I am just looking for confirmation of the difference between self relieving and non-relieving filter regulators. Pressumably in a fail situation one type vents air to atmosphere and the other passes

A plant we started up recently uses alot of PD process pumps. Per the company standard, relief valves were included in the pump discharge (to suction) to protect the piping against overpressure.

In practice of TOTAL(Franch) company explained that butterfly valve is commonly used in low pressure gas lines,but not indicated which pressure is defined as low pressure.if everyone have any experien

We have a client who is asking for us to review all pipe stress calculations for relief valves on a very large offshore facility. The relief valves are Tyco Pilot Operated.

I recently saw a configuration that included two(2) 48-inch butterfly valves proposed to be installed a few feet from each other.

I have concern regarding how to control/set the emergency closing speed (seconds) and if it is really necessary, because I have others peers that said it is not necessary. I will appreciate any advis

Does anyone have an idea about activities of Zikesch? Are they a manufacturer or engineering firm?

I am looking at sizing a relief system looking at thermal expansion in piping. I have the correlation from Crowl and Louvar: Q=(beta/density*Cp)*(UA(deltaT)).My questions are as follows: