Ball Valve
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Built for demanding pipeline and process applications, the Side Entry Trunnion Mounted Ball Valve is designed to provide reliable isolation, tight shut-off, and long-term operating performance under high-pressure and severe service conditions. Its trunnion-mounted ball design securely supports the ball at both the upper and lower ends, reducing operating torque and ensuring stable valve performance even in large-diameter and high-pressure applications.
The Side Entry Trunnion Mounted Ball Valve is widely suited for oil & gas, natural gas transmission, petrochemical, chemical processing, power generation, and other critical industrial applications where dependable flow isolation is essential. The side-entry construction allows convenient access to internal components for inspection and maintenance, while advanced sealing and robust construction provide reliable performance throughout extended operating cycles.
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Product description: |
Side entry trunnion mounted ball valve |
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Model: |
Q341F trunnion mounted ball valve |
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Nominal diameter: |
NPS 1/2”～10” |
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Operating temperature: |
-46℃～121℃ |
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Operating pressure: |
CLASS 150～CLASS 2500 |
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Material: |
WCB、A105、LCB、LF2、CF8、F304、CF8M、F316, etc. |
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Design standard: |
API 608、ISO 17292、BS 5351 |
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Structural length: |
ASME B16.10 |
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Connecting end: |
ASME B16.5、ASME B16.25 |
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Test standard: |
API 598 |
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Operation method: |
Handle, worm, motor-drive unit, pneumatic drive unit |
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Application fields: |
Water, petroleum and natural gas |
High-performance quarter-turn valve delivering bubble-tight shutoff for demanding process industries.
Trunnion Mounted Ball Design
The ball is securely supported by upper and lower trunnions, reducing operating torque and providing stable performance under high-pressure conditions.
Reliable Tight Shut-Off
Advanced seat and sealing design provides dependable isolation and minimizes the risk of internal and external leakage.
Low Operating Torque
The fixed-ball design significantly reduces the load on the valve seats and actuator, allowing efficient operation of large and high-pressure valves.
High Pressure Capability
Robust construction and optimized pressure-bearing components make the valve suitable for high-pressure pipeline and process applications.
Side Entry Construction
The bolted side-entry design provides convenient access to internal components, simplifying inspection, maintenance, and repair.
Double Block & Bleed
Suitable configurations can provide reliable isolation and allow pressure to be safely relieved from the valve cavity during maintenance and operation.
Fire Safe Design
Fire-safe sealing arrangements help maintain valve integrity and minimize leakage under emergency fire conditions when designed and tested to applicable standards.
Emergency Sealing Capability
Optional sealant injection points allow emergency sealing of seats or stem seals, helping to maintain valve performance in demanding operating conditions.
Long Service Life
Robust materials, precision-machined components, and wear-resistant sealing surfaces provide reliable performance over extended operating cycles.
Wide Range of Applications
Suitable for oil & gas pipelines, natural gas transmission, petrochemical plants, refineries, chemical processing, and other critical isolation services.
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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