➤ 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

✔︎ 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.

✔︎ Swing check valve is suitable for various operating conditions of pipeline for petroleum, chemical, pharmaceutical, chemical fertilizer and electric power industry.

✔︎ 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.