Buildings & Construction Knowledge Center

How to Commission and Calibrate a Pressure Reducing Station with Excessive Pressure Shut-off valve

This video shows the commissioning and calibration of the BERMAD 720 pressure reducing control valve installed in-line with a BERMAD 794 shutoff valve. Both valves are shown installed in a pressure reducing station equipped with upstream and downstream isolation valves an in-line strainer and pressure gauges. This configuration is designed to reliably and accurately reduce a higher supply line pressure to a lower consumer line pressure regardless of fluctuating upstream pressure or flow rate. If consumer line pressure rises above a pre-set maximum the BERMAD 794 shutoff valve will close the consumer supply line. Thus the shutoff valve prevents the excessive pressure from entering the consumer pipeline until corrective action has been taken. Once closed, the shutoff valve will trigger a limit switch to alert the relevant authority to implement corrective action

How to Commission and Calibrate a Pressure Reducing Station with Watchdog Valve

This video shows the commissioning and calibration of the BERMAD BC-720 pressure reducing control valve installed in-line with a Bermad 72S-H pressure reducing emergency backup or "watchdog" valve. Both valves are shown installed in a pressure reducing station equipped with upstream and downstream isolation valves, pressure gauges and an in-line strainer. This configuration is designed to reliably and accurately reduce a higher supply line pressure to a lower consumer line pressure regardless of fluctuating upstream pressure or flow rates. As a safety feature, the station includes a "watchdog" emergency backup valve, normally dormant and fully open and that will quickly enter into a pressure reduction mode if the consumer line pressure rises above a pre-set maximum value. As soon as the "watchdog" valve enters into operation a limit switch on the valve will be triggered to alert the relevant authority to implement corrective action.

How to Commission and Calibrate a Single Stage Pressure Reducing Station 720

In this video, we describe the commissioning and calibration of the BERMAD 720 pressure reducing control valve, shown installed in a pressure reducing station equipped with upstream and downstream isolation valves, pressure gauges and an in-line strainer. This configuration is designed to reliably and accurately reduce a higher supply line pressure to a lower consumer line pressure regardless of fluctuating upstream pressure or flow rates

How to Commission and Calibrate a Pressure Reducing Station With Relief Valve 73Q, 720

In this video, we show the commissioning and calibration of the BERMAD 720 pressure reducing valve and a BERMAD 73Q relief valve. Both valves are shown installed in a pressure reducing station equipped with pressure gauges, upstream and downstream isolation valves and an in-line strainer. This configuration is designed to reliably and accurately reduce a higher supply line pressure to a lower consumer line pressure regardless of fluctuating upstream pressure or flow rates. This station includes a pressure relief valve to relieve pressure spikes that might occur in the consumer supply line.

How to Commission and Calibrate a Two Stage Pressure Reducing Station 720-PD, 720

This video shows the commissioning and calibration of the BERMAD 720 pressure reducing control valve installed in-line with a Bermad 720-PD constant ratio pressure reducing valve. Both valves are shown installed in a pressure reducing station equipped with pressure gauges, upstream and downstream isolation valves and an in-line strainer. Use this configuration to enable the sharing of the load of a high differential pressure reduction between two valves. The primary pressure reduction of the station is achieved by a constant ratio Proportional Diaphragm valve. The secondary reduction by a pilot operated reducing valve to accurately reduce the pressure to the exact requirement. This dual reduction system offers higher reliability and safety, longer service intervals and a quieter operation

Pre-Action in Elevator Technical Room

This animation presents the BERMAD Pre-Action fire protection system, which is installed at the machine room as an integral component of the building’s fire protection system.

Deluge in Garbage and Energy Room

This animation depicts activation of the BERMAD deluge system preventing fire from spreading to other parts of a building and isolating the nearby flammable material storage from the flames.

Multi Floor Installation

This animation describes the advantages of BERMAD’s single-floor pressure reduction system, installed in the water supply system of a high-rise building that is divided into few multi-floor pressure zones.

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.

Pump Applications

This animation demonstrates the operation of the pump involved in filling the upper reservoir in high-rise buildings, and describes BERMAD safety procedures for protecting the system from excessive pressure.

Level Control Challenge

This animation demonstrates the lower reservoir filling cycle in a high-rise building, and describes the BERMAD safety procedure that protects the building from reservoir overflow.