API598 Inspection and Testing

API598 Inspection and Testing

Inspection Range: This standard covers the inspection, test, complementary inspection and pressure test of Gate, Globe, Check, Ball, Butterfly and Plug valves.

Testing Types:

A shell test

B backseat test

C low pressure seal test

D high pressure seal test

E appearance inspection of casting

F high pressure gas shell test．

Specification Standard:

ASME

B L20.1 general pipe thread

B 16．11 forged pipes of socket welding and threaded connection

B 16．34 valves of flange,threaded and welded connection

SP--55 quality standard of casting steel valves,flange,pipe and other pipe fittings

SP--91 operating rules of manual valves

API

Std 594 wafer, lug and double flange check valve

Std 599 steel and ductile iron plug valve

Std 600 steel gate valve of bolt connection, flange and butt welding

Std 602 steel gate valve of flange, threaded and welding and extended body.

Std 603 150 LB corrosion flange connection gate (casting)

Std 608 flange, threaded and welding connection of metal ball valves

For more API598 details, kindly stay with our Sedelon.