Specialized in Trunnion Ball valves

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J-VALVES Manufactures High Quality Trunnion Ball Valves

In the industrial sector, the performance of valves is pivotal for system stability. J-VALVES specializes in manufacturing trunnion ball valves, gaining a strong foothold with its top-tier products.Our API6D trunnion ball valves strictly comply with the API6D standard, ensuring high-end quality. Metal-sealed trunnion ball valves maintain excellent sealing under extreme conditions. The fully welded trunnion ball valves, with a one-piece welded structure, minimize leakage. DBB trunnion ball valves offer reliable media isolation.All these valves feature a unique trunnion structure, reducing friction and operating torque while enhancing durability. They are highly corrosion-resistant, suitable for oil, gas, chemical, and power industries.

Quality Industrial Valve Product Made in China J-Valves Factory Direct High-Pressure Stainless Steel Flanged Jacketed Insulated Ball Valve

The Factory Direct High-Pressure Stainless Steel Flanged Jacketed Insulated Ball Valve is engineered for precise temperature-controlled flow in high-pressure industrial processes. Constructed from 316 stainless steel, it resists corrosion in aggressive media while the integral jacket allows steam/hot oil tracing or cold fluid cooling, maintaining process temperatures within ±2°C. Rated for 2500LB and temperatures from -50°C to 450°C, its double-seal design ensures bubble-tight shutoff (ISO 5208 Class A) even under thermal cycling. Factory-direct pricing eliminates intermediary costs, while customizable jacket configurations (single/double jacket, insulation thickness) meet unique process requirements. Ideal for chemical reactors, polymer manufacturing, and food processing, it complies with API 6D and ASME B16.5, delivering reliability and cost-efficiency in temperature-sensitive applications.

High-performance Industrial Valves J-Valves High Pressure Forged Steel Worm Gear Operated Trunnion Flange Ball Valves

Designed for high-intensity industrial applications, our High Pressure Forged Steel Worm Gear Operated Trunnion Flange Ball Valves offer superior reliability and performance. Crafted from premium forged steel, these valves withstand extreme pressure conditions (up to Class 2500) while ensuring tight shut-off and minimal leakage.

The trunnion-mounted ball design reduces stem load and friction, enhancing operational efficiency and longevity. Equipped with a precision-engineered worm gear operator, they enable smooth, low-torque actuation for both manual and automated systems. Featuring dual soft and metal-to-metal sealing, these valves meet API 6D and ASME B16.34 standards, making them ideal for oil & gas, chemical, and power industries where safety and durability are critical.

High-performance Industrial Valves J-Valves Forged/Stainless Steel Worm Gear/Pneumatic Actuator/Electric Actuator Fire Safe 3PC Flange Trunnion Mounted Ball Valves

Introducing our J-Valves 3PC Flange Trunnion Mounted Ball Valves. These valves are crafted from either forged material or stainless steel, ensuring high strength and excellent corrosion - resistance.
We offer multiple actuator options, including worm gear, pneumatic, and electric actuators. This allows users to choose the most suitable control method according to their specific needs.
The fire - safe design is a key feature, providing reliable performance in high - risk environments. With a 3 - piece flange structure, installation, maintenance, and repair are made easy. These valves are perfect for industries such as oil, gas, and chemical, providing precise fluid control and long - lasting service.

Quality Industrial Valve Product Made in China J-Valves Two Piece Flanged Forged Stainless Steel Reduce Bore 600LB F316/F304 Trunnion Mounted Ball Valve

The Two Piece Flanged Forged Stainless Steel Reduce Bore 600LB F316/F304 Trunnion Mounted Ball Valve is engineered for high-pressure, corrosive industrial applications, combining forged stainless steel strength with trunnion-mounted design efficiency. Its reduce bore optimizes material usage and cost without compromising sealing performance, while F316/F304 alloys resist pitting in chloride-rich environments like seawater and chemical processing. The trunnion-mounted ball design minimizes stem load, enabling low-torque operation in 600LB systems, critical for offshore platforms and refineries. A two-piece forged body reduces leak paths, supported by fire-safe construction (API 607) and anti-static features for flammable media. Certified to API 6D and ASME B16.34, it delivers bidirectional bubble-tight sealing (ISO 5208 Class A) in high-flow pipelines, ideal for hydrocarbon processing, chemical plants, and marine installations.

