• Specialized in Butterfly Valves​​​​​​​
    Manufacturing Factory
  • Technical Support​​​​​​​
    2D Drawings, 3D Drawings​​​​​​​
  • Professional quality
    100% Factory Acceptance Testing
  • Professional And Reliable Service.
    Professional sales and reliable technology
J-VALVES  Specializes In Producing High Quality Butterfly Valves
Known for quality excellence, J-VALVES specializes in the production of high-performance butterfly valves. Our product range covers a wide range of types to meet the needs of different industries. With its unique structure, the  Three-eccentric Center  Butterfly Valve achieves excellent sealing performance, suitable for high temperature and high pressure environments, and is widely used in the petrochemical and power industry. The telescopic butterfly valve compensates the thermal expansion and cold contraction of the pipeline through the telescopic function to ensure the stable operation of the system, which is suitable for long-distance transportation and complex installation conditions. The center line flanged butterfly valve stands out for its simple design and reliable performance, stable seal and small operating torque, suitable for water supply and drainage and HVAC fields. The midline lug butterfly valve adopts a special sealing ring under ultra-high pressure, and the wide contact surface enhances the sealing effect. It can be removable and designed for easy maintenance. J-VALVES is committed to providing customers with high quality butterfly valves and wins the trust of the market with advanced technology, strict quality control and excellent service. When you choose J-VALVES, you choose reliability and efficiency.
Gear operation Ductile Iron EPDM Seat Flange Type Butterfly Valve
● Valve alias:Bronze C95800 metal sealing butterfly valve Quick Detail: ● Size:2”-64” (DN50~DN1600) ● Pressure Rating: PN16~PN160/150LB-2500LB/10K~60K) ● Body Material:A351CF8M/CF8/CF3/CF3M,A216WCB,A217 WC6/WC9,A105,GG2...
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Pneumatic Single Acting Triple Offset A216 WCB 150LB Flange Butterfly Valve
● Body Material:A351CF8M/CF8/CF3/CF3M,A216WCB,A217 WC6/WC9,A105,GG2...
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Cast Steel WCB Industrial Wafer Type Lug Butterfly Valve with Electric
● Valve alias:Bronze C95800 metal sealing butterfly valve Quick Detail: ● Size:2”-64” (DN50~DN1600) ● Pressure Rating: PN16~PN160/150LB-2500LB/10K~60K) ● Body Material:A351CF8M/CF8/CF3/CF3M,A216WCB,A217 WC6/WC9,A105,GG2...
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Manual Operated Cast Steel WCB Industrial Wafer Type Lug Butterfly Valve
● Valve alias:Bronze C95800 metal sealing butterfly valve Quick Detail: ● Size:2”-64” (DN50~DN1600) ● Pressure Rating: PN16~PN160/150LB-2500LB/10K~60K) ● Body Material:A351CF8M/CF8/CF3/CF3M,A216WCB,A217 WC6/WC9,A105,GG2...
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Cast Steel EPDM Lined Industrial Wafer Type Lug Butterfly Water Valve
● Valve alias:Bronze C95800 metal sealing butterfly valve Quick Detail: ● Size:2”-64” (DN50~DN1600) ● Pressure Rating: PN16~PN160/150LB-2500LB/10K~60K) ● Body Material:A351CF8M/CF8/CF3/CF3M,A216WCB,A217 WC6/WC9,A105,GG2...
