Pressure Seal Gate Valve Manufacturer in India

Unitek Valves is a leading Pressure Seal Gate Valve Manufacturer in India, specializing in industrial valves engineered for high-pressure and high-temperature services. Based in Mumbai, India, we manufacture, supply and export valves for power generation, boiler systems, steam pipelines, refineries, petrochemical plants and other demanding process applications.

A Pressure Seal Gate Valve incorporates a pressure-energized bonnet sealing arrangement designed for severe operating conditions. Unlike a conventional bolted bonnet configuration, the pressure seal design utilizes internal system pressure to assist the bonnet sealing mechanism, making it particularly suitable for elevated pressure and temperature applications.

Our valves are available in different sizes, pressure classes, materials, end connections and operating configurations to meet specific plant and project requirements. Manual, gearbox, pneumatic and electric actuation options can also be provided depending on valve size and operating conditions.

Pressure Seal Bonnet Design

The pressure seal bonnet is an important feature of valves intended for demanding high-pressure services. As internal pressure acts on the sealing arrangement, it assists in maintaining an effective bonnet seal.

This compact bonnet construction is commonly specified for critical applications involving elevated pressures and temperatures where dependable pressure containment is essential.

Key design advantages include:

• Suitable for high-pressure applications
• Suitable for elevated-temperature service
• Pressure-energized bonnet sealing
• Robust construction for severe service
• Reliable isolation performance
• Suitable for steam and power-generation systems
• Available for higher ASME pressure classes

The appropriate design and material combination is selected according to operating pressure, temperature, fluid and applicable project specifications.

API 600 Pressure Seal Gate Valves

Unitek manufactures API 600 Pressure Seal Gate Valves in accordance with applicable international valve standards and customer requirements. Depending on the project specification, design and testing can comply with standards including API 600, ASME B16.34, ASME B16.10 and API 598.

Attention is given to pressure containment, seating performance, dimensional accuracy, material selection and reliable operation throughout the manufacturing process.

Valves can be supplied with flanged or butt-weld ends, while suitable trim and seating arrangements are selected according to the service medium and operating conditions.

High Pressure & High Temperature Gate Valves

Our High Pressure Gate Valves are engineered for applications where conventional valve construction may not be suitable for demanding pressure and temperature conditions.

Depending on size, material and project specifications, valves can be offered in higher pressure ratings including:

• ASME Class 600
• ASME Class 900
• ASME Class 1500
• ASME Class 2500

The higher pressure classes are particularly suitable for applications such as main steam lines, superheated steam systems, boiler piping and high-pressure process lines.

For high-temperature applications, material selection is particularly important. Body, bonnet, gate, seat, stem, gasket and packing materials are selected according to the specified operating conditions.

Materials of Construction

Unitek Valves offers a wide range of carbon steel, alloy steel and stainless steel materials depending on pressure, temperature, corrosion characteristics and service requirements.

Common body materials include:

• ASTM A216 Gr. WCB
• ASTM A217 Gr. WC6
• ASTM A217 Gr. WC9
• ASTM A217 Gr. C12A
• ASTM A351 Gr. CF8
• ASTM A351 Gr. CF8M
• Stainless Steel 304 / 316
• Other alloy and special materials as required

WCB Pressure Seal Gate Valves can be supplied for suitable carbon steel applications, while WC6 and WC9 Pressure Seal Gate Valves are available for applications requiring alloy steel construction.

The final material selection should be based on design pressure, design temperature, process medium, applicable piping specification and customer requirements.

IBR Approved Pressure Seal Gate Valves

Unitek Valves also supplies IBR Approved Pressure Seal Gate Valves for applicable boiler and steam service requirements. Valves can be offered with required inspection, testing and documentation according to applicable IBR requirements and the agreed project specification.

IBR valves are particularly relevant for applications involving:

• Boiler Systems
• Main Steam Lines
• High-Pressure Steam
• Superheated Steam
• Thermal Power Plants
• Power Generation Systems
• Steam Process Piping

As an experienced IBR valve manufacturer in India, Unitek Valves supports applicable project documentation and inspection requirements based on the scope of supply.

Testing & Quality Control

Each valve is subjected to applicable inspection and testing requirements to verify pressure integrity, seating performance and functionality.

Depending on the applicable standard and approved inspection plan, testing may include hydrostatic shell testing, seat leakage testing and operational testing. Material certificates and additional inspection documentation can also be provided as specified by the customer or project.

Special inspection and testing requirements can be accommodated where agreed at the order stage.

Applications & Industries

Pressure seal construction is particularly suited to demanding industrial services involving elevated pressure and temperature. Typical applications include:

• Thermal Power Plants
• Power Generation Plants
• Boiler Systems
• Main Steam Lines
• Superheated Steam Lines
• High-Pressure Steam Systems
• Refineries
• Petrochemical Plants
• Oil & Gas Facilities
• Chemical & Process Plants
• High-Temperature Process Piping

The combination of pressure-energized bonnet sealing, robust construction and suitable high-temperature materials makes these valves an effective solution for critical isolation applications.

Pressure Seal Gate Valve Supplier & Exporter in India

As an established Pressure Seal Gate Valve Supplier in India, Unitek Valves supplies engineered valves according to customer specifications and applicable international standards. From Mumbai, Maharashtra, we serve customers across India and support overseas industrial projects as a Pressure Seal Gate Valve Exporter from India.

Valves can be configured according to required size, ASME pressure class, body material, trim, end connection, operating pressure, temperature, actuation and IBR requirements.

Unitek Valves focuses on robust construction, dependable isolation, quality testing and compliance with applicable standards for demanding high-pressure and high-temperature industrial applications.