China-Made J-Valves 6*4 inch ANSI Class 300 Carbon Steel WCB Bolted Bonnet With Top Flange Short Stem Flange End Gear/Electric/Pneumatic Operation 2PC Reduce Bore Trunnion Mounted Ball Valve

This 6*4 inch ANSI Class 300 ball valve, crafted from carbon steel WCB, is a reliable choice for industrial applications. The bolted bonnet design allows for easy access to internal components, simplifying maintenance. The top flange and short stem enhance installation convenience and operational efficiency. Its 2 - piece reduce bore trunnion - mounted structure offers stable performance under high pressure. The reduced bore design is ideal for applications where flow rate needs adjustment while maintaining pressure control. It can be operated via gear for manual precision, electric for remote control in automated systems, or pneumatic for rapid response in emergency situations. This valve is suitable for a wide range of industries, ensuring efficient and safe fluid control.

China-Made J-Valves 12 inch ANSI Class 300 Stainless Steel CF8/CF8M Bolted Bonnet With Top Flange Short Stem Flange End Gear/Electric/Pneumatic Operation 2PC Trunnion Mounted Ball Valve

This 12 - inch ANSI Class 300 ball valve is a top - tier industrial solution. Constructed from high - quality stainless steel CF8/CF8M, it offers excellent corrosion resistance, suitable for various harsh media. The bolted bonnet design ensures easy maintenance and a secure seal. With a top flange and short stem, it allows for efficient installation and operation. It comes in a 2 - piece trunnion - mounted structure, enhancing stability during high - pressure applications. The valve can be operated by gear, electric, or pneumatic means, providing flexibility to meet different system requirements, making it an ideal choice for a wide range of industrial pipelines.

China-Made J-Valves 16inch Class 300 Carbon Steel WCB With Top Flange Short Stem Gearbox Operation Bolt Bonnect 2PC Trunnion Mounted Flanged End Ball Valve

Discover the precision-engineered 16" 300LB WCB Turbine-Operated 2PC Fixed Ball Valve. The WCB casting undergoes strict quality checks for flawless integrity. Its 16" dimension is calibrated for maximum flow with minimal pressure loss. The 300LB rating adheres to international standards, ensuring safety under extreme conditions. The turbine drive features advanced gearing for smooth rotation and accurate positioning. The 2PC fixed ball design reduces internal friction and wear. With enhanced sealing technology, it blocks leaks even at high pressures. Engineers rely on this valve for its technical superiority, enabling seamless fluid management in industrial pipelines.

J-Valves China API6d 6‘ ’ 2PC Carbon/Cast/Stainless Steel Flange End Class Industrial Ball Valve

The J-Valves China API6D 6’’ 2PC ball valve is a top - tier industrial product. Available in carbon, cast, or stainless steel with flange ends, it adheres to Class standards. Ideal for various industrial applications, it ensures reliable performance, excellent sealing, and long - term durability, meeting high - end engineering requirements.

J-Valves Made in China ANSI Class 8′′ 2500lb Stainless Steel F316/F304 Trunnion Mounted 3PC Flange Ball Valve

This ANSI Class 8′′ 2500lb ball valve is a high - performance choice. Made of stainless steel (F316/F304), it offers excellent corrosion resistance. The trunnion - mounted design reduces stem load, ensuring smooth operation and high durability. With a 3 - piece flange construction, installation and maintenance are convenient, making it ideal for various industrial applications.