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EPDM Rubber Lined Seal Double Flanged Connection Butterfly Valve
● Valve alias:Bronze C95800 metal sealing butterfly valve Quick Detail: ● Size:2”-64” (DN50~DN1600) ● Pressure Rating: PN16~PN160/150LB-2500LB/10K~60K) ● Body Material:A351CF8M/CF8/CF3/CF3M,A216WCB,A217 WC6/WC9,A105,GG2...
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150LB Cast steel LCB Butt Welded Triple Offset Butterfly Valve
● Valve alias:Bronze C95800 metal sealing butterfly valve Quick Detail: ● Size:2”-64” (DN50~DN1600) ● Pressure Rating: PN16~PN160/150LB-2500LB/10K~60K) ● Body Material:A351CF8M/CF8/CF3/CF3M,A216WCB,A217 WC6/WC9,A105,GG2...
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Triple Offset A216 WCB 150LB Flange Butterfly Valve
● Valve alias:Bronze C95800 metal sealing butterfly valve Quick Detail: ● Size:2”-64” (DN50~DN1600) ● Pressure Rating: PN16~PN160/150LB-2500LB/10K~60K) ● Body Material:A351CF8M/CF8/CF3/CF3M,A216WCB,A217 WC6/WC9,A105,GG2...
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Lug Type Cast Steel WCB Triple Eccentric Butterfly Valve
● Valve alias:Bronze C95800 metal sealing butterfly valve Quick Detail: ● Size:2”-64” (DN50~DN1600) ● Pressure Rating: PN16~PN160/150LB-2500LB/10K~60K) ● Body Material:A351CF8M/CF8/CF3/CF3M,A216WCB,A217 WC6/WC9,A105,GG2...
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Manual Operated Cast Steel CF8M Flanged Butterfly Valve 150LB
● Valve alias:Bronze C95800 metal sealing butterfly valve Quick Detail: ● Size:2”-64” (DN50~DN1600) ● Pressure Rating: PN16~PN160/150LB-2500LB/10K~60K) ● Body Material:A351CF8M/CF8/CF3/CF3M,A216WCB,A217 WC6/WC9,A105,GG2...
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Flanged Stainless Steel Control Butterfly Valve with Solenoid Pneumatic Actuator
● Valve alias:Bronze C95800 metal sealing butterfly valve Quick Detail: ● Size:2”-64” (DN50~DN1600) ● Pressure Rating: PN16~PN160/150LB-2500LB/10K~60K) ● Body Material:A351CF8M/CF8/CF3/CF3M,A216WCB,A217 WC6/WC9,A105,GG2...
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Stainless Steel SS A351 CF8M Flanged RF Butterfly Valve with Turbine box
● Valve alias:Bronze C95800 metal sealing butterfly valve Quick Detail: ● Size:2”-64” (DN50~DN1600) ● Pressure Rating: PN16~PN160/150LB-2500LB/10K~60K) ● Body Material:A351CF8M/CF8/CF3/CF3M,A216WCB,A217 WC6/WC9,A105,GG2...
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Stainless Steel CF8 Lug Type Metal Seal Butterfly Valve with Worm Gear
● Valve alias:Bronze C95800 metal sealing butterfly valve Quick Detail: ● Size:2”-64” (DN50~DN1600) ● Pressure Rating: PN16~PN160/150LB-2500LB/10K~60K) ● Body Material:A351CF8M/CF8/CF3/CF3M,A216WCB,A217 WC6/WC9,A105,GG2...
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BUTTERFLY VALVES
J-VALVE has become known as a manufacturer of high quality butterfly valves. These valves are designed with precision and made of first-class materials to ensure durability and reliability in a wide range of applications.
Lug Type Triple Eccentric Butterfly Valve
Pneumatic operation flange triple eccentric butterfly valve
Center Line Soft Seal Butterfly Valve
High performance butterfly valve
J-VALVES BUTTERFLY VALVES
We can provide the professional spirit and quality !

