Pressure Seal Swing Check Valves are heavy-duty non-return valves specifically designed for high-pressure and high-temperature applications. The valve features a pressure seal bonnet that uses system pressure to achieve a self-energizing, leak-tight seal, making it far more reliable than conventional bolted bonnet designs in severe service conditions.
Applications
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Thermal & Nuclear Power Plants
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Main Steam & Hot Reheat Lines
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Boiler Feed Water Systems
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Oil & Gas Industry
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Refineries
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Petrochemical & Chemical Plants
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High-Pressure Hydrocarbon Service
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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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Swing Disc Design
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High Pressure & Temperature Capability
Rugged & Durable Construction -
Low Flow Resistance
Valve Details
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Valve Type Pressure Seal Swing Check Valve
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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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Disc Material SS 304 / SS 316 / Hardfaced (Optional)
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Seat Type Metal Seat
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End Connection Butt Weld / Flanged (RF / RTJ)
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Design Standard ASME B16.34
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Testing Standard API 598