Welded Bonnet Gate Valve, API 602, ASTM A105N, CL800 LB, SW

The China Welded Bonnet Gate Valve Factory specializes in producing forged gate valves that adhere to API 602 and ASTM A105N standards, utilizing carbon steel for durability and reliability. These valves are available in custom sizes to meet specific needs and are rated for Class 800 LB and PN130 pressure classes, making them suitable for high-pressure applications. They feature sweat (SW) ends for seamless connections and are manually operated, ensuring precise control.

Product Name: Welded Bonnet Gate Valve
Design Standard: API 602
Body Material: ASTM A105N Carbon Steel
Size: Custom (1/2-2 Inch)
Pressure: Class 800 LB, PN130
End Connection: SW Ends
Operation: Manual
Medium: Water, Oil, Gas
Temperature Range: -29°C to 595°C

Forged Steel Gate Valves are meticulously designed and manufactured in strict compliance with international standards such as API 602, ASME B16.34, DIN 3202, or their equivalents. These valves feature a compact yet extremely robust design, making them suitable 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 to provide a highly reliable seal. For welded bonnet valves, the bonnet is threaded in and torqued to an 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: 1/2-2 Inch (DN15-DN50) (for Forged Items)
» Design Pressure: Class 150-2500 LB (PN10-PN420)
» Materials:
   Carbon Steel, Alloy Steel, Stainless Steel, Duplex Steel, etc
   ASTM A105N, A350 LF2, A182 F11, F22, F304, F304L, F316, F316L
» Trim Materials: 13%Cr, ASTM A182 F11, F22, SS 304, SS 304L, SS 316, SS 316L, and other specials
» End Connections: SW, FNPT, BW, RF, RTJ, Grooved
» Design and Manufacture: ASME B16.34, API 602
» Face to Face (End to End): ANSI B16.10
» Flanged Connection: ANSI B16.5
» Test and Inspection: API 598, API 6D
» Butt Welded Ends: ANSI B16.5
» Threaded Ends: ASME B1.20.1
» Socket-Weld Ends: ASME B16.11

Structural Diagram

Product Features

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