I.Basic Structure

The structure of butterfly valve is mainly composed of several core parts. The valve body as the infrastructure of the butterfly valve, its shape is mostly round or oval, and the material selection is extremely sophisticated, such as corrosion-resistant cast iron, 

high-strength cast steel and stainless steel resistant to special media. The valve body not only provides stable support for the butterfly valve, but also builds a fluid flow channel, the selection of different materials is designed to fit the complex and diverse industrial production environment, whether it is conventional water, gas transmission, or corrosive chemical fluid transmission, can cope with freely. ​The butterfly plate is the core component of the butterfly valve, which is like a rotating disk placed inside the valve body, and the size is precisely adapted to the valve diameter. During operation, the disc rotates flexibly around a specific fixed shaft, and the fine gap between the edge and the inner wall of the valve body not only ensures the smooth rotation of the disc, but also maintains the compactness of the overall structure of the valve. 


II.Working Principle

The working principle of the butterfly valve is based on the rotating motion of the butterfly plate around the axis of the valve stem. When the butterfly valve needs to be opened, the drive device receives the opening instruction, generates the corresponding torque and transmits it to the butterfly plate through the valve stem, and the butterfly plate begins to rotate counterclockwise around the axis. As the disc rotates, the seal between it and the seat is gradually separated, and the fluid channel is gradually opened to allow fluid to pass through the valve. When the disc is rotated to the 90° position, the valve is fully open, and the fluid flows almost unhindered in the pipe, and the flow rate is maximum. ​When the butterfly valve is closed, the driving device outputs torque in reverse according to the closing instruction, and the valve stem drives the butterfly plate to rotate clockwise. As the plate moves closer to the seat, the fluid passage Narrows. When the disc is turned back to the initial 0° position, the disc is tightly fitted with the sealing surface of the valve seat, completely blocking the fluid flow and closing the valve. During the whole opening and closing process, the precise adjustment of the fluid flow can be achieved by precisely controlling the rotation Angle of the butterfly plate. 

Sealing Property

The sealing design of the butterfly valve is unique, and the valve seat is closely fitted with the butterfly plate to form a tight sealing structure. When the valve is closed, it can effectively resist the impact of high pressure fluid and prevent medium leakage. Even in the face of corrosive media, special sealing materials can ensure long-term stable sealing effect, provide a safe and reliable guarantee for industrial production, and avoid production accidents and environmental pollution caused by leakage.

Compact Structure

The butterfly valve uses a compact structure design, compared with other types of valves, small size, light weight. This feature makes it unnecessary to use large lifting equipment during the installation process, saving labor and time costs. At the same time, in the pipeline system with limited space, the butterfly valve can be flexibly installed and will not occupy too much space, which provides convenience for pipeline layout optimization.

Low Operating Torque

The butterfly valve is designed so that the disc rotates with minimal operating torque during opening and closing. When manually operated, the operator only needs to easily turn the handle to realize the opening and closing action of the valve, which greatly reduces the labor intensity. If electric, pneumatic or hydraulic drive is used, the power required for the drive device is also reduced, which improves the ease of operation and reduces energy consumption.

SINCE 2009
There are many brandsof  butterfly valves.How to choose a suitable one?Choose J-VALVES For High Quality butterfly valves.
Durability is a cornerstone of J-VALVES product philosophy. These valves are constructed from high-grade materials, carefully selected to withstand the harshest industrial environments. In corrosive settings, such as those found in the chemical and marine industries, J-VALVES utilizes 
corrosion-resistant alloys like stainless steel and nickel-based alloys. This choice of materials ensures that the valves remain intact and functional, even when exposed to aggressive chemicals or saltwater for extended periods. Moreover, the materials are heat-treated to enhance their mechanical properties.
High Efficiency And Energy Saving

J-VALVES Butterfly valves have an advanced streamlined design and an optimized body structure that minimizes fluid resistance through the flow. This design not only improves the efficiency of fluid transmission, but also significantly reduces energy consumption and saves operating costs for enterprises.

Sealing Property

J-VALVES Butterfly valves use high quality sealing materials combined with advanced sealing technology to ensure zero leakage under all operating conditions. Whether it is high pressure, high temperature or corrosive media, it can maintain excellent sealing effect, effectively prevent media leakage.

Long Life And High Reliability
The valve bodies and main components of J-VALVES are manufactured from high-quality materials and subjected to rigorous quality and durability testing to ensure stable performance in long-term use.Its unique structural design and application of wear-resistant materials.
Diversified Actuate Mode

J-VALVES Butterfly valves offer a variety of actuation methods, including manual, electric, pneumatic, etc., to meet the needs of different users in terms of ease of operation and degree of automation. Electric and pneumatic butterfly valves can be easily controlled remotely and seamlessly interconnect with automation systems to improve production efficiency and intelligence.

