1) Design and manufacture standards: API 609
2) Inspection and test standards: API 598
3) Face-to-face: API609
4) End flange dimension: ASME B16.5 (for NPS<24") , ASME B16.47 series B, API 605, ASME B16.47 series A (for NPSyy24"), BSEN 1092
5) Top flange: ISO5211
6) Connecting: wafer or lug
7) Size: 1-1 / 2" - 72"
8) Class: 150-300lb
9) Temperature: -20°C - 120°C
10) Body: WCB / 316 / 304
11) Disc: WCB / 316 / 304 / CF8 / CF8M
12) Stem: 13%Cr / 316 / 304 / SS17-4PH
13) Seat: high performance composite material (polymer)
14) Operation: lever, worm gear, pneumatic, electric, hydraulic or pneumatic-hydraulic actuator
15) Property: tight shut-off in either direction, offset shaft and triple eccentric disc, longer service life with less maintenance
16) Widely used in oil refining, chemical machinery industries, chemical and petrochemical processing, power station, pulp and paper manufacturing processing, desalination, steelmaking, coal and mining industries