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.

DN300 PN25 Forged Stainless Steel F316L 3PC Flange Trunnion Ball Valve

The CHINA J-VALVES DN300 PN25 Forged Stainless Steel F316L 3PC Flange Trunnion Ball Valve is a high-performance three-piece flanged trunnion ball valve designed for industrial applications requiring high reliability and corrosion resistance. Constructed from ASTM A182 F316L stainless steel, the valve offers excellent corrosion resistance and high strength, making it particularly suitable for high-pressure environments in industries such as petroleum, natural gas, and chemical engineering. Its flanged connection ensures reliable and tight installation, while it is equipped with a gear-operated mechanism for convenient on-site operation and maintenance.

600LB ASTM A105N Trunnion Mounted 3PC Flange End Ball Valve

J-Valves 600lb ASTM A105N Trunnion Mounted 3PC Flange End Ball Valve is a high-performance industrial valve elaborately manufactured in China. It is made of high-quality carbon steel ASTM A105N material, which has excellent strength and toughness and can withstand high-pressure conditions of 600 pounds, ensuring stable operation in harsh working environments. This valve adopts a three-piece (3PC) flange connection design, which is convenient and efficient for installation and maintenance. Its valve seat is loaded by a specially designed spring, which can closely adhere to the ball, providing the valve with excellent bidirectional sealing performance, preventing fluid leakage and maintaining system safety.

8′′ 2500LB Stainless Steel F316 3PC Flange Trunnion Ball Valve

The ANSI Class 8" 2500LB Stainless Steel F316 3PC Flange Trunnion Ball Valve is a high-performance three-piece flanged trunnion-mounted ball valve, which is specially designed for high-pressure and high-temperature industrial applications. This valve is made of stainless steel, possessing excellent corrosion resistance and high strength, and it can withstand pressures up to 2500LB. Its design complies with international standards such as API 6D and ASME B16.34, ensuring reliability and safety under harsh working conditions.

12" 600LB Stainless Steel F316/F304 3PC Flange Trunnion Mounted Ball Valve

The 12" 600LB Stainless Steel F316/F304 3PC Flange Trunnion Mounted Ball Valve is a high-performance three-piece flanged trunnion-mounted ball valve, which is specially designed for high-pressure and high-temperature industrial applications. This valve is made of stainless steel, possessing excellent corrosion resistance and high strength, and it can withstand pressures up to 600LB. Its design complies with international standards such as API 6D and ASME B16.34, ensuring reliability and safety under harsh working conditions.

6× 4" 2500LB F316/F304/Lf2 RB Flanged Trunnion Mounted Ball Valve

The 6×4" 2500LB F316/F304/LF2 RB Flanged Trunnion Mounted Ball Valve is a high-performance trunnion-mounted ball valve, which is specially designed for high-pressure and high-temperature industrial applications. This valve is made of stainless steel and low carbon steel, possessing excellent corrosion resistance and high strength, and it can withstand pressures up to 2500LB. Its design complies with international standards such as API 6D and ASME B16.34, ensuring reliability and safety under harsh working conditions.

1500LB 2inch Forged Carbon Steel A105n Trunnion 3PC Flange Ball Valve

The CHINA J-VALVES 1500LB 2 Inch Forged Carbon Steel A105N Trunnion 3PC Flange Ball Valve is a high-performance three-piece flanged ball valve designed for industrial applications requiring high reliability and corrosion resistance. Constructed from ASTM A105N carbon steel, the valve offers excellent strength and good corrosion resistance, making it particularly suitable for high-pressure environments in industries such as petroleum, natural gas, and chemical engineering. Its flanged connection ensures reliable and tight installation, while it is equipped with manual or gear-operated mechanisms for convenient on-site operation and maintenance.

2500LB 8" Stainless Steel F316 3PC Flanged Trunnion Ball Valve

The CHINA J-VALVES 2500LB 8" Stainless Steel F316 3PC Flanged Trunnion Ball Valve is a high-performance three-piece flanged ball valve designed for industrial applications requiring high reliability and corrosion resistance. Constructed from ASTM A182 F316 stainless steel, the valve offers excellent corrosion resistance and high strength, making it particularly suitable for high-pressure environments in industries such as petroleum, natural gas, and chemical engineering. Its flanged connection ensures reliable and tight installation, while it is equipped with manual or gear-operated mechanisms for convenient on-site operation and maintenance.

