EngCutie
Petroleum
- Nov 10, 2009
- 35
Hi, I have attached a drawing to help me explain.
Filter vessel - MAWP is 20Barg, I have a normal relief valve sized for when the pressure goes above the MAWP pressure, but my client wants a thermal relief valve. I’m a little confused, does that mean the pressure inside the vessel would never actually exceed the MAWP pressure without thermal effects? I read that thermal relief valves normally have smaller orifice size. Is it possible to have a relief valve that will relieve due to thermal effects as well as when the pressure exceeds the MAWP?
Upstream of the inlet is a pump, but it’s outside of our scope, so I’m not sure exactly what else is there.
Please help, thanks.
Cutie
Thank you, EngTips
Filter vessel - MAWP is 20Barg, I have a normal relief valve sized for when the pressure goes above the MAWP pressure, but my client wants a thermal relief valve. I’m a little confused, does that mean the pressure inside the vessel would never actually exceed the MAWP pressure without thermal effects? I read that thermal relief valves normally have smaller orifice size. Is it possible to have a relief valve that will relieve due to thermal effects as well as when the pressure exceeds the MAWP?
Upstream of the inlet is a pump, but it’s outside of our scope, so I’m not sure exactly what else is there.
Please help, thanks.
Cutie
Thank you, EngTips