Single Floor Installation

This animation describes the operation of Integrated self supported BERMAD’s Pressure Reduction system in water supply of high-rise building, which is divided into few pressure zones.

Quick Pressure Relief Valve BC-73Q-P

Hydraulically operated, diaphragm actuated quick pressure relief valve that relieves excessive system pressure when such pressure rises above a pre-set value.

It responds immediately, accurately, and with high repeatability to a rise in system pressure by opening fully.

It also provides smooth drip tight closing.
BERMAD 700 series valves are globe style control valves available in either standard Y (oblique) or angle pattern configurations.

They have a full bore hydrodynamic body providing an unobstructed flow path, with a seat assembly and double chamber unitized actuator that can be removed from the body as a separate integral unit.

  • High Quality Construction Materials – Reliable, resilient and long lasting operation.
  • Robust Design – Suitable for constant, intense operation.
  • In-Line Serviceable – Quick and easy maintenance and service.
  • Line Pressure Driven – Independent operation, no external power needed.
  • Unitized Actuator Assembly – Minimal downtime.
  • Hydrodynamic Body with Unobstructed Flow Path – Minimal noise and cavitation damage.
  • Protected Diaphragm – Minimizes chance of damage caused by debris in the pipeline.
  • 2-Way Control Loop – Immediate, accurate response to sudden system variations.
  • Adjustable Pilot – Easy field pressure setting and calibration.
  • System Failure Indication (optional) – Immediate notification to maintenance personnel.

Typical Application


  • Protects downstream against excessive pressure due to PRV failure.
  • Prevents system damage due to sudden demand reduction.
  • Relieves pressure spikes due to abrupt pump stoppages.


  • Note: The BERMAD BC-73Q-P requires proper drainage, where drainage is limited, consider the BERMAD BC-72S-H-P or the BERMAD BC-794-P.


English BC-73Q-P Product Page
English BC 700 Engineering
English BC 700-800 Potable Water Ordering Guide