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Gate valve Class 600

Salient Feature

Gate Valves are largely designed to start or stop a flow when a straight line flow of fluid and minimum flow restriction are needed. In service, these gate valves are pretty much kept either fully open, or fully closed. Gate valves are primarily made up to start or stop a flow when a straight line flow of fluid and minimum flow restriction is needed.

In service, these Gate Valves are pretty much kept either fully open, or fully closed. When turned open, the disc of the gate is completely removed allowing materials to pass. This gives the gate valve good shut-off property and allows it a bidirectional movement. They cannot be quickly blocked or unblocked. The Gate Valves shakes when it is blocked.

Technical description

The gate valve is an OS&Y full bore with flexible wedge and rising stem. The body and the bonnet are made of castings and are connected by a flanged joint. The seating surfaces of the seats and the wedge are made in compliance with API 600. The seat rings are welded into the body. The gate valves are equipped with a back seat. The gate valves are a bi-directional sealing valves. The body-bonnet joint and the packing chamber are sealed with asbestos-free gasket and packing which guarantee a long life service. The requirement for an automatic body cavity pressure relief shall be specified in the purchase order. Pressure relief can be achieved by:

  • Drilling a hole through one disc of the wedge,
  • Special valve incorporated into the wedge,
  • External bypass,
  • Bolted Bonnet Valves - API 600
  • Basic Design: API 600 & ANSI/ASME B 16.34
  • Wall Thickness: ASME B 16.34
  • Face-to-Face Dimensions: ANSI,ASME B16.10
  • Flange End Dimensions: ANSI,ASME B16.5 (2” to 24”)
  • Butt-Weld End Dimensions: ANSI,ASME 16.34
  • Pressure, Temperature Rating ANSI,ASME B16.34
  • Inspection & Testing: API 598
  • Specification:
    Design API, British standard API 600
    Material Cast Steel CS ASTM A 216 WCB, WC6, WC9, WC5, LCB, CF8, CF8M, CF3M .
    Disc & Seat CS SS304.304L, SS316, 316L,
    Trims F6 SS 304,304L, 316,316L, satellite HF etc.
    Action Hand Wheel and Gear Box
    Rating ASA 600,
    Ends conn. Flanged ends, Butt weld, B16.10, B16.25
    Size 2" To 24"
    Mfg. BS 1414, API 600
    Testing API 598, BS 6755
    Application Oil, Gas, Air, Water, Chemicals, Pharmaceuticals , Acid, Foods, Vacuum, Heat Treatment, Paper & Sugar Industries, Petroleum Industries, Edible oil industries