Pressure Seal Bonnet Gate Valves, A105N, 1 Inch, CL1500, RTJ

China Pressure Seal Bonnet Gate Valves Factory manufactures API 602-compliant forged carbon steel gate valves with RTJ flanged ends for high-pressure sealing. These 1-inch (DN25) valves are constructed from ASTM A105N material, rated for Class 1500 LB (PN250), and feature a handwheel for precise operation. Designed for steam, oil & gas, and power applications, they ensure reliable shut-off in extreme pressure and temperature conditions.

Product Name: Pressure Seal Gate Valves
Design Standard: API 602
Body Material: ASTM A105N, Carbon Steel
Size: 1 Inch, DN25
Pressure: Class 1500 LB, PN250
End Connection: RTJ Flanged
Operation: Handwheel
Medium: Water, Oil, Gas, etc
Temperature Range: -29°C to 595°C

Pressure Seal Gate Valves are designed and manufactured in strict accordance with international standards such as API 602, ASME B16.34, DIN 3202, or equivalent. They feature a compact yet extremely robust design, 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. This offers double protection against leakage through the combination of body, bonnet threads, and strength-weld. The fully guided wedge reduces wear on seating surfaces. Optional designs are available with double packing, leak-off connection, live-loading, and a packing blowout feature for easy removal of old packing.

Technical Specification

» Size Range: 1/2-4 Inch (DN15-DN100) (for Forged Items)
» Design Pressure: Class 900-2500 LB (PN150-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: BW, RTJ
» 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

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