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Oilong - Model API 6D / BS 1868 - Swing Check Valve
BS 1868 Check Valve, Swing Check Valve, Cast Steel Check Valve, High-Temperature Valve, Petrochemical Pipeline Valve. API 6D Swing Check Valve, Full-Bore Check Valve, High-Pressure Oil & Gas Valve, Piggable Pipeline Valve. Cast Steel Body: Heavy-duty construction for high-pressure oil, gas, and petrochemical pipelines.
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- Top-Entry Maintenance: In-line repair without pipeline disassembly (ideal for confined spaces).
- Full-Bore Piggable Design: Smooth bore for seamless pipeline cleaning tool passage.
- Multi-Orientation Installation: Horizontal or vertical (flow-upward) mounting flexibility.
- De-Clutchable Lock: Secure disc open position during pigging or maintenance.
- Design standard: BS 1868 / API 6D
- Face to face: ASMEB16.10 / API 6D
- Flange end: ASME B16.5 / ASME B16.47
- BW end: ASME B16.25
- Wall thickness: ASME B16.34
- Inspection and test: API 598 /API 6D
- Pressure and temperature: ASME B16.34
- Product range: NPS 2″~NPS 36″,CL150~CL2500
- Material: WCB､LCB､WCC､WC6､WC9､CF8､CF8M､CF3､CF3M､A890 4A etc.
- Zero Backflow Risk: Critical for oil & gas pipelines, chemical processing, and boiler feed systems.
- Low Maintenance: No manual intervention required for standard operation.
- Material Versatility: Bodies in cast iron, stainless steel (SS316), or alloys (Inconel®) for corrosive or high-temperature media.
- Pump discharge protection, Steam condensate recovery, HVAC chilled water systems, Refinery hydrocarbon transfer