J-Valves Made in China 600lb Stainless Steel F316/F304 Trunnion Mounted 3PC Flange End Ball Valve

J-Valves, proudly Made in China, are high - quality ball valves. Rated at 600lb, they are crafted from stainless steel F316/F304. The trunnion - mounted design ensures stable operation and low torque requirements. With a 3 - piece flange end structure, installation and maintenance are a breeze. Ideal for various industrial applications.

J-Valves Made in China 6× 4′′ 2500lb F316/F304/Lf2 Rb Trunnion Mounted Flanged -Rtj Ball Valve

The J-Valves Made in China are top - quality ball valves. Measuring 6× 4′′ with a 2500lb pressure rating, they feature F316/F304/Lf2 materials. The trunnion - mounted, flanged - RTJ design ensures reliable performance. Ideal for high - pressure industrial applications, these valves offer durability and precise flow control.

J-Valves China 600lb 12′′ Stainless Steel F316/F304 Trunnion Mounted 3PC Flange Ball Valve

The J-Valves China 600lb 12′′ Stainless Steel F316/F304 Trunnion Mounted 3PC Flange Ball Valve is a top-notch industrial valve. Made of high-quality F316/F304 stainless steel, it offers excellent corrosion resistance. With a 600lb rating and 12-inch size, it's suitable for high-pressure applications. Its trunnion-mounted design ensures smooth operation and long lifespan.

J-Valves China 600lb 16*14‘ ’ Stainless Steel F316/F304 Trunnion Mounted 3PC Flange Ball Valve

The J-Valves China 600lb 16*14’’ Stainless Steel F316/F304 Trunnion Mounted 3PC Flange Ball Valve is a top - tier industrial valve. Made of high - quality F316/F304 stainless steel, it offers excellent corrosion resistance. The trunnion - mounted design reduces torque, while the 3 - piece flange construction ensures easy maintenance. Ideal for high - pressure applications.

J-Valves China1500lb 2inch Forged Carbon Steel A105n Trunnion Mounted 3PC Flange End Ball Valve with Long Stem

The J-Valves China 1500lb 2-inch forged carbon steel A105N trunnion-mounted 3PC flange end ball valve with a long stem is a top-notch industrial valve. Made from high-quality A105N forged carbon steel, it ensures durability and resistance to corrosion. The trunnion-mounted design reduces operating torque and offers reliable sealing. Its 3-piece construction allows for easy maintenance. The long stem provides better access and control in various applications, making it suitable for high-pressure pipelines in the oil, gas, and chemical industries.

J-Valves CHINA API6d 2PC 6'' 300lb Carbon/Cast/Stainless Steel Flange End Industrial Ball Valve

The J-Valves CHINA API6d 2PC 6'' 300lb Industrial Ball Valve is a top - tier product designed for industrial applications. Available in carbon, cast, and stainless - steel materials, it features flange ends for easy installation and connection. Meeting API6d standards, it ensures reliable performance under high - pressure conditions. The 2 - piece construction allows for convenient maintenance. With a 6 - inch size and 300 - pound pressure rating, it can handle a wide range of fluids, making it an ideal choice for various industrial pipelines.

J-Valves Made in China ANSI Class 2500lb 8‘ ’ Stainless Steel F316/F304 Trunnion Mounted 3PC Flanged Ball Valve

Introducing our high - performance ball valve, a product of outstanding quality. This is a Made in China 8 - inch Stainless Steel F316/F304 Trunnion Mounted 3PC Flanged Ball Valve with an ANSI Class 2500lb rating.

Crafted from premium F316/F304 stainless steel, it offers excellent corrosion resistance, making it suitable for various harsh industrial environments. The trunnion - mounted design ensures stable operation and low torque requirements. The 3 - piece flanged structure simplifies installation, maintenance, and repair. With an ANSI Class 2500lb rating, it can handle high - pressure applications reliably. Ideal for the oil, gas, and chemical industries, this ball valve is your trusted choice for precise flow control.