3inch 3PC 900LB Stainless Steel Trunnion Flange Ball Valve

The CHINA J-VALVES 3 Inch 3PC 900LB Stainless Steel Trunnion Flange Ball Valve is a high-performance three-piece flanged ball valve designed for industrial applications requiring high reliability and corrosion resistance. Constructed from stainless steel, the valve offers excellent corrosion resistance and high strength, making it particularly suitable for high-pressure environments in industries such as petroleum, natural gas, and chemical engineering. Its flanged connection ensures reliable and tight installation, while it is equipped with manual or gear-operated mechanisms for convenient on-site operation and maintenance.

High-Pressure Stainless Steel Flanged Jacketed Insulated Ball Valve

The CHINA J-VALVES High-Pressure Stainless Steel Flanged Jacketed Insulated Ball Valve is a high-performance insulated ball valve designed for industrial applications requiring high reliability and corrosion resistance. Constructed from stainless steel, the valve offers excellent corrosion resistance and high strength, making it particularly suitable for high-pressure environments in industries such as petroleum, natural gas, chemical engineering, and pharmaceuticals. Its flanged connection ensures reliable and tight installation, while the jacketed insulation design effectively maintains the temperature of the medium in the pipeline, preventing medium solidification or heat loss.

API6D 6'' 300LB 2PC Flanged Metal Seat Trunnion Ball Valve

The API 6D 6" 300LB 2PC Flanged Metal Seat Trunnion Ball Valve is a high-performance fixed ball valve, specially designed for high-pressure industrial applications in petroleum, natural gas and chemical industries. This valve adopts a two-piece flanged structure, and the valve body is made of ASTM A216 WCB carbon steel. The metal seat design enables it to maintain excellent sealing performance under high temperature and high pressure conditions. Its design complies with the API 6D standard, ensuring reliability and safety under harsh working conditions.

Forged Steel F316 High Pressure 2500LB 3PC Full Port Trunnion Ball Valve

The CHINA J-VALVES Forged Steel F316 High Pressure 2500LB 3PC Full Port Trunnion Ball Valve is a high-performance three-piece forged steel ball valve designed for industrial applications requiring high reliability and corrosion resistance. Constructed from ASTM A182 F316 stainless steel, the valve offers excellent corrosion resistance and high strength, making it particularly suitable for high-pressure environments in industries such as petroleum, natural gas, and chemical engineering. Its flanged connection ensures reliable and tight installation, while it is equipped with manual or gear-operated mechanisms for convenient on-site operation and maintenance.

4x3" 1500lb Forged Carbon Steel 3PC Flanged Short Stem Trunnion Ball Valve

The 4x3" 1500lb Forged Carbon Steel 3PC Flanged Short Stem Trunnion Ball Valve is a high-performance ball valve specially designed for high-pressure industrial fluid control. This valve is made of forged carbon steel, featuring outstanding strength and corrosion resistance, and it can withstand pressures as high as 1500 pounds per square inch. Its unique three-piece (3PC) flanged design and short stem structure make it excellent in terms of installation, maintenance, and operation, and it is widely used in industries such as petroleum, natural gas, chemical, and electric power.

DN250 PN100 Forged Steel A105 Full Port Flange 3PC Trunnion Ball Valve

CHINA J-VALVES DN250 PN100 Forged Steel A105 Full Port Flange 3PC Trunnion Ball Valve is a high-performance three-piece forged steel ball valve, designed for industrial applications requiring high reliability and corrosion resistance. This valve is made of ASTM A105 carbon steel, featuring excellent corrosion resistance and high strength, and is particularly suitable for high-pressure environments in industries such as petroleum, natural gas, and chemical engineering. Its flange connection ensures reliable and tight installation, and it is equipped with manual or gear-operated mechanisms for convenient on-site operation and maintenance.

