Design and manufacture standards:
Wafer and lug: API 609, DIN 3354.
Flange and weld: BS 5155, EN 598.
Inspection and test standards: API 598, DIN 3230, BS 5146.
F-to-F: Wafer and lug: API 609, DIN 3202, K2.
Flange: ISO 5752
End flange dimension:
ASME B16.5 (for NPS<24 Inch), ASME B16.47 series B, API 605, ASME B16.47 series A, MSS SP-44 (for NPS>24 Inch), or BSEN 1092.
Top flange: ISO 5211.
Connecting: Wafer, Lug, Flange, Weld.
Size: 1-1/2 Inch - 40 Inch, DN40-DN1000.
Pressure: Class 125 - 300 LB, PN6-PN40.
Temperature: -20℃ - 200℃.
Body: Cast iron, ductile iron, ASTM A216 WCB, ASTM A182 F304, ASTM A182 F316.
Disc: Ductile iron, ASTM A216 WCB, SS 304, SS 316, ASTM A351 CF8, ASTM A351 CF8M.
Stem: 13% Cr, SS 316, SS 304, SS17-4pH.
Seat: NBR, EPDM, PTFE, R-PTFE, PPL, Stainless Steel.
Operation: Lever, worm gear, pneumatic, electric, hydraulic or pneumatic-hydraulic actuator.
Property: Longer service life and zero leakage.
Widely used in many industries such as: Water treatment, foodstuff, beverage, pharmaceutics, desalination, steel-making, chemical machinery industries, pulp and paper manufacturing processing.