API 6D/BS 1868 Swing Check Valve

1. As the channel within the valve is in streamline form, the flow resistance is smaller than lifting check valve, it's suitable for low flow large-caliber application without frequently change in flow. However, it's not suitable for pulsating flow for sealing performance poorer than lifting check valve.
2. Swing check valve is suitable for various operating conditions of pipeline for petroleum, chemical, pharmaceutical, chemical fertilizer and electric power industry.
3. Swing check valve is suitable for clean medium like water, oil, steam, acid medium, and not suitable for medium with solid particles and great viscosity.

Product design and scope
Design standard:BS 1868/API 6D
Length of structure:ASMEB16.10/API 6D
Flange connecting end:ASME B16.5/ASME B16.47
Butt welding connecting end:ASME B16.25
Wall thickness:ASME B16.34
Inspection and test:API 598 /API 6D
Pressure and temperature rating:ASME B16.34
Product scope:NPS 2″~NPS 48″,CL150~CL2500
Main body material:WCB､LCB､WCC､WC6､WC9､CF8､CF8M､CF3､CF3M､A890 4A etc.