16inch 300LB Carbon Steel WCB 2PC Trunnion Flanged Ball Valve

Specification and size

◦ Diameter: 16 inches (DN400)

◦ Pressure rating: Class 300 (approximately 5.0MPa)

◦ Connection method: Flanged End, conforming to international standards such as ASME B16.5

Main body material

◦ The valve body and valve cover are made of WCB carbon steel (ASTM A216), which has excellent compressive strength, wear resistance and corrosion resistance. It can adapt to the temperature range of -29 ℃ to 425℃ and meet the transportation requirements of conventional industrial media (such as gas, liquid and steam).

Structural Design

◦ Two-piece (2PC) structure

◦ Trunnion Mounted

◦ Bolt Bonnet connection

◦ Top Flange Short Stem

◦ Gearbox Operation

J-Valves China 600LB 16*14 Stainless Steel 3PC Flange Trunnion Ball Valve

J-Valves China 600LB 16"*14" stainless steel 3PC flanged valve stem ball valve is a high-performance industrial valve, specially designed to meet the harsh working conditions in the petroleum, natural gas, chemical, power and other industries. This valve is made of high-quality stainless steel, featuring high strength, corrosion resistance and excellent sealing performance. It can withstand extremely high working pressure and temperature, ensuring reliability and safety under extreme working conditions.

2PC 600LB F316 Flanged Forged Stainless Steel Reduce Bore Trunnion Ball Valve

The CHINA J-VALVES 2PC 600LB F316 flange forged stainless steel reduced bore valve stem ball valve is a high-performance industrial valve, specially designed to meet the harsh working conditions of the petroleum, natural gas, chemical, power and other industries. This valve is made of high-quality stainless steel F316 material, featuring high strength, corrosion resistance and excellent sealing performance. It can withstand extremely high working pressure and temperature, ensuring reliability and safety under extreme working conditions.

Stainless Steel Worm Gear Actuator Fire Safe 3PC Flange Trunnion Ball Valves

The stainless steel worm gear actuator fireproof three-stage flanged trunnion ball valve is a high-performance industrial valve, specially designed for the harsh working conditions in industries such as petroleum, natural gas, chemical engineering, and power. This valve is made of high-quality stainless steel, featuring high strength, corrosion resistance and excellent sealing performance. It can withstand extremely high working pressure and temperature, ensuring reliability and safety under extreme working conditions. Its three-section design allows for the maintenance and replacement of internal components without disassembling the pipes, enhancing the convenience of operation and the reliability of the system.

J-Valves High Pressure Forged Steel Trunnion Flange Ball Valves

J-Valves High Pressure Forged Steel Trunnion Flange Ball Valves is a high-performance Forged steel fixed ball valve specially designed for high-pressure working conditions. This valve is made of high-quality forged steel, featuring outstanding strength and corrosion resistance, and is capable of adapting to various harsh working conditions. Its unique fixed ball design and flange connection method ensure the stability and reliability of the valve under high-pressure conditions, and it is widely used in industries such as petroleum, natural gas, chemical engineering, and power.

Cast Steel Class600 Peek Seat TOP Trunnion Ball Valve

Cast Steel Class 600 PEEK Seat TOP Trunnion Ball Valve is a high-performance cast steel ball valve, specially designed to meet the working conditions of high pressure, high temperature and high wear resistance. This valve adopts a top inlet structure and is equipped with a PEEK (polyetheretherketone) material valve seat, featuring outstanding sealing performance and durability. It is widely used in industries such as petroleum, chemical engineering, and natural gas.

China J-Valves Forged Carbon Steel A105 3PC Flange Trunnion Ball Valve

China J-Valves Forged Carbon Steel A105 3PC Flange Trunnion Ball Valve is a high-performance three-stage flange connection ball valve, specially designed to meet the requirements of high pressure, high reliability and automatic control. This valve is made of high-quality forged carbon steel (A105), combined with a three-section structure and flange connection method. It features outstanding strength, reliable sealing performance and convenient maintenance, and is widely used in industries such as petroleum, natural gas, chemical engineering and power

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

SINCE 2009

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.