I am working on PR2 testing ,i have a problem.API 6A Annex F (F1.8 b) notes that: 1."Gas testing is required for equipment for rated working pressures of 69,0 MPa (10 000 psi) and higher "

I have researched this subject on these forums and found some good reference ANSI FCI 70-2 (old B16.104) and API 598 forum. I'm still confused though.

For a groundwater remediation project I've designed an aboveground pump skid to pump groundwater out of one zone, add an amendment and then reinject into a different zone.

I have problem in reviewing QC document for Pressure reducing desuperheating valve (PRDS) material: A216 WCC rating : ASME 600# Plug and seat ring material: 410 SS (ANSI 410)

We have been facing serious problems in two areas of our plant. One is in liquid HCL isolating valves, we have more than 50 valves on dry HCL service at very low temperature but every now and then, we

I was doing some research on the gate valve bonnet vent system, and I came across the following from the US Department of Energy standards (DOE-HDBK-1018/2-93). "Some parallel disk gate valves used

Operations has had problems with the current actuated startup bypass valves. The fluid in this aplication is Blend Oil. There is currently a 30s shutoff actuator on a 1/4 turn ball valve. Because o

what are the reasons to use solid or flexible wedges in chemical service for gate valves. I only found that at small sizes I have to use solid (