How To Set a Bermad 43Q Pressure Relief Valve

Pressure relief valve model 43Q

Colin Kirkland
Colin Kirkland
Air Valve Product Manager / Technical Training

August 2017

A set of Bermad 43Q pressure relief valves next to a river

Pressure relief valves are a critical part of any distribution system across the areas of irrigation, water supply, building, and fire services. Colin Kirkland shares his tips for accurate installation and set-up.

Pressure relief valves are designed to relieve excess pressure from a network under high pressure conditions. Correct installation is essential for pipeline performance and the ongoing maintenance of your system.

If these valves are not set correctly, it can apply excessive pressure to a network – resulting in potential damage to your system. The purpose of this how-to is to demonstrate best practice when setting the Bermad 43Q pressure relief valve.

The Bermad 43Q pressure relief valve

The Bermad 43Q pressure relief valve is a two way fast acting pressure relief pilot. The valve is hydraulically operated, and relieves excessive line pressure when it rises above the preset maximum.

It controls the flow of water to the main valve, which in this instance, is the Bermad 400 series valve.

Upon reaching excessive pressure, the valve vents water from the cover to the downstream of the valve. This allows the valve to open, venting the excessive pressure from the valve inlet.

Different sized pilots are used depending on the size of the valve. Ensuring this compatibility allows for a fast acting system. If you require support when selecting the perfect pilot for your pipeline, get in touch with the Bermad team for guidance.


How to set the valve

To learn how to best set the Bermad 43Q pressure relief valve, take advantage of our brief video demonstration that outlines the simple step-by-step process.

Should you require additional resources, such as the operation manual or data sheets, visit the Bermad 43Q product page for more information.


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