A Pressure Seal Gate Valve is a type of gate valve where (unlike a conventional bolted-bonnet valve) the sealing between the body and bonnet is achieved through pressure-driven sealing rather than by using bolts. As system pressure increases, the joint seals tighter due to the design of the pressure-assisted components — making them ideal for high-pressure and high-temperature service.
Applications
• Oil & Gas
• Thermal & Nuclear Power Plants
• Refineries
• Petrochemical & Chemical Plants
• High-Pressure Steam Systems
• Boiler Feed Water Lines
• Main Steam & Hot Reheat Lines
• Process Plants with High Temperature & Pressure Service
• Marine & Offshore Process Systems
Key Features
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Pressure Seal Bonnet Design
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Excellent Leak Tightness
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High Pressure & High Temperature Capability
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Rising Stem with Outside Screw & Yoke (OS&Y)
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Solid / Flexible Wedge Design
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Reduced Maintenance
Valve Details.
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Size Range 2 Inch to 36 Inch
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Pressure Class ASME Class #600 to #2500
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Body Material WCB / WC6 / WC9 / LCB / LCC / Stainless Steel
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Bonnet Material WCB / WC6 / WC9 / LCB / LCC / Stainless Steel
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Wedge Solid Wedge / Flexible Wedge
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Seat & Trim SS 304 / SS 316 / Hardfaced (Optional)
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Seal Material Graphite
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End Connection Butt Weld / Flanged (RF / RTJ)
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Operation Handwheel / Gear / Electric Actuator
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Testing Standard API 598
