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Product Details
Expansion Valve
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Expansion Valve
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Technical Features
● Double-gate design automatically compensates sealing clearance under medium pressure for reliable sealing performance.
● Both gate plates and valve seats are treated with QPQ or tungsten carbide spray coating to extend service life.
Technical Specifications
● Design & Manufacturing Standards: API Spec 6A, NACE MR0175
● Rated Working Pressure: 2000 PSI ~ 5000 PSI
● Nominal Size: 2-1/16", 3-1/8", 4-1/16", 5-1/8", 7-1/16"
● Operation: Manual
● Material Grades: AA, BB, CC, DD, EE, FF
● Performance Levels: PU, LU, X, Y
● Temperature Rating: PR1-PR2
● Product Specification Level: PSL1PSL3 / PSL3G
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Related Product
Weatherock Energy provides a comprehensive range of API 6A wellhead and frac valve solutions, including Plug Valves, Gate Valves, Check Valves, Expanding Gate Valves, and other pressure-control equipment for demanding oilfield applications.
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Global Presence. Local Delivery
Served over 5,000 + customers from 60 countries
Weatherock Energy operates offices in China, Hong Kong, and Houston, with manufacturing facilities based in China and overseas. We are committed to delivering professional, reliable products and services to clients around the world.
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Annual production capacity 15 million Tons
Annual sales of $10 million