J-Valves Made in China 3inch 2PC ANSI Class 900lb Stainless Steel Trunnion Mounted Flange Ball Valve

Introducing the J-Valves Made in China. This 3 - inch 2PC ANSI Class 900lb Stainless Steel Trunnion Mounted Flange Ball Valve is a top - tier industrial solution. Crafted from premium stainless steel, it offers excellent corrosion resistance. The trunnion - mounted design ensures stable operation and low torque requirements. With ANSI Class 900lb rating, it can handle high - pressure applications effectively. Ideal for various industries like oil, gas, and chemical, this valve guarantees reliability and long - lasting performance.

Quality Industrial Valve Product Made in China J-Valves Forged Carbon Steel A105 3PC Flange Trunnion Mounted Ball Valve

The Forged Carbon Steel A105 3PC Flange Trunnion Mounted Ball Valve stands as a high - performance solution for industrial fluid control needs. Constructed from A105 forged carbon steel, it offers exceptional strength and durability, capable of withstanding harsh operational conditions. Its three - piece flange design enables straightforward installation and maintenance, as components can be easily disassembled for servicing. The trunnion - mounted structure provides stable support, ensuring seamless operation even under challenging circumstances. This valve finds wide application across diverse industries, serving as a reliable choice for efficient and secure pipeline management.

J-Valves Made in China Carbon Trunnion Mounted 3PC Toggle Double Flange Ball Valve

J-Valves presents its remarkable Carbon Trunnion Mounted 3PC Toggle Double Flange Ball Valve, proudly made in China. This valve combines advanced engineering and high-quality materials. The carbon construction ensures durability and resistance to harsh operating conditions, while the trunnion-mounted design provides enhanced stability and control. Its 3PC (three-piece) structure allows for easy maintenance and repair. The toggle mechanism enables quick and reliable operation, facilitating efficient flow control. With double flange connections, it offers a secure and leak-free installation, making it an ideal choice for a wide range of industrial applications where precision and reliability are crucial.

J-Valves China 4x3' 1500lb Forged Carbon Steel 3-Piece Flanged Short Stem Trunnion Ball Valve

J-Valves 4X3′ ′ 1500lb Forged Carbon Steel 3PC Flanged Trunnion Mounted Ball Valve with Short Stem: Premier Industrial Valve

The J-Valves 4X3′ ′ 1500lb Forged Carbon Steel 3PC Flanged Trunnion Mounted Ball Valve with Short Stem is a leader.
Made of forged carbon steel, it resists high pressure and corrosion, ideal for various fluids. The 3PC flanged design simplifies install and maintenance. Trunnion mount and short stem enhance operation and sealing. Sized 4X3′ ′ with 1500lb rating, it suits many pipes.
It performs well. Good flow capacity and excellent sealing prevent leaks. Low torque for easy use.
Used widely in oil and gas, chemical, power, and water treatment. It controls different fluid flows.
In short, this J-Valves ball valve has great design, reliable performance, and wide use. It's a top choice for fluid control, ensuring efficient and safe operation with quality assurance.

TRUNNION BALL VALVES

J-VALVES trunnion ball valves apply cutting-edge design concepts, combined with exquisi--te manufacturing technology, to achieve excellent sealing performance and stable operating performance.

Main Structural Components

Valve Body: The outer shell, usually made of stainless steel, supports internal components and protects against external influences, ensuring stable operation in various conditions.
Ball: The core with a through - hole, made of metal and precisely processed. Its quality impacts sealing and fluid control.
Seat Ring: On both sides of the ball, made of elastic materials like PTFE. It seals with the ball during rotation to prevent leakage.
Stem: Connects the ball to the drive device (handwheel, electric or pneumatic actuator). Rotating the stem drives the ball to open and close the valve.
Trunnion: Distinguishes trunnion ball valves. Fixed at the ball's ends, it allows the ball to rotate around it, providing support and bearing the ball's weight and fluid pressure.
Drive Device: Manually, pneumatically or electrically drives stem rotation. Manual uses a handwheel, pneumatic uses compressed air for fast response, and electric uses a motor for remote and automated operation.

