GATE VALVE

Forged Steel Gate Valves

SUNGO valves are available in three bonnet designs. The first design is the Bolted Bonnet, with male-female joint, spiral wound gasket, made in F304L/graphite, ring joint gasket are also available on request. The second design is the welded bonnet, with a threaded and seal welded joint. On request a full penetration strength welded joint is available. The third design is the pressure seal bonnet, with a threaded and pressure seal bonnet joint.

Gate Valve Design Construction and Specifications

  • SUNGO gate valves conform to API 602, and ASME B 16.34
  • Each are tested according to API 598, and marking is per MSS SP-25.

Construction is as follows

  • Full Port or Conventional Port
  • Outside Screw and Yoke (OS & Y)
  • Two piece self-aligning packing gland
  • Bolted bonnet with spiral wound gasket, threaded and seal welded bonnet or threaded and pressure seal bonnet
  • Integral backseat
  • Socket weld Ends toASMEB16.11
  • Screwed Ends (NPT) to ANSI/ASME B1.20.1

Forged Steel Gate Valve Class800

Standard Material Specification

Note : Other materials are available upon request. 
           CS=Carbon steel; AS=Alloy steel; SS=Stainless steel.

Dimension (mm) and Weight (kg)

Forged Steel Gate Valve Class900,1500

Standard Material Specification

Note: Other materials are available upon request.
           CS=Carbon steel; AS=Alloy steel; SS=Stainless steel.

Dimension (mm) and Weight (kg)

Forged Steel Pressure - Seal Gate Valve Class900,2500

Standard Material Specification

Note: Other materials are available upon request.
           CS=Carbon steel; AS=Alloy steel; SS=Stainless steel.

Dimension (mm) and Weight (kg)

Cryogenic Forged Steel Gate Valve Class800

Standard Material Specification

Note : Other materials are available upon request.
            AS=Alloy Steel; SS=Stainless steel.

Dimension (mm) and Weight (kg)

Forged Steel Extended Body Gate Valve Class800

The Specific Connection Code

Standard Material Specification

Note : Other materials are available upon request.
            CS=Carbon steel; AS=Alloy steel; SS=Stainless steel.

Dimension (mm) and Weight (kg)

Forged Steel Integral Flanged End Gate Valve Class150~600

Standard Material Specification

Note: Other materials are available upon request. CS=Carbon steel; AS=Alloy steel; SS=Stainless steel.

Dimension (mm) and Weight (kg)

Forged Steel Integral Flanged End Gate Valve Class900~1500

Standard Material Specification

Note: Other materials are available upon request. CS=Carbon steel; AS=Alloy steel; SS=Stainless steel.

Dimension (mm) and Weight (kg)

Forged End Pressure-Seal Gate Valve Class900~2500

Standard Material Specification

Note: Other materials are available upon request. CS=Carbon steel; AS=Alloy steel; SS=Stainless steel.

Dimension (mm) and Weight (kg)