Three-eccentric Center
Butterfly Valve

The three-eccentric structure optimizes the movement of the butterfly plate, which greatly reduces the operating torque of the valve. Manual drive is easy and labor-saving, electric, pneumatic, hydraulic drive, drive device power demand is reduced, not only improve the convenience of operation, but also reduce energy consumption and cost. In the need to quickly control the flow of the scene, such as emergency cut-off system, butterfly valve can respond quickly, the butterfly plate quickly in place, to meet the high reaction speed of the industrial process requirements.

01 02 03 04 05
Professional quality
Telescopic Butterfly Valve

 Its unique telescopic structure can effectively deal with the displacement of the pipeline due to temperature change, foundation settlement and other factors. When the pipeline is expanded by heat or contracted by cold, the telescopic butterfly valve can be adjusted by its own expansion to absorb these dispositions and prevent the pipeline from being damaged due to stress concentration.

Double Eccentric Butterfly Valve

The durability and reliability of the double eccentric butterfly valve are also very prominent. The double eccentric design reduces the relative sliding between the sealing surfaces during the movement of the butterfly plate, significantly reduces the degree of wear, and the operation of the butterfly plate and the seat is not easy to stick, so as to avoid abnormal friction damage to the parts.

Midline Lug Butterfly Valve

The midline lug butterfly valve adopts an advanced midline sealing structure, and the butterfly plate fits tightly with the valve seat, which can achieve two-way sealing and ensure zero leakage of fluid control. This design not only improves the sealing performance, but also effectively extends the service life of the butterfly valve.

Center Line Flange  Butterfly Valve

The structure of the center line flange butterfly valve is relatively simple, mainly composed of the valve body, the butterfly plate, the valve stem and the sealing device. This simple structure makes the valve small in size, light in weight and easy to install, disassemble and transport. In some space limited occasions, such as ships, offshore platforms, etc., the compact structure of the center line flange butterfly valve is more advantageous.

J-VALVES BUTTERFLY VALVES
PROFESSIONAL TECHINCAL TEAM
Our J-VALVES butterfly valves are crafted with meticulous attention to detail. The use of premium-grade materials ensures outstanding resistance to corrosion, wear, and 
high-pressure environments. The design of 
J-VALVES butterfly valves is a testament to advanced engineering. They provide precise flow control, allowing for efficient regulation of fluids. With a  smooth- acting mechanism, they minimize pressure drops, optimizing the overall efficiency of the system.
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.​​​​​​​
  • Precision Engineering of J-VALVES Butterfly Valv​​​​​​​e
    J-VALVES butterfly valves are the result of meticulous engineering. Each valve is designed with precision-machined components, ensuring a seamless fit and optimal performance.The valve's disc is crafted to exact specifications, enabling smooth and efficient modulation of fluid flow, whether it's a viscous liquid in a chemical plant or a high-pressure gas in an oil refinery. This precision engineering not only guarantees reliable operation but also significantly extends the valve's service life, reducing maintenance costs over time.
Three-eccentric Center
Butterfly Valve
The core advantage of the three-eccentric center butterfly valve is its excellent sealing performance. The unique three-eccentric structure is the key. The first eccentric makes the sealing surface of the butterfly plate in linear contact with the seat during initial contact, greatly increasing the specific sealing pressure. The second eccentric optimization of the opening and closing trajectory of the disc reduces the friction and wear of the sealing surface to ensure long-term stable sealing. The third eccentricity ensures that the sealing surface is detached when the butterfly plate is fully opened to prevent media erosion damage. With enhanced polytetrafluoroethylene, rubber and other high-performance sealing materials, in high pressure, high vacuum and strong corrosion and other harsh conditions, can also achieve zero leakage, providing reliable fluid seal protection for industrial production. ​
Telescopic Butterfly Valve

