Top Entry Ball Valve
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Pressure:ASME Class 600, ASME Class 150 / 300 / 900 / 1500 / 2500
Size Range:2″–64″ (DN50–DN1600), larger sizes on request
Operating Temperature:-29℃ to 425℃
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Description
Key Advantages:
√ Dual-drive operation with electric actuator and worm gear for automation and emergency control;
√ Top entry design enables in-line inspection and maintenance without pipeline removal;
√ Forged trunnion-mounted ball with Double Block and Bleed (DBB) for secure isolation;
√ Metal seated sealing delivers excellent wear resistance and long service life;
√ Fire-safe construction with anti-static device and anti-blowout stem;
√ Bi-directional tight sealing with stable torque for high-pressure and large-size applications.
Technical Specifications:
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Valve Type
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Metal Seated Top Entry Trunnion Mounted Ball Valve
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Pressure Rating (Standard)
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ASME Class 600, ASME Class 150 / 300 / 900 / 1500 / 2500 (on request, subject to design confirmation)
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Size Range
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2″–64″ (DN50–DN1600), larger sizes on request
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Ball Design
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Trunnion Mounted
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Body Construction
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Forged body with bolted top cover (Top Entry)
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Sealing Design
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Double Block and Bleed (DBB)
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Seat Type
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Metal Seat (standard); Soft seat optional
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Seat Materials
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Metal Seat, PEEK, PCTFE (KEL-F), Devlon V
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Operating Temperature
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-29℃ to 425℃ (metal seated, depending on material selection)
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End Connection
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Flanged RF / RTJ
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Operation
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Worm Gear + Electric Actuator (dual-drive)
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Mounting Interface
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ISO 5211 direct mounting available
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Body Material
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ASTM A216 WCB, LCB, LCC, WC6, WC9, Stainless Steel, Duplex, Super Duplex, Nickel Alloys
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Sealing Direction
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Bi-directional sealing
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Design Standards
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Designed in accordance with API 6D, ASME B16.34, BS 5351
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Fire-Safe Design
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Designed in accordance with API 607 / API 6FA
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