Recent content by MSPVIN

the required capacity calls for 2 valves. can i increase the set pressure on the second valve? the question is can i increase the set pressure to 16% non fire case or is the pipeline under DOT and not pressure vessel code?

wanting to install a SSV between the boiler and SV?

how does back pressure = inlet pressure if the BP is on the outlet side?

thanks for the post, in regards to the pilot operated valves, is it true at some point say 70% back pressure the relieving capacity will be effected.

why is a pilot operated relief valve not effected by back pressure?

lets say you have a PRV set at 100 psig and at that pressure setting the valve has a max flow capacity of 10,000 GPM at 10% overpressure the valve is in full lift and has a max flow rate of 10,000 GPM I am looking for a flow chart (curve) that shows the capacity in proportion to valve lift...

after running the sizing calculations for a pressure relief valve, do you use API or ASME orifice area?

when the final selection of a pressure relief valve is required, will the code allow you to make the selection using the ASME or API orifice area?

very well explained, thank you

when sizing and selecting a safety valve for the economizer what sizing methodology do you use?

Code Case 2254 what are the requirements when using a Safety Selector Valve for Section 1 applications?