API 6D swing check valves that Topper provides have the following features:
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 Details:
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 Inch - NPS 48 Inch, CL150 - CL2500.
Main body material: ASTM A216 WCB, ASTM A352 LCB, ASTM A216 WCC, ASTM A217 WC6, ASTM A217 WC9, ASTM A351 CF8, ASTM A351 CF8M, ASTM A351 CF3, ASTM A351 CF3M, ASTM A890 4A, etc.