Backflow

In each issue of Working Pressure, we ask 10 questions to a training coordinator or instructor of an ASSE-approved training provider. Some questions are...

Question: I have a 4” Deringer Model 40. Can you tell me how to change the rubber parts for the checks and relief valve? Are...

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

The focus of this issue of Working Pressure is “New Technology." In the backflow industry, changes occur all the time. Existing product standards are...

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 have a 1” Febco model 860 reduced pressure principal assembly that is dripping from the relief valve and needs to be repaired. Can...

ASSE International is working with the worlds largest airplane manufacturers, as well as the U.S. Food and Drug Administration (FDA) to develop a standard...

People reading this article are for the most part aware of the importance of backflow prevention and cross-connection control. We know that backflow prevention...

Question: I am working on a 4” Wilkins reduced pressure principle assembly. The model number is 375A. Can you tell me how this model is...

As 2019 ends, it’s a good time to reflect on what we have accomplished over the past 12 months and what we look forward...