Full Opening Swing Check Valve, API 6D, WCB, 10 IN, CL900 LB

The Full Opening Swing Check Valve is designed for reliable backflow prevention in high-pressure systems. Constructed with a carbon steel ASTM A216 WCB body, it features a 10-inch size (DN250) and is rated for a Pressure Class of 900 LB and PN150. Compliant with API 6D standards, the valve is equipped with a bolted bonnet for secure assembly and RTJ (Ring Type Joint) ends for a leak-proof seal. Ideal for industrial applications such as pipelines and oil & gas, it ensures efficient flow control and durability in demanding environments.

Product Name: Full Opening Swing Check Valve
Type: Swing Check Valve
Design Standard: API 6D
Body Material: ASTM A216 WCB
Size: 10 Inch, DN250
Pressure: Class 900 LB, PN150
End Connection: RTJ Flanged
Medium: Water, Gas, Oil, etc
Temperature Range: -29°C to 595°C

Product Description

Universal Cast Steel Check Valves are engineered and manufactured to meet International Standards such as API 6D, BS1868, ASME B16.34, or equivalent. Designed to minimize flow resistance and pressure drop, these valves are ideal for horizontal installations only. The valve features a lapped and screwed seat ring that ensures tight shutoff and extended service life. The disc is precisely designed, machined, and guided for efficient automatic shutoff under zero pressure. These valves offer a compact structure and low emission service. The standard configuration of the swing check valve includes a bolted cover and a free-swinging clapper, which responds to flow conditions. While these valves are best suited for horizontal pipelines, dampers or counterweights may be necessary for heavier disc weights to prevent chattering.

Technical Specifications

» Nominal Diameter: NPS 2–24 Inch (DN50–DN600)
» Design Pressure: Class 150–2500 LB (PN10–PN420)
» Materials: ASTM A216 WCB, WCC, A217 WC6, WC9, C5, C12A, A352 LCB, LCC, A351 CF8, CF8M, CF3, CF3M, CF8C
» End Connections: Flanged (FF, RF, RTJ) to international standards
» Design and Manufacture Standards: BS 1868, API 6D, DIN 3352
» Face-to-Face (End-to-End): ANSI B16.10, EN 558 Series
» Flanged Connections: ASME B16.5, ASME B16.47, EN 1092 Series
» Butt Welded End: ANSI B16.25
» Test and Inspection Standards: API 598, ISO 5208, EN 12266-1
» Temperature Range: -29°C to 595°C
» Medium: Water, gas, oil, etc.

Product Features

Efficient Flow Passage: The swing check valve prevents backflow with minimal pressure drop. The disc swings into the open position as media flows through the valve, and back pressure holds it in the closed position.
Versatile Installation: Swing check valves can be installed in both horizontal and vertical pipelines, but must be installed in proper relation to the media flow, as indicated by the flow direction arrow marked on the body.
Customizable Accessories: A variety of accessories such as bypasses, locking devices, counterweights, and others are available to meet specific customer requirements.