J-VALVES Specializes In Producing High Quality Check Valves

J-VALVES has a wide range of product lines, including swing check valves, lift check valves, axial flow check valves and swash plate check valves. The swing check valve, with its unique disc design, can effectively prevent fluid backflow in large diameter pipelines, opening and closing quickly, reducing pressure loss. The lift check valve is controlled with precise spool lifting to ensure a stable check function in small diameter pipes with excellent sealing. The axial flow check valve is suitable for high flow rate conditions, and the unique streamlined design greatly reduces the fluid resistance and ensures the smooth flow of the medium. Swash plate check valves perform well in complex pressure environments, and the tilt Angle of the disc is carefully designed to effectively cope with various fluctuating pressures and prevent media backflow.

Quality Industrial Valve Product Made in China J-Valves Stainless Steel CF8m High Pressure Wafer Type Dual Double Plate Check Valve

The Stainless Steel CF8m High Pressure Wafer Type Dual Double Plate Check Valve is engineered for critical high-pressure systems, delivering reliable non-return flow control in corrosive environments. Constructed from CF8M (316 stainless steel), it resists pitting and crevice corrosion in chloride-laden media like seawater and acidic chemicals, ideal for oil refineries, chemical plants, and power generation. The dual double-plate design minimizes water hammer effects by allowing rapid closure, while the wafer-style body ensures compact installation between flanges (ASME B16.5). With a pressure rating up to 2500LB and temperature resistance to 450°C, it features spring-loaded plates for tight sealing at low flow rates and full-bore passage for minimal pressure drop. Certified to API 594 and ASME B16.34, this valve provides bidirectional flow capability and fire-safe performance, making it a trusted choice for high-integrity pipelines handling hydrocarbons, steam, and aggressive fluids.

China-Made J-Valves 2 inch ANSI Class 150 Stainless Steel CF8M Bolted bonnet Flange End High-performance Swing Type Check Valve

Introducing our 2 inch ANSI Class 150 Stainless Steel CF8M Bolted bonnet Flange End High - performance Swing Type Check Valve. Sized at 2 inches, it fits seamlessly into a variety of pipelines. With an ANSI Class 150 rating, it can handle moderate pressure systems with ease. Constructed from stainless steel CF8M, it offers excellent corrosion resistance, making it suitable for harsh environments. The bolted bonnet design ensures easy maintenance and repair. The flange end connection provides a secure and leak - tight fit. What sets it apart is its high - performance swing mechanism. This allows for quick response to fluid flow changes, efficiently preventing backflow. It's a reliable choice for industries like oil and gas, chemical, and water treatment, optimizing system performance and safety.

Quality Industrial Valve Product Made in China J-Valves 2500LB C12A High-pressure Butt-welding Self-sealing Swing Check Valve

The 2500LB C12A High-pressure Butt-welding Self-sealing Swing Check Valve is engineered for critical applications requiring reliable flow reversal prevention in high-pressure systems. Its self-sealing design ensures zero leakage under extreme conditions, while the forged C12A alloy steel construction provides exceptional resistance to thermal fatigue and corrosion. Compliant with API 6D and ASME B16.34 standards, this valve features a swing disc mechanism for minimal pressure drop and is ideally suited for hydrocarbon processing, power generation, and petrochemical pipelines.

Quality Industrial Valve Product Made in China J-Valves 150LB 2'' Stainless Steel CF8M Flange End RF Swing Check Valve

The Stainless Steel CF8M Swing Check Valve is a high - performance industrial solution. Crafted from CF8M stainless steel, it showcases remarkable strength and outstanding corrosion resistance, enabling it to endure harsh chemical and environmental conditions. Its swing - check mechanism ensures smooth one - way fluid flow while automatically preventing backflow, protecting the integrity of the entire pipeline system. This valve is engineered for reliability, making it an ideal choice for diverse fluid - handling requirements across multiple industries.

Quality Industrial Valve Product Made in China J-Valves 150LB 4'' Stainless Steel CF8M Flange End RF Swing Check Valve

The Stainless Steel CF8M Flange End RF Swing Check Valve is a top - tier industrial valve. Made of CF8M stainless steel, it combines high strength with excellent corrosion resistance. Its flange - end RF design ensures a secure and reliable connection. With a swing - check mechanism, it allows for smooth one - way flow, making it perfect for a variety of fluid - handling systems.

Quality Industrial Valve Product Made in China J-Valves 300