Backflow

According to the ASSE International Plumbing Dictionary, working pressure is the maximum pressure in a water piping system allowable under normal working conditions. Likewise,...

Question: I am servicing a 4” Ames Model C400. Can you tell me about this assembly and how to change the rubber parts for the...

There are many types of backflow protection devices and assemblies – each is designed for a specific application – but the most prominent of...

In 2021, ASSE International was pleased to announce the publication of ASSE 1013-2021, Performance Requirements for Reduced Pressure Principle Backflow Prevention Assemblies, ASSE 1015-2021,...

Backflow prevention is the backbone of what ASSE International does. Therefore, we include some backflow articles or columns in each edition of Working Pressure...

According to the ASSE International Plumbing Dictionary, working pressure is the maximum pressure in a water piping system allowable under normal working conditions. Likewise,...

Question: I am servicing a 4” Apollo Model RP4AN. Can you tell me about this assembly, and how to replace the check valve discs and...

Dispensing Equipment Alliance (DEA) is a non-profit membership organization that was formed as a chapter of the International Association of Plumbing and...

With very few exceptions, almost every water-based fire protection system requires some form of backflow protection or cross-connection control. On the residential...

Question: I have a 3” Watts Model 007DCDA that needs to be serviced. I want to replace the check valve discs. Can you go over...