Bellow Seal Gate Valve Manufacturer in USA 

SVR Global is a Bellow Seal Gate Valve Manufacturer in USA, delivering engineered valves designed for industries where leakage prevention and operational safety are critical. These valves are widely supplied across Houston, Texas, California, and New York, supporting oil & gas, chemical, power, and refinery projects. 

What is a Bellow Seal Gate Valve? 

A bellow seal gate valve is an isolation valve designed with a flexible metallic bellow that forms a secure seal between the valve stem and the body. Unlike conventional gate valves that depend on gland packing, the bellow eliminates stem leakage and ensures safe containment of hazardous, flammable, or high-temperature media. This construction reduces the risk of emissions, lowers maintenance needs, and increases operational reliability in demanding service conditions. 

Functions and Working of Bellow Seal Gate Valves 

• Bellow seal gate valves are primarily used to: 

• Prevent Leakage – The metallic bellow provides a hermetic seal that eliminates stem leakage. 

• Shut Off Flow Completely – The gate disc ensures tight closure for full isolation of the medium. 

• Operate at High Temperatures – Designed to withstand extreme heat without compromising sealing integrity. 

• Extend Service Life – By reducing wear on conventional packing elements, the valve achieves longer operational cycles. 

Working Principle: 

When the handwheel or actuator is operated, the stem moves the gate up or down. The metallic bellow expands or contracts with stem movement, maintaining a seal throughout the valve cycle. This prevents external leakage and protects operators and equipment from exposure to hazardous media. 

Key Components of a Bellow Seal Gate Valve 

• Valve Body & Bonnet – Manufactured in carbon steel, stainless steel, and alloy steel. 

• Metallic Bellow – Flexible seal preventing leakage along the stem. 

• Gate/Disc – Provides shut-off with tight sealing. 

• Seat Rings – Hardened sealing surfaces for durability. 

• Stem & Handwheel/Actuator – Ensures smooth operation. 

• Secondary Packing – Provides backup sealing if the bellow fails. 

Types of Bellow Seal Gate Valves 

SVR Global supplies a range of bellow seal gate valves in USA: 

• Forged Steel Bellow Seal Gate Valve – Compact and durable for high-pressure systems. 

• Cast Steel Bellow Seal Gate Valve – Suitable for large pipeline networks. 

• Rising Stem Bellow Seal Gate Valve – Easy visual indication of valve position. 

• Non-Rising Stem Bellow Seal Gate Valve – Space-saving design for limited installations. 

• Manual, Electric, and Pneumatic Operated Designs – Available for diverse automation needs. 

Applications in USA Industries: 

Bellow seal gate valves are essential in industries where even minimal leakage can cause safety, environmental, or operational risks. They are widely applied in: 

• Oil & Gas Refineries – Handling hydrocarbons and hazardous fluids. 

• Chemical Processing Plants – Managing corrosive and toxic chemicals. 

• Power Generation Facilities – Boiler and steam isolation services. 

• Petrochemical Industries – Safe handling of flammable media. 

Why Choose SVR Global? 

SVR Global is a Bellow Seal Gate Valve Manufacturer in USA, providing valves designed to eliminate stem leakage, improve plant safety, and deliver extended service life. All valves are produced in compliance with international standards to meet the requirements of critical industries such as API, ASME, and ISO. Available in forged and cast steel designs, our valves are offered in a wide range of sizes and pressure classes to match complex industrial requirements. With supply across major US states, we provide engineered products that minimize fugitive emissions, extend service life, and improve plant safety. Our technical expertise and product range make us a dependable partner for EPC contractors and end-users in oil & gas, power, and chemical sectors. 

Description 

• Materials: Carbon Steel (A216 WCB, WC6, WC9), Stainless Steel (SS304, SS316), Alloy Steel 

• Size Range: ½” – 24” 

• Class Ratings: ASME Class 150 – 2500 / PN16 – PN420 

• Ends: Flanged, Socket Weld, Butt Weld, Threaded 

• Operations: Manual, Electric Actuated, Pneumatic Actuated 

Visit us: https://www.svrglobal.net/product-category/bellow-seal-gate-valve/