026
Eima International 2026

10-14 Nov 2026 Bologna (Italy) Hall 22 - Stand B/46

  • More information
    *Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.
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