Middleeast Valve is one of the largest Gate Valve Suppliers in UAE, providing high-performance valves for industries that require safe and efficient flow control. Gate valves are widely used because of their simple design, durability, and ability to provide a complete shut-off when closed while allowing unobstructed flow when open.
Working of a Gate Valve
The mechanism of a gate valve is simple and effective:
- Opening the Valve – The gate (a flat or wedge-shaped barrier) is lifted from its seat by turning the handwheel or actuator. This action creates a clear passage, enabling free flow of liquids or gases.
- Closing the Valve – The gate is lowered back into the seat, blocking the flow completely. The precise fit ensures a leak-proof seal even under high pressure.
- Intermediate Positions – Gate valves are not designed for throttling applications. Partially open gates can cause turbulence and wear, reducing valve life.
Key Features of Gate Valves
- Full Bore Design – Allows maximum flow with minimal resistance.
- Tight Shut-Off – Provides reliable sealing to prevent leaks.
- High Durability – Built from robust materials like stainless steel, bronze, and cast iron to handle extreme conditions.
- Bidirectional Flow – Enables fluid movement in both directions, adding flexibility to system layouts.
Gate Valve Operation
- Manual Operation – A handwheel or lever raises and lowers the gate. Suitable for systems where frequent adjustments are not required.
- Automated Operation – Electric, pneumatic, or hydraulic actuators automate the valve for remote or continuous use.
Gate Valve Components
- Body – The outer shell that houses all internal components, built to withstand pressure and harsh conditions.
- Gate (Wedge or Disc) – The movable barrier that opens or closes to control flow.
- Seat – Provides a sealing surface for the gate when closed.
- Stem – Connects the actuator or handwheel to the gate; available in rising or non-rising types.
- Bonnet – Covers the body and holds the stem packing, preventing leaks.
- Handwheel/Actuator – Used to operate the valve manually or automatically.
- Packing – Prevents leakage around the stem.
Functions and Applications of Gate Valves
- Shut-Off Function – Primarily used for on/off flow control.
- High-Pressure Applications – Well-suited for pipelines operating under high pressure.
- Isolation of Flow – Provides effective isolation during maintenance or inspection.
- Wide Industrial Use – Common in oil & gas, water treatment, petrochemical plants, refineries, power generation, shipbuilding, textiles, paper mills, and chemical industries.
Advantages of Gate Valves
- Very low flow resistance when fully open.
- Reliable shut-off capability.
- Long service life with durable construction.
- Suitable for both high-pressure and high-temperature operations.
Types of Gate Valves
- Rising Stem Gate Valve
- Non-Rising Stem Gate Valve
- Bellow Seal Gate Valve
- Pressure Seal Gate Valve
- Cryogenic Gate Valve
- Forged Gate Valve
As trusted Gate Valve Suppliers in UAE, Middleeast Valve provides essential flow control solutions that ensure safety, efficiency, and durability across critical industries.
Description:
- Available materials: SS304, SS904, SS904L, SS316, Aluminium Bronze, Monel, Bronze, Brass, Duplex steel, Inconel, Incoloy, Titanium, WCB, CF8, CF8M, CF3, CF3M, WC1, WC6, WC9, Cast iron, super duplex
- Size: 1/2″- 64”
- Class: 150 to 2500
- Nominal Pressure: PN10 to PN450
- Operations: Hand Wheel, Gear operated, Electric actuated and Pneumatic Actuated
- Ends: Flanged (FF, RF, RTJ), Buttweld, Socket weld, Threaded
- Standards: API607, DIN, BS, ANSI, AWWA, ASME, API6D
Visit us: https://www.middleeastvalve.com/product-category/gate-valve/