Working Principle

The working principle of the trunnion ball valve is based on the rotational movement of the ball. When the valve needs to be opened, the drive device (such as manually turning the handwheel, or the action of a pneumatic or electric actuator) drives the stem to rotate, and the stem then drives the ball to rotate around the trunnion. During the rotation process, the through-hole of the ball gradually aligns with the pipeline axis. When it is completely aligned, the fluid can pass through the valve unobstructed, and the valve is in the fully open state.
When the valve needs to be closed, the drive device acts in the opposite direction, making the stem drive the ball to continue rotating 90 degrees. As the ball rotates, its through-hole gradually becomes perpendicular to the pipeline direction until it is completely perpendicular. At this time, the fluid is blocked by the ball and cannot pass through the valve, and the valve is in the fully closed state. During the entire working process, the trunnion provides stable support for the rotation of the ball, ensuring that the ball can rotate precisely and smoothly, and achieving effective control of the fluid.

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Innovative Design and Advanced Craftsmanship

J-VALVES trunnion ball valves are crafted with a combination of cutting-edge design concepts and state-of-the-art manufacturing techniques. The distinctive trunnion structure is a masterpiece of engineering. By reducing the friction between the ball and the seat, it not only minimizes the operating torque, making the valve operation smoother and more effortless but also significantly extends the service life of the product. This innovative design ensures long-term reliability and

cost-effectiveness for industrial users.

Superior Performance Attributes

These valves exhibit outstanding corrosion resistance, enabling them to withstand the harshest corrosive media without compromising their functionality. The

high-precision manufacturing process guarantees excellent tightness, effectively preventing any leakage. This not only enhances the safety of industrial operations but also contributes to the overall efficiency of the system. Whether it's

high-pressure, high-temperature, or chemically aggressive environments, J-VALVES trunnion ball valves maintain their performance integrity.

Versatile Application Scenarios

J-VALVES trunnion ball valves are highly adaptable and find extensive applications across a wide range of industries. From the oil and gas sector, where the transportation of valuable resources requires reliable and durable valves, to the chemical and power industries, which often deal with complex and demanding operating conditions, these valves prove to be the ideal choice. Their ability to function optimally in diverse industrial settings makes them a go-to solution for various industrial projects.

Explosion diagram of ear shaft ball valve

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Professional Technical Features of J-VALVES Trunnion Ball Valves

J-VALVES trunnion ball valves adopt an advanced metal hard-sealing structure. The valve seats and spheres are precisely ground, resulting in an extremely low surface roughness, enabling zero-leakage sealing. This sealing method is not only suitable for conventional media but also maintains stable and reliable sealing performance under

high-temperature, high-pressure, and highly corrosive media conditions. It greatly expands the application scope and service life of the valves.
Based on the metal hard-sealing, an auxiliary elastic-sealing structure is also equipped. When the valve is in a micro-leakage state, the

elastic-sealing elements will automatically compensate to ensure the integrity of the seal. This dual-sealing design further enhances the sealing reliability of the valve, effectively preventing medium leakage and ensuring the safety and stability of industrial production.

High-performance Valve Body Materials

The valve body is made of

high-quality alloy or stainless steel, which can withstand harsh conditions, ensuring reliable operation and durability.

Special Sealing Materials

Special-formula engineering plastics or metal composites are used for sealing. They have good wear and corrosion resistance, maintaining stable sealing performance and reducing maintenance costs.

Precision Machining

Advanced CNC equipment and precision processes ensure the dimensional accuracy and surface quality of valve components, improving the sealing and operating performance.

Strict Quality Inspection

Each valve undergoes strict tests, like pressure, sealing, and

non-destructive tests, to meet

high-quality standards and provide reliable products.

API6D trunnion ball valve

J-VALES API6D trunnion ball valves introduce a revolutionary metal sealing mechanism. The valve seats and spheres are precision-ground to a molecular-level smoothness, forming a seal so tight that it defies even the most challenging industrial media. Whether it's the high-pressure gush of oil and gas pipelines or the corrosive onslaught of chemical processing plants, this metal seal ensures zero-leakage performance.

