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Gate Valve
 
Flowjet have a wide range of GATE VALVES in variety of types, sizes, pressure ratings and materials, with wafer type, screwed, welded or flanged connections. Flowjet Manufacture Gate valves in every size

ranging from the smallest to the largest size Gate Valve name is derived from the operation of the Gate valve. The Valve Acts like a Gate to stop or allow the flow through the valve. The valve can be opened by lifting the wedge out of the path of the flow Gate valves are actually designed for closing & opening full , so they are not suitable for the Throttling purpose. When the Gate valve is fully

open, there is no Obstruction in the Flow path, resulting in very low pressure drop, & they are often suitable for the Hot Tapping & Pigging.
Gate Valve

Gate Valves are actually designed for use with the flow of liquids and Gases but there are variation to cope with the specific requirements.

For example, one problem with wedge gate valves in steam service is that when the valve is closed and steam is brought into the system, the metal wedge expands and can get stuck, making opening the valve difficult or impossible.

Knife-gate valves are used when deposit may block a normal wedge gate. The gate is a narrow plate with a shaped edge to cut through solids. They are ideal for applications with a high suspension of solids or fibrous content such as powders, slurry, ash and pulp. Care should be taken when specifying knife gate valves to state whether flow is uni- or bi-directional.
 
AVAILABLE IN DIFFERENT TYPES
Variants -Metal Seated Wedge Gate Valves
-Resilient Seated Wedge Gate Valves
-Cap top, hand wheel, gearbox or actuated option
Mfg Design API-600, BS1414,ASME B16.34
Face To Face Dimension As Per ASME B16.10 / ISO 5752/ BS 2080
End Connection Flange & Butt Weld
SPECIAL FEATURE
Anti-frictional Ball bearings in higher sizes and classes.
The strength of Stem to Gate connection is stronger than the strength of the Stem at the root of the operating thread
Outside screw and yoke construction
valves with backseat arrangement
Bi-directional shut-off
Gland is of self aligning
Deep stuffing box
Low Pressure Drop & Lower Erosion
The Body to Bonnet is male and female joint and ring joint is used in higher classes
MATERIAL
No. DESCRIPTION
1 Body
2 Seat ring
2a Soft seated ring
3 Disc
4 Spring
4b Hinge
5 Flange seal
6 Stem shaft / hinge pin