How do Water Pressure Reducing Valves (PRV) Work?

Join Disney-McLane's PRV expert Jason Plageman as he explains the science behind water pressure reducing valves.

[@melsarseg.4988]

Exactly what I was looking for help me a lot

[@tjinnes]

I learned a lot. Thanks.

[@therbeeo5364]

Great video thanks!

[@gurvin1987]

this video presentation is great, in depth explanation.

[@elijahworker6441]

Thanks a ton!

[@richardferguson8217]

The explanation of operation for the PRV states that the diaphragm area is 1.5 times the seat area. If the seat pressure to open the valve is 50 psi, then the diaphragm exerts (1.5 x 50 psi =) 75 psi, not 150 psi as the narrator states. Otherwise, the explanation is reasonable.

[@ornip1]

Good video despite sound quality

[@swetamehta5328]

Q: HOw to find what type of PRV is installed in my house. I have located the value, what to read on PRV value to determine which PRV is installed?

[@DisneyMclane]

Hi Sweta, there should be an identification tag on the valve. If you have trouble, you can send a picture of your valve to us at [e-mail] and we will try to identify for you.