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Professional quality

DBB trunnion ball valves

The core advantage of the DBB trunnion ball valve is its unique double blocking and discharge function. This design can not only achieve reliable blocking of the upstream and downstream of the pipeline, but also ensure the complete release of the internal medium of the valve through the discharge function, so as to effectively reduce the system pressure and avoid potential safety hazards.

fully welded trunnion

ball valves

The fully welded trunnion ball valves is crucial in fields like oil, chemical processing, and power energy due to its excellent performance. It operates stably under high pressure and high temperature, ensuring safe and efficient medium transmission.

Three way trunnion ball valve

The three way trunnion ball valve supports a variety of flow direction switching modes (such as L-shunt and T-confluence), enabling precise fluid distribution or combination with simple operation. Whether it is material diversion in chemical production, or the hot and cold switching of HVAC system, it can be easily dealt with and greatly improve the efficiency of system operation.

Metal sealed trunnion type

ball valve

Our metal sealed trunnion ball valves stand out with cutting-edge technology and exquisite craftsmanship. Its metal seal design can achieve tight and durable sealing under extreme conditions such as high temperature, high pressure and strong corrosion, eliminate potential media leaks, and strictly guard the production safety line for you.

J-VALVES TRUNNION BALL VALVESE

TRUNNION BALL VALVESE FFICIENCY AND SAFETY

J-VALVES Trunnion-Mounted Ball Valves are engineered for low operating torque, ensuring smooth and efficient operation whether manually or automatically controlled. This design not only enhances user experience but also reduces maintenance costs over time. Additionally, our valves are equipped with

fire-safe and anti-static features, ensuring they can operate safely in hazardous environments, making them a trusted choice for industries such as oil and gas, chemical processing, and power generation.

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We promise that all inquiries will be replied to within 48 hours.

Equipped with 3D and 2D design capabilities, there are 8 technical engineers on our team.

All products undergo 100% factory testing and are 100% qualified in quality.

Advantages of Trunnion Ball Valves

I. High-Pressure Capability:The trunnion design allows the valve to handle extremely high pressures, making it suitable for demanding applications in oil and gas, chemical processing, and power generation.
II. Low Operating Torque: The fixed ball and trunnion support reduce the torque required to operate the valve, leading to lower maintenance costs and easier integration with automated systems.

III. Bidirectional Sealing: The valve provides reliable sealing in both directions, ensuring consistent performance regardless of the flow direction.

VI. Durability and Longevity: The robust construction and reduced wear on critical components extend the valve’s service life, minimizing downtime and maintenance requirements.

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API6D Trunnion Ball Valve

The API6D trunnion ball valve has remarkable advantages in industrial pipeline systems. With its trunnion structure, it features small operating torque, allowing for easy opening and closing. This not only facilitates automation but also cuts down the cost of actuators. Its sealing performance is excellent. Whether it's a metal or soft seal, it can effectively prevent leakage under various working conditions, ensuring system safety. The trunnion makes the ball evenly stressed. Coupled with high-quality materials and advanced processes, the valve is highly

wear-and corrosion-resistant, resulting in a long service life and fewer maintenance and replacements. In terms of flow capacity, when fully open, the passage is unobstructed with low flow resistance, performing outstandingly in large - flow transportation. It has two-way sealing, so the installation is not restricted by the medium flow direction. Designed according to the API 6D standard, it has good fire-proof performance. It shows strong anti-scouring ability when dealing with media containing impurities. Moreover, its simple structure makes maintenance and overhaul convenient. It can be repaired online, saving time and cost, making it a reliable choice for industrial pipelines.

