PORO is a professional manufacturer of various valves, we already have API6D, API600, API609, ISO, CE certificates.

Check valve

Size: 1/2"(DN15)-42"(DN1050)
Pressure: 150LB-2500LB / PN16- PN320
Material: A105, F11, F22, F51, F91, LF2, LF3, WCB, WCC, WC6, WC9, C5, C12, C12A, LCB, LCC, LC1, LC3, CF8, CF8M, CF3, CF3M, CF8C etc.
Medium: Water, oil, gas, steam

Standards:
Design and Manufacture: Cast steel check valve to BS 1868, ASME B 16.34 and API 6D; Forged steel check valve to API 602'

Inspection and Test: API 598 or API 6D

End flange dimension: ASME B 16.5(for NPS≤24); ASME B 16.47 series B, API 605 or ASME b 16.47 series A, MSS SP-44(for NPS bigger than 24)

BW end dimension: ASME B 16.25

Socket-weld dimension: ASME B 16.11

Face to face and end to end: ASME B16.10

Pressure-temperature ratings: ASME B 16.34

Wall thickness dimension: API 600 and BS 1868