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Graduate Aptitude Test in Engineering (GATE)

http://gain-more.blogspot.in/2012/06/few-important-acronyms-and-expansions.html

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Specialityvalve is one of the biggest producer and supplier of Gate valve Manufacturer in India.

Gate Valve is a control valve that either allows the fluid flow or stops it depending upon our use. It is a most common valve for water valve systems. It is a linear motion valve that starts or stops the flow. It got its name from the element sliding into the flow stream to provide shutoff, hence acting like a gate. Thus it is used either in the fully closed or fully open positions.

Gate valves require very little space along the pipe axis and hardly restrict the flow of fluid. When the gate is fully opened it enables the gate valve to offer straightway flow with very little pressure drop.

Gate Valves are also called as Sluice Gate Valve. Automated Gate Valve also exists which are either electric or pneumatic actuator, but as manual gate valve are cost effective hence it is affordable and as gate valves are used lesser.

Gate valves should not be used for regulation or throttling of flow because accurate control is not possible.

Components of Gate Valve

● Body

● Bonnet

● Body Seat

● Stem Nut

● Yoke Nut

● Stem

● Handwheel

● Gasket

Working of Gate Valve

The main three components of Gate Valve are: body, bonnet and stem

When the handwheel is rotated which rotates the stem and due to it there is vertical movement of the gate via threads. They are considered multi-turn valve as it requires more than 360 degree to fully open the gate. When the gate is lifted from the flow path, it is open and when it returns it is closed and hence the flow is stopped.

Types

  1. Knife Gate Valve

  2. Wedge Gate Valve

  3. Parallel Slide Gate Valve

  4. Slab Gate Valves

  5. Pressure Seal Gate Valve

  6. Flat Gate Valve

  7. Below Seal Gate Valve

  8. Forged Gate Valve

Advantages

• Have low friction

• They provide laminar flow

• They help to reduce energy and low cost of ownership

• There is small flow resistance

• Structure length is relatively short

Industries

● Oil and Gas

● Automotive

● Marine

● Chemical

● Petrochemical

Description

Available materials: SS304, SS904, SS904L, SS316, Aluminium Bronze, Monel, Bronze, Brass, Duplex steel, Inconel, Titanium, WCB, CF8, CF8M, CF3, CF3M, WC1, WC6, WC9, Cast iron, SPUER DUPLEX

Size: 1/2″- 64”

Class: 150 to 2500

Nominal Pressure: PN10 to PN450

Operations: Hand Wheel operated Gate valve, Gear operated Gate valve, Electric actuated Gate valve and Pneumatic Actuated Gate valve

Ends: Flanged(FF,RF,RTJ), Buttweld, Socket weld, Threaded

Standards: API607, DIN, BS, ANSI, AWWA, ASME, API6D

With an experienced technical team, Specialityvalve provides best Gate Valve Manufacturer in India.

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