Convenient installation and maintenance is also a prominent feature of the telescopic butterfly valve. Its structure design is compact and reasonable, compared with some complex valves, there is no need for too much complex operation and large installation equipment in the installation process, which can effectively save installation time and labor costs. Moreover, in daily maintenance, because of its simple and clear structure, easy to check and repair, maintenance personnel can quickly locate and solve problems, reduce maintenance difficulty and cost, improve the maintainability of equipment, and extend the service life of the valve. ​
In addition, the telescopic butterfly valve has obvious advantages in flow regulation. By precisely controlling the rotation Angle of the butterfly plate, the fluid flow in the pipeline can be finely adjusted. In different industrial production links, according to the process needs, it can be flexibly adjusted within a large flow range, whether it is the precise control of small flow, or the moderate adjustment of large flow, it can meet the production requirements, ensure the stability of the production process and the consistency of product quality, and help enterprises to improve production efficiency and product quality.

Midline Lug Butterfly Valve

In the field of industrial fluid control, midline lug butterfly valves are gradually becoming the preferred solution for many enterprises due to their excellent performance and wide range of application scenarios. Whether it is the chemical, petroleum, pharmaceutical or environmental protection industries, mid-line lug butterfly valves can provide reliable protection for your production process with their unique design and efficient functions.

The midline lug butterfly valve is suitable for a variety of fluid media, including water, steam, oil, corrosive media, etc., and is widely used in chemical, petroleum, pharmaceutical, food processing, environmental protection and other industries. Whether it is a high temperature and high pressure environment, or working conditions with extremely high sealing requirements, the midline lug butterfly valve can operate stably to ensure the safety and efficiency of the production process

Center Line Flange 
Butterfly Valve

The unique centerline structure gives the butterfly valve excellent operating performance. During opening and closing, the disc rotates smoothly around the center line and the operating torque is significantly reduced. Manual operation, the worker can easily turn the handle to complete the valve action, greatly reducing labor intensity; If the electric and pneumatic drive is used, the energy consumption of the drive device is greatly reduced, and the energy-saving effect is remarkable. Moreover, the structure makes the butterfly valve compact as a whole, occupies a small space, and is flexible and convenient to install in the layout of industrial pipelines with limited space, providing more possibilities for the optimal design of pipeline systems.

J-VALVES is a Company Specializing in the Production of Butterfly 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 butterfly valve for users.
  • Exquisite manufacturing technology​​​​​​​​​​​​​​
    The production team of 
    J-VALVES is experienced, and every process of producing butterfly 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 butterfly 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
  • 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. Thquality inspection team uses advanced equipment to comprehensively test the ball valve to ensure excellent product quality, leading the pass rate in theindustry, and ensuring product quality.​​​​​​​
Butterfly Valve Production Process Flow
The production process of butterfly valves covers such links as design, raw material procurement, machining, assembly, inspection, and packaging and shipping. In the design stage, parameters are determined, modeled, simulated and optimized according to customer and working condition requirements and standards. For raw material procurement, high-quality suppliers are selected and materials are strictly inspected. Machining is divided into rough machining, finish machining and surface treatment. Assembly requires cleaning the parts and assembling and debugging according to the regulations. Inspection includes pressure and performance tests and appearance and dimension checks. The packaging uses plywood wooden boxes which are suitable for long-distance transportation.
Basic Structure of Butterfly Valve

The basic structure of the butterfly valve includes the valve body, the butterfly plate, the stem, the seat and the sealing ring and other key components. The valve body, as the main frame, is made of high-quality materials to ensure the strength and corrosion resistance of the valve. The butterfly plate is the core part of the butterfly valve, which rotates in the valve body through the rotation of the valve stem to realize the on-off of the fluid and the flow regulation. The seat fits closely with the disc to form a sealing pair, ensuring that the valve can effectively prevent fluid leakage when closed.

  • 01
    Maintenance Work

    The structure of the butterfly valve is relatively simple, and the number of internal parts is small, which makes its maintenance work easy and convenient. In daily maintenance, it is only necessary to regularly check the wear of the seals, the operating status of the drive device and the integrity of the butterfly plate, and if necessary, it can be quickly replaced or repaired.

