API RP 621 provides guidelines for reconditioning heavy wall (API 600 type) carbon steel, ferritic alloy (up to 9% Cr), stainless steel, and nickel alloy gate, globe, and check valves for ASME pressure classes 150, 300, 400, 600, 900, 1500, and 2500. Guidelines contained in this RP apply to flanged and butt weld cast or forged valves.
API RP 621:2001 History
API RP 621:2018
$86.00 $172.00
API RP 621 (R2017)
$78.00 $157.00
API RP 621:2005
$72.00 $144.00
API RP 621:2001
$72.00 $144.00
More Standards PDF
API 612:1995
$72.00 $144.00
API Publ 4625
$72.00 $144.00
API Publ 332
$72.00 $144.00
API 618:1995
$92.00 $184.00