Ball Valve
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Built for severe service applications where high strength, reliable isolation, and exceptional wear resistance are essential, the Three-piece Forged Steel Metal-Seated Trunnion Ball Valve is designed to provide dependable performance under high-pressure, high-temperature, and abrasive operating conditions. Its forged steel three-piece body provides excellent mechanical strength and pressure resistance, while the trunnion-mounted ball design reduces operating torque and ensures stable operation. The metal-seated construction offers superior resistance to abrasion, erosion, and high-temperature service.
The Three-piece Forged Steel Metal-Seated Trunnion Ball Valve is ideally suited for demanding applications in oil & gas, petrochemical, refinery, chemical processing, power generation, mining, and other severe service industries. It is particularly suitable for abrasive media, high-temperature fluids, coking services, and applications where conventional soft-seated valves may have limited service life.
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Product description: |
Three-piece Forged Steel metal-seated trunnion ball valve |
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Model: |
GQ537Y Orbit Ball valve |
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Nominal diameter: |
NPS 2"~24" |
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Operating temperature: |
-46℃～121℃ |
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Operating pressure: |
Class150Lb~1500Lb |
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Material: |
A216-WCB、A217-WC6、WC9、C5、C12、A351-CF8、CF8M、CF3、CF3M、CF8C、CN7M、A105、A182-F11、F22、F9、F5、F304、F316、F304L、F316L、F321、ALLOY-20 |
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Design standard: |
API 6D、ASME B16.34、API 608、MISS SP-72、BS5351 |
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Structural length: |
ASME B16.10、API 6D、EN558 |
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Connecting end: |
ASME B16.5 |
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Test standard: |
API 598、API6D |
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Operation method: |
Manual、Gear、Electric、Pneumatic、Hydraulic |
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Application fields: |
Water, petroleum and natural gas |
High-performance quarter-turn valve delivering bubble-tight shutoff for demanding process industries.
Three-piece Forged Steel Body
Forged construction provides high strength, excellent toughness, and superior resistance to pressure and thermal stresses.
Trunnion Mounted Ball Design
The ball is securely supported by upper and lower trunnions, reducing operating torque and ensuring stable performance under high-pressure conditions.
Metal-Seated Construction
Metal-to-metal sealing provides excellent resistance to high temperatures, abrasion, erosion, and aggressive operating conditions.
High Temperature Capability
Designed for demanding high-temperature applications where soft-seat materials may degrade or lose sealing performance.
Excellent Abrasion & Erosion Resistance
Robust metal sealing surfaces provide enhanced durability when handling abrasive or particle-containing media.
Reliable Tight Shut-Off
Precision-machined and hardened sealing surfaces provide dependable isolation and long-term sealing performance in severe services.
Low Operating Torque
The trunnion-mounted design reduces friction and seat loading, allowing smooth and efficient valve operation.
Suitable for Severe Service
Ideal for applications involving coking, abrasive media, high-temperature fluids, and other challenging process conditions.
Easy Maintenance
The three-piece construction provides convenient access to internal components, simplifying inspection, maintenance, and replacement.
Long Service Life
Forged components, durable metal seats, and wear-resistant sealing surfaces help extend service life and reduce maintenance requirements.
Wide Range of Applications
Suitable for oil & gas, refining, petrochemical, chemical processing, power generation, mining, coking, and other severe service applications.
Chemical Industry
Ball valves, butterfly valves, gate valves, globe valves, check valves, and control valves ensure safe fluid isolation, precise process control, and reliable operation in demanding chemical processing applications.
Oil Industry
Engineered for reliable isolation, flow regulation, and backflow prevention, our valve solutions support upstream, midstream, and downstream oil production and refining operations.
Natural Gas
Providing leak-tight sealing, dependable flow control, and safe pipeline operation for natural gas transmission, storage, LNG, and distribution systems.
Metallurgy
Built to withstand high temperatures, abrasive media, and harsh operating conditions in steelmaking, smelting, and metallurgical processing.
Power Generation
Ensuring reliable isolation, accurate flow control, and long-term performance in steam, boiler, turbine, and power plant systems.
Pharmaceutical
Delivering hygienic, precise, and contamination-free flow control for pharmaceutical manufacturing and clean process applications.
Steel Industry
Designed for high-temperature, high-pressure, and severe-service conditions in iron making, steelmaking, rolling mills, and auxiliary process systems.
New Energy
Supporting hydrogen, LNG, carbon capture, battery materials, and renewable energy projects with advanced valve solutions for safe and efficient process control.
-196°C Cryogenic Liquid Nitrogen Test System
Simulates ultra-low-temperature operating conditions to verify valve sealing performance and reliability for cryogenic applications.
Brinell, Rockwell & Vickers Hardness Tester
Ensures material hardness meets international standards for strength, durability, and long-term performance.
Large-Scale Coordinate Measuring Machine (CMM)
Provides high-precision dimensional inspection to ensure machining accuracy and product consistency.
Valve Life Cycle Testing System
Evaluates valve durability and operational reliability through repeated opening and closing cycle tests.
High & Low Temperature Test Chamber
Verifies valve performance and stability under extreme temperature conditions.
High Temperature Aging Test Chamber
Assesses long-term material stability and product reliability under continuous high-temperature exposure.
Desktop SPECTRO Optical Emission Spectrometer (Germany)
Performs rapid and accurate material composition analysis to ensure full material traceability and compliance.
Our engineering team evaluates these factors to ensure long-term reliability and regulatory compliance.
ISO9001:2015
ISO9001:2015
Environmental Management System Certification
Occupational Health & Safety Management System Certification
Certificate of Quality System Approval
ScheduleTo Certificate No HPiVS-iP1001-062-Q-10-00
CEPTUфNKAT COOTBETCTBNа
EAC
Certificate of Authority to use the Official APl Monogram
Certificate of Authority to use the Official APl Monogram
Certificate of Authority to use the Official APl Monogram
Certificate of Authority to use the Official APl Monogram
Certificate of Authority to use the Official APl Monogram
ISO 15848－1 QUALIFICATION CERTIFICATE
Test Report
A ball valve is designed for reliable on/off isolation by rotating a ball with a bore through 90 degrees. It is widely used in oil & gas, chemical processing, LNG, water treatment, and industrial pipeline systems requiring tight shutoff.
Choose a ball valve when you need bubble-tight sealing, low operating torque, quick quarter-turn operation, and long service life. It is ideal for frequent operation and automated process systems.
Floating ball valves are suitable for small and medium sizes, while trunnion-mounted ball valves provide lower operating torque and greater stability for high-pressure and large-diameter applications.
Q Can ball valves be used for throttling?
Ball valves are primarily designed for on/off service. Although partial opening is possible, continuous throttling is generally not recommended because it may damage the sealing surfaces.
Q What materials are available for ball valves?
Ball valves are available in carbon steel, stainless steel, duplex stainless steel, alloy steel, and special materials to suit corrosive, high-temperature, cryogenic, and severe-service applications.
Q Which industries commonly use ball valves?
Ball valves are widely used in oil & gas, petrochemical, LNG, chemical processing, power generation, mining, and general industrial applications.
Hangzhou Kaiwei Valve Group Co, Ltd, established in 2015, is a cutting-edgeindustrial enterprise that specializes in the R&D, design, casting, production,and sales of fluid control products and services
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