  • 02
    Accurate Flow Regulation

    By precisely controlling the rotation Angle of the butterfly plate, the fluid flow can be fine-adjusted, from a small flow to a large flow range, can be stable and accurate control. Whether it is in the chemical industry, petroleum and other industries with high requirements for flow control accuracy, or in the water supply and drainage system and other scenarios that need to flexibly adjust the flow according to actual needs, butterfly valves can rely on excellent adjustment performance.

  • 03
    Advanced Sealing Technology

    J-VALVES Butterfly valves use advanced sealing technology combined with high-quality sealing materials to ensure zero leakage under all operating conditions. Whether it is a soft seal butterfly valve or a metal hard seal butterfly valve, it can maintain excellent sealing effect in complex environments such as high pressure, high temperature and corrosive media.

We have an excellent technical team
J-VALVES Company Specializes In The Production of High-quality Butterfly Valve Products
The working principle of the butterfly valve is based on rotational motion. The driving device causes the valve stem to drive the butterfly plate to rotate. When the butterfly plate is parallel to the axis of the pipeline, the valve is fully open and the fluid flows smoothly; when it is vertical, the valve is fully closed to cut off the fluid. During the rotation of the butterfly plate, changing the angle with the flow direction of the fluid can adjust the 
cross-sectional area of the flow. The smaller the angle, the greater the flow, and vice versa.
Advantages of J-VALVES Company's Quality Control Methods for Butterfly Valves​​​​​​​
J-VALVES CHINA COMPANY has obtained certifications such as ISO 9001 for its quality management system. This alignment with international standards has propelled the company's quality management processes onto the global stage, garnering extensive recognition in the international market. It significantly bolsters the company's brand image and market competitiveness, making it more effortless to earn the trust of both domestic and foreign customers and laying a solid foundation for global business expansion.
By adhering to international and industry standards like API and ASME to regulate production and quality control procedures, the company ensures the stability and consistency of its product quality. Regardless of the project or market environment, high-quality products can be consistently delivered, minimizing issues and risks stemming from inconsistent quality standards.
  • Quality Management​​​​​​​
    In terms of quality management, the quality specifications of butterfly valves are formulated according to national standards, industry standards and enterprise's own standards, and the internal enterprise standards are further refined in combination with actual working conditions.​​​​​​​
  • Raw Material Testing​​​​​​​
    The source of raw material supply is strictly controlled, and each batch of raw materials is carefully inspected to meet the design requirements. At the same time, advanced software is used to optimize the design, and cross-department collaborative reviews are organized to ensure that the design is both reasonable and manufacturable. ​​​​​​​
  • Quality Control
    In terms of quality control, process inspection links are set up during the production process, the precision of equipment is carefully maintained, and statistical process control is used to monitor key quality characteristics. After the finished products are completed, comprehensive performance tests and appearance inspections are carried out.
About Our Butterfly valvas
The advantages of butterfly valve product types
J-VALVES excels in manufacturing high-quality butterfly valves. Our product lineup includes Three-eccentric center Butterfly Valves, Telescopic Butterfly Valves, Centerline Flange Butterfly Valves, and midline lug butterfly valve.
Three-eccentric center Butterfly Valves feature a unique design for low friction and long lifespan, ideal for industries like oil and gas. Double Expansion Butterfly Valves, widely used in various fields, are compact, easy to operate, and energy-efficient. Centerline Flange Butterfly Valves work well in low-pressure and normal-temperature systems. midline lug butterfly valve, with corrosion-resistant , are perfect for handling aggressive media.If you are looking for a high quality butterfly valve product, whether it is a three-eccentric center butterfly valve, a telescopic butterfly valve, a centerline flanged butterfly valve or a midline lug butterfly valve, J-VALVES can provide you with the best quality solutions. When you choose J-VALVES, you choose reliability, efficiency and professionalism.
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