1). Desing And Manutacture: API 6D, ANSI B16.34, BS1868
2). Face to face/End to end: ANSI B16.10
3). Flange dimensions: ANSI B16.5
4). Butt welding dimension: ANSI B16.25
5). Pressure temperature lating: ANSI B16.34
6). Inspection and test: API 598 API 6D

Swing check valve Major parameter
1). Size: 2"-48"
2). Class: 150Lb--2500Lb
3). Material: A105 WCB WCC WC6 WC9 LCB LCC CF3 CF3M CF8 CF8M 4). Duplex stainless steel

We can design according to your requirment.
If any interest you, please do not hesitate to contact me.
Looking forward to your cooperation.