Class 2500 LB Gate Valve, API 602, ASTM A105N, 4 IN, PSB, SW

The Class 2500 LB gate valve from China is a forged carbon steel valve, designed for high-pressure applications. It features a pressure seal bonnet, is available in 4-inch (DN100) size with PN420 rating, and has SW ends. Certified to API 602 and ASTM A105N, it operates manually, ensuring reliable performance.

Product Name: Pressure Seal Bonnet Gate Valve
Design Standard: API 602
Body Material: ASTM A105N
Size: 4 Inch, DN100
Pressure: Class 2500 LB, PN420
End Connection: SW
Operation: Manual
Medium: Water, Oil, Gas, etc
Temperature Range: -29°C to 595°C

Pressure Seal Gate Valves are meticulously designed and manufactured in strict compliance with international standards such as API 602, ASME B16.34, DIN 3202, or equivalent. These valves feature a compact yet extremely robust design, making them ideal for high-pressure and high-temperature applications. The optional solid CoCr alloy wedge ensures low friction and extended service life. The packing rings are precompressed to 4000 psi, providing a highly reliable seal. For welded bonnet valves, the bonnet is threaded in and torqued to a precisely engineered torque value, and the body-bonnet joint is strength-welded, offering dual protection against leakage through the body, bonnet threads, and strength-weld. The fully guided wedge reduces wear on seating surfaces. Optional designs are available with double packing, leak-off connections, live-loading, and a packing blowout feature for easy removal of old packing.

Technical Specification

» Size Range: 1/2-4 Inch (Forged items)
» Design Pressure: Class 900 - 2500 LB (PN160-PN420)
» Materials: Carbon Steel, Alloy Steel, Stainless Steel, Duplex Steel, and other custom alloys
» Trim Materials: 13% Cr, ASTM A182 F11, F22, SS 304, SS 304L, SS 316, SS 316L, and other special alloys
» End Connections: Butt Weld (BW), Ring Type Joint (RTJ) Flange
» Design & Manufacture Standards: ASME B16.34, API 602
» Face-to-Face (End-to-End): ANSI B16.10
» Flanged Connections: ANSI B16.5
» Testing & Inspection: API 598, API 6D
» Butt Weld Ends: ANSI B16.5

Product Features

» OS&Y, Outside Stem and Yoke
» Metal-sealed (API Trim # 1, #5, #8, #10, etc.)
» Optional Locking Device or Stem Extension
» Optional Welded Bonnet or Pressure Sealed Bonnet
» Optional Direct Mounting to ISO 5211
» Full Bore or Reduce Port