Seat of a psv

[Indy]

Hello,
This may be an extremely basic question but Am I correct in assuming that the seat of a conventional psv is made up of the nozzle,disk and guide?

Thanks

 

[The Obturator]

For metal seated PRV, the Nozzle is the fixed part of the seat. The disc or disc insert forms the moveable part of the seat. If you use an O-Ring the same applies but the ring is actually the seat normally part of the disc design.





Per ISO-4126, only the term Safety Valve is used regardless of application or design.