PSV Testing Media

[Sharik]

Where does it specify when PSV's, which are in steam service, are serviced, the final servicing pop test must be completed using steam?

 

[texasmike45]

Sharik,

See NBIC Part 3, Section 4 under 4.5.1. "Valves marked for steam service, or having special internal parts for steam service, shall be tested on steam".

Thanks Mike