Expanding Gate Valve

Expanding Gate Valve Suppliers in Oman: Tight Sealing for Reliable Flow Control

Middleeast Valve is one of the most trusted Expanding Gate Valve Suppliers in Oman, providing durable valve solutions designed for high-integrity sealing in process systems and pipelines. Our expanding gate valves are made for tough applications, ensuring tight shut-off and smooth movement, thus suitable for isolation applications in the oil and gas industries. 

Key Components: 

• Body: Generally manufactured from forged or cast steel for ruggedness 
• Segmented Gate (Slab & Wedge): Mechanically expands to seal against the body seats 
• Seats: Offers sealing surface on both sides of the gate 
• Stem: Moves the gate with non-rising or rising design 
• Bonnet: Covers and supports stem and assembly inside 
• Actuator (Optional): For remote or automatic control 

Working Mechanism: 

Expanding gate valves operate on a two-piece gate that expands radially as it travels to the closed position. This movement pushes the gate segments firmly against the valve seats to produce a positive, mechanical seal. In contrast with standard gate valves, the expanding motion is independent of fluid pressure for sealing effectiveness. 

Advantages: 

• Guarantees a consistent, bi-directional seal 
• Unparalleled for low-pressure and high-pressure services 
• Perfect for heavy use with little wear 
• Reduces leakage risk even in extreme conditions 
• Long life with field-serviceable parts 

Functions: 

Expanding gate valves are mainly utilized for blocking off sections of a pipeline. They provide zero-leakage shut-off and are particularly well-suited for applications demanding double block and bleed capabilities. Their mechanical seal action makes them suitable for systems that have to process frequent open-close cycles. 

Industries: 

• Oil and Gas Transmission Lines 
• Petrochemical Plants 
• Tank Farms 
• Refineries 
• Pipeline Maintenance Systems