Gate Valve, Indian Manufacturer, Indian Supplier,Indian Exporters
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Gate Valve
Gate Valve


Valves are used for many industrial applications like for closing or modifying the passage through a pipe, preventing the process flow from reversing, for corrosion resistance, for chemical handling and for many more such applications. They are offered in various price ranges in the market, which makes it comfortable for every pocket.

A gate valve, is a valve that opens by lifting a round or rectangular gate/wedge out of the path of the fluid. The distinct feature of a gate valve is the sealing surfaces between the gate and seats are planar. The gate faces can form a wedge shape or they can be parallel. Gate valves are sometimes used for regulating flow, but many are not suited for that purpose, having been designed to be fully opened or closed. When fully open, the typical gate valve has no obstruction in the flow path, resulting in very low friction loss. Gate valves are characterized as having either a rising or a non rising stem. Rising stems provide a visual indication of valve position. Non rising stems are used where vertical space is limited or underground. Bonnets provide leak proof closure for the valve body. Gate valves may have a screw-in, union, or bolted bonnet. Screw-in bonnet is the simplest, offering a durable, pressure-tight seal. Union bonnet is suitable for applications requiring frequent inspection and cleaning. It also gives the body added strength. Bolted bonnet is used for larger valves and higher pressure applications. Another type of bonnet construction in a gate valve is pressure seal bonnet. This construction is adopted for valves for high pressure service, typically in excess of 15 mpa (2250 psi).

A gate valve employs a tapered metal gate that is vertically movable relative to a metal valve seat secured within the valve body and a plug with one or more resilient lugs secured within the valve body for cooperation with the metal gate. One face of the gate and the metal valve seat define a metal-to-metal seal for shutting off the flow of fluid through the flow passage within valve body, while the lug or lugs, and press against the opposite face of the gate and cam the gate into leak-proof sealing engagement with the valve seat. The plug compensates for slight irregularities in the finish of the gate and valve seat as well as for wear attributable to repeated usage. Due to the simplified design of the valve, such valve can be periodically serviced while on-line in the field with attendant economies.



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Gate Valve, Indian Manufacturer, Indian Supplier, Indian Exporters