Page 292 - Valve Selection Handbook

Appendix A

ASME CODE SAFETY

VALVE RULES

Table A-1
Pressure Relief Devices

BOOKSECTION
Pressure Relief Devices
Allowed by the ASME Code 1 1 IV VIII X
NB NC ND NE
Direct Spring Loaded Pressure Relief Valve
Pilot Operated Pressure Relief Valve • • • • • •
Power Actuated Pressure Relief Valve • • • • •
Pressure Relief Valve with Auxiliary Actuating Device • • • •
Rupture Disc Device • • • • •
*
Breaking Pin Device with Pressure Relief Valve •
Spring Loaded Non-Reclosing Pressure Relief Device •
Vacuum Relief Valve • • •
Buckling Pin Device +

*ln combination with pressure relief valve on organic fluid vaporizer only
+Code Case 2091

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