Pressure Seal Gate Valve, A352 LCB, API 600, 8 Inch, 1500 LB

Product Name: Pressure Seal Bonnet Gate Valve
Design Standard: API 600 and ASME B16.34
Body Material: ASTM A352 LCB
Size: 8 Inch, DN200
Pressure: Class 1500 LB, PN250
End Connection: BW
Operation: Bevel Gear

Pressure seal gate valves are designed in accordance with API 600 and ASME B16.34 for high-temperature and high-pressure services, making them widely used in fossil fuel power plants. Compared to bolted bonnet joint valves, these valves provide highly reliable sealing at the bonnet joint, resulting in a more compact, rigid design. They are also more cost-effective to maintain in high-temperature and high-pressure environments.

Technical Specifications

» Nominal Diameter: NPS 2-24 Inch (DN50-DN600)
» Design Pressure: Class 600-2500 LB (PN100-PN420)
» Material: Cast or Forged Carbon Steel, Stainless Steel, Duplex Steel, Special Materials, etc.
» Trim Materials: Available in 13% Cr, ASTM A182 F11, F22, SS 304
» End Connections: BW, RF, RTJ
» Operation: Hand wheel, bevel gear, electric, pneumatic
» Temperature Range: -29°C to 595°C
» Medium: Water, gas, oil, etc.
» Design and Manufacture: AMSI B16.34, API 600, API 6D, BS 1414
» Face-to-Face (End-to-End): ANSI B16.10, API 6D
» Flanged Connection: ANSI B16.5
» Butt Welded End: ANSI B16.25
» Test and Inspection: API 598, API 6D
» Backup Ring: Absorbs thrust applied by internal pressure
» Thrust Ring: Protects the soft metallic gasket from deformation
» Gasket: Unique angular design for superior sealing
» Optional: Bypass system, live loading packing, and O-ring seal available upon request

Product Features

» The design and material selections of KOSEN Pressure Seal Gate Valves offer excellent performance in steam-generation stations, industrial chemical plants, and thermal power plants. These valves are typically available in cast steel and forged steel body designs, making them a versatile choice for various application needs.
» Not only do these gate valves feature a simple structure and reliable operation, but they also allow slight flexible deformation to compensate for deviations in the sealing face angle during manufacturing, improving overall performance. Additionally, the seat and gate disc sealing surfaces are overlaid with iron-base alloy, Co-base alloy, or carbide alloy to ensure long service life and durability.