Through Conduit Slab Gate Valve, API 6D, A216 WCB, Custom

Product Name: Through Conduit Slab Gate Valve
Features: Full Bore, Rising Stem, OS&Y
Design Standard: API 6D
Body Material: ASTM A216 WCB
Size: Customized
Pressure: Customized
End Connection: RF Flanged
Operation: Handwheel

Through Conduit Slab Gate Valves are designed with a full-bore port, rising stem OS&Y, and pressure-energized floating seats and gate, ensuring a bubble-tight shutoff both upstream and downstream under varying differential pressures. These valves feature double block and bleed capability, along with automatic relief of excess body pressure, as standard components of the seat design. The smooth, continuous bore minimizes turbulence, and when open, the valve creates a pressure drop equivalent to that of a pipe segment with the same length and diameter. Additionally, the seat faces are positioned outside the flow stream, protecting them from erosive wear. Pigs and scrapers can 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

Features of Through Conduit Slab Gate Valve

» Bidirectional Sealing and Low Torque: The valve seat features an O-ring seal and a floating valve seat structure with pre-tension force, ensuring bidirectional sealing at both the inlet and outlet. This design reduces the opening and closing torque to half that of standard valves, allowing for easy operation.
» Smooth Flow Path: When fully open, the valve provides a smooth, straight-line flow path with minimal flow resistance and no pressure loss. Additionally, the valve can be cleaned by passing a rough ball through the pipeline.
» Self-Sealing Packing Structure: The valve incorporates a self-sealing packing structure that requires minimal maintenance and ensures lightweight operation with reliable sealing performance. An auxiliary sealing grease injection system in the packing box guarantees absolute sealing integrity, achieving zero leakage and addressing common leakage issues in traditional valve designs.
» Automatic Pressure Relief: When the flat gate valve is closed, it automatically relieves high pressure inside the chamber, ensuring safe operation under all conditions.
» Durable and Weather-Resistant: Featuring a fully enclosed structure, the valve offers excellent protection and is suitable for use in all-weather environments.