Pressure vacuum breakerinstallation

– Suitable for installation into AS3500 compliant systems for hot water 65 deg Celsius – 90 deg Celsius and cold water 10 deg Celsius to 25 deg Celsius.

This article will provide a detailed understanding of PVBs, their significance, and why you need one for your irrigation system.

Although such events are rare, they can lead to the suction of water from sprinkler lines into the main water supply and, subsequently, enter your household fixtures.

Implementing these measures will adhere to building codes and provide you with peace of mind knowing that your water supply remains secure.

Pressure vacuum breakerfor sprinkler system

However, when the air pressure surpasses the water pressure, the vented chamber opens, breaking the suction effect of the low pressure and preventing the backflow of water.

A pressure vacuum breaker is an indispensable component that safeguards your home's freshwater supply by preventing backflow or back siphoning of water from the irrigation system.

The Broen Stabitherm is a high performance Thermostatic mixing valve suitable for a wide range of applications. Broen Stabitherm carries the following features:

What is apressure vacuum breakerused for

Pressure vacuum breakerdiagram

Since most homes have a single water system for drinking water and other household uses, including irrigation, contamination through cross-connections always exists.

By understanding how PVBs work, performing regular maintenance, and addressing necessary repairs, you can ensure your irrigation system's continued functionality and reliability.

After winterization, it is recommended to open the valves on the PVB halfway to allow any residual water to escape as air, preventing pressure buildup that may cause damage.

Pressure Vacuum BreakerAssembly

Periodically, it is essential to check the breaker for leaks. Leaks may occur if the sealing tape or plumber's putty connecting the sides of the breaker is worn, incorrectly installed, or missing.

Pressure vacuum breakerleaking from top

A standard repair involves turning off the inlet and outlet ball valves and removing the bonnet assembly. Organizing the components during disassembly is advisable to facilitate the reverse installation process.

pressure vacuum breaker- how it works

By following these guidelines, you can maintain a robust and reliable pressure vacuum breaker, ensuring the safety and integrity of your home's freshwater supply for years to come.

Typically, it should be placed above the highest point in the system, such as the highest sprinkler head or the highest slope in your yard.

The 1 year replacement kit for Stabitherm Thermostatic Mixing Valves includes a 3-piece ‘O’ ring kit, 2 washers, 2 strainers, a service spanner and an installation booklet.

O-ring gaskets that seal against the inner walls of the breaker may become brittle and crack over time, while the plastic poppet and bonnet can also experience wear.

Pressure Vacuum BreakerParts

By the end of this guide, you will have a thorough knowledge of pressure vacuum breakers, enabling you to make informed decisions for protecting your home's freshwater supply.

If you notice leaking from under the bell or bonnet assembly of the valve, it is a clear indication that something is not functioning correctly.