ASTM A216 WCB Slab Gate Valve, API 6D, 14 Inch, 900 LB, RTJ

Product Name: Through Conduit Slab Gate Valve
Design Standard: API 6D
Body Material: ASTM A216 WCB
Size: 14 Inch, DN350
Pressure: Class 900 LB, PN150
End Connection: RTJ Flanged

Slab Through Conduit Gate Valves are manufactured with a full-bore port, rising stem OS&Y (Outside Stem and Yoke), and feature floating seats and gates that are pressure-energized. This design ensures bubble-tight shut-off both upstream and downstream, even under low and high differential pressures. The valves offer double block and bleed capability, along with automatic relief of excess body pressure, as standard features.

The smooth, continuous bore minimizes turbulence within the valve. When fully open, the valve produces a pressure drop equivalent to that of a section of pipe with the same length and diameter. The seat faces are positioned outside the flow stream, protecting them from erosive action. This design also allows pigs and scrapers to pass through the valve without causing damage.

Technical Specification

» Nominal Diameter: NPS 2-48 Inch(DN50-DN1200)
» Design Pressure: Class 150-2500 LB(PN10-PN420)
» Material: Cast Carbon Steel, Stainless Steel, Duplex Steel, Special Materials, etc.
» End Connections: BW, RF, RTJ
» Operation: Hand wheel, bevel gear, electric, pneumatic
» Design and Manufacture: API 6D, GB/T 19672
» Face to Face (End to End): API 6D, GB/T 19672
» Flanged Connection: ANSI B16.5, GB/T 9113
» Butt Welded End: ANSI B16.25
» Test and Inspection: API 598, JB/T 9092
» Temperature Range: -29°C to 595°C
» Medium: Water, gas, oil, etc.
» OS&Y: Outside Stem and Yoke
» Resilient or Metal Seat Options
» Optional: Locking device or stem extension, Top works to ISO 5211
» Port: Full port

Product Features

» The valve seat adopts an O-ring seal and a floating valve seat structure with pre-tensioning force, enabling bidirectional sealing of the inlet and outlet of the flat gate valve. The opening and closing torque of this structure is only half that of ordinary valves, making valve operation easy and smooth.
» When fully open, the channel is straight, offering very low flow resistance and no pressure loss. The valve can be cleaned by passing a rough ball through the pipeline.
» Features a packing structure with self-sealing capability, requiring no frequent adjustments. The opening and closing are extremely lightweight with reliable sealing performance. The packing box is equipped with an auxiliary grease injection structure, ensuring absolute reliable sealing and achieving zero leakage. This design addresses the common issue of leakage at the packing of standard valves.
» When the flat gate valve is closed, it can automatically release high pressure inside the chamber, ensuring safe operation.
» Fully enclosed structure with excellent protective performance, suitable for all-weather conditions.