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Metal Sealed Trunnion

Ball V alve

Metal sealed trunnion ball valves have remarkable advantages. Their metal seals can withstand high temperatures and pressures. Compared with soft seals, they won't deform due to thermal expansion, contraction or pressure shock under extreme conditions, effectively preventing leakage and being suitable for industries like oil and chemical. The trunnion structure makes the ball evenly stressed. With the wear-resistant and

corrosion-resistant metal seals, it greatly extends the service life and reduces maintenance costs. During operation, using the trunnion as a fulcrum results in a small torque and smooth movement. It can operate stably even with frequent on-off operations, providing reliable support for automated control. It has a simple structure with a light-weight ball, responding quickly to cut off or conduct the medium, meeting the needs of scenarios like emergency

shut-off. Besides, the non-combustible metal seal offers good fire-proof performance, ensuring pipeline safety during a fire. Moreover, it can adapt to complex media with solid particles, etc., being widely used in mining, metallurgy and other industries.

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All Welded Trunnion Type

Ball Valve

All welded trunnion ball valves perform remarkably in industrial pipeline fields. The all-welded body eliminates leakage risks from traditional flange connections. With metal seals, it maintains excellent sealing under harsh conditions like high temperature and pressure, meeting the strict demands of industries such as oil and gas. Welding strengthens the valve body, reducing component loosening. The trunnion structure makes the ball evenly stressed, cutting wear, extending service life and reducing operational costs.
In terms of special advantages, the allwelded design avoids leakage caused by corrosion and loosening at bolted parts, significantly enhancing safety. During a fire, it can effectively prevent medium leakage and fire spread. In buried pipelines, its all-welded structure better resists stress from soil settlement and geological displacement, ensuring long-term pipeline stability.

The core is the combination of all-welded technology and the trunnion structure. The former endows the valve with good sealing, high strength and anti-environmental interference capabilities, while the latter ensures stable and smooth operation

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DBB Trunnion Ball Valve

DBB trunnion ball valves draw much attention due to their unique design and excellent performance. Their sealing performance is outstanding. The DBB (Double Block and Bleed) function enables the upstream and downstream sealing surfaces to fit tightly when the valve is closed, blocking the two-way flow of the medium. Paired with high-quality sealing materials, it can maintain stable sealing in high-temperature, high-pressure and corrosive medium environments, meeting the strict requirements of industries such as oil and chemical. The trunnion structure makes the ball evenly stressed, reducing wear, and the sturdy valve body material extends the service life of the ball valve, cutting maintenance and replacement costs.
In terms of special advantages, the DBB function is crucial in emergencies and pipeline maintenance. Residual media in the valve cavity can be safely released through the bleed port, avoiding pressure build-up and leakage. In fields with high requirements for medium isolation, such as fine chemical industry, it can prevent cross-contamination of media

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J-VALVES is a Professional Group Manufacturer of Trunnion Ball Valves

The J-VALVES team understands the diverse needs of customers and can customize product designs and solutions according to specific working conditions and special requirements. Whether it is a special caliber, pressure level, or a unique connection, we can create a suitable trunnion ball valve for users.

Exquisite manufacturing technology

The production team of J-VALVES is experienced, and every process of producing trunnion ball valves is strictly in accordance with the top international standards.
Cutting-edge technology
research and development

The company attaches importance to technological innovation and has set up a professional R & D team to study trunnion ball valve technology. Members keep up wi
the international forefront, after analyzing the needs of different industries, develop special coated trunnons and spheres, enhance the wear resistance and corrosion resistance of ball valves in harsh environments, and provide reliable solutions for special working conditions.
Strict quality control

J-VALVES has established a perfect and strict quality control system, from raw material procurement to finished products, each link is strictly inspected. The quality inspection team uses advanced equipment to comprehensively test the ball valve to ensure excellent product quality, leading the pass rate in the industry, and ensuring product quality.

High-pressure and high-temperature ball valve

Trunnion Ball Valve Process Structure

Trunnion ball valve by a number of key parts constitute a unique process structure. Valve body commonly used carbon steel, stainless steel and other high-quality metal, casting or forging molding. Casting is suitable for complex shapes to meet a variety of connections and working conditions; Forging gives the valve body high strength to cope with harsh environments. After forming, it is processed by turning, etc., to ensure accurate dimensions and close coordination with other components.The ball is the core component, the whole forging, and the material is adapted to the valve body to ensure the strength and corrosion resistance. The trunnion is a unique design, made of high strength alloy steel, with a precise fit on both sides of the valve body bearing seat, one end of the ball. The valve seat can be made of metal or PTFE according to the working condition

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Structure of Trunnion Ball Valves

The trunnion ball valve is a sophisticated assembly of several critical components, each contributing to its robust performance

01

Ball and Trunnion Support

The core of the valve is a spherical ball that controls the flow of media. Unlike floating ball valves, the ball in a trunnion-mounted valve is fixed in place by a trunnion a shaft that provides additional support at the bottom. This dual-support system

(stem at the top and trunnion at the bottom) ensures the ball remains stable, reducing operational torque and wear.
02

Valve Body and Housing

The valve body is typically constructed from durable materials such as stainless steel, carbon steel, or specialized alloys, depending on the application. It houses the ball and provides the structural framework for the valve. The body can be designed in various configurations, including side-entry or top-entry, to facilitate maintenance and installation.
03

Seats and Sealing Mechanism

The valve features spring-loaded or resilient seats that create a tight seal around the ball. These seats are designed to provide reliable sealing in both low and high-pressure conditions. The trunnion design allows for bidirectional sealing, ensuring that the valve can effectively block flow from either side.

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J-VALVES Excels in Making

High-quality Trunnion Ball Valves

Our valves are precisely engineered and durable. The trunnion design supports the ball at both ends, cutting operation torque. This makes actuation smoother and more efficient, while also extending the valve's lifespan. With less wear on internal parts, they can handle tough industrial settings, like high-pressure oil and gas pipelines or corrosive chemical plants.
Our trunnion ball valves also have excellent sealing. Advanced tech ensures a tight

shut-off, reducing leakage risk. This is vital for safety-and environment-conscious industries.

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Unique Advantages of J-VALVE Trunnion Ball Valve

J-VALVE understands that each customer's needs are different, relying on a professional technical team and rich experience, to provide customers with highly customized trunnion ball valves. Whether it is a special caliber, pressure level, or a unique connection method, special working conditions, J-VALVE can meet the personalized needs of customers from design, material selection to manufacturing, and provide customers with the most suitable valve solutions.

Efficient Operation Performance

The trunnion structure reduces operating torque. J-VALVE further improves the transmission system. Manual valves are easy to operate, allowing for quick actions in emergencies. Automated valves, equipped with advanced actuators, respond fast and accurately to control signals, fitting industrial automation needs.
Precise Flow Control

J-VALVES R & D team optimizes the internal structure. The ball's opening matches pipeline flow needs, whether in large-diameter
high-flow or small-diameter fine-flow scenarios. In industrial reactors, these valves precisely regulate material inflow, ensuring production stability and product quality.
Versatility in Applications

Suitable for a wide range of industries, including oil and gas, chemical processing, power generation, and water treatment. These valves can handle various media, including corrosive fluids, steam, and cryogenic liquids.

Trunnion Ball Valves

Advantages of Each Product

API6D trunnio n ball valve strictly comply with API6D standard, universal and interchangeability, suitable for a variety of working conditions, after rigorous testing, high reliability. Metal sealed trunnion ball valve is resistant to high temperature and pressure, wear resistance, metal seal to achieve bidirectional sealing, suitable for extreme environment and high sealing requirements. All welded trunnion ball valve adopts integrated welding structure, excellent strength, sealing and corrosion resistance, no connection leak point, higher reliability. DBB trunnion ball valves have a bi-directional sealing function for safety and easy maintenance. Three-way trunnion ball valve set shunt, confluence, commutation function in one, smooth flow channel, easy operation and automation, is the best choice for complex pipeline system. Three way trunnion ball valves have their own advantages to ensure efficient and safe operation of pipeline systems in various industries.