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Design standards and product range
Design basis: ASME B16.34, GB12236, API6D
Flanged ends: ASME B16.5, GB9113
Butt-welding ends: ASME B16.25
Face-to-face dimension: ASME B16.10, GB12221
Inspection and test: API598, API6D, JB/T9092
Pressure rating: Class150~2500, PN16~PN420
Product range: 2"~36", DN50~DN900
Materials of main parts: WCB, LCB, WC6, WC9, C5, CF8M, Alloy20
Trim materials: as per API600
steel check valve
