Applicable standards and specifications
Design and manufacturing: ASME B16.34/BS1868/ API 6D/API594/DIN3840/3356
Face to face: ASME B16.10/API594/DIN3202-F6/F1/EN558-1
End flanges: ASME B16.5/DIN2543/2544/2545
Butt welding ends: ASME B16.25
Inspection and test: API 598/API 6D/DIN3230/EN12266-1
Design descriptions
BC, bolted cover
Swing type, anti-rotation disc
Renewable seat rings
Non-penetrate disc shaft
Horizontal or vertical service
Flanged or butt-welding ends
Lift type check valve
BC, bolted cover
Lift type, piston type disc
Renewable seat rings
Horizontal service
Flanged or butt-welding ends
Wafer dual-plate check valve
One piece body
Wafer butterfly swing type
Dual-plate disc, long pattern
Renewable split disc
Horizontal or vertical service
Wafer ends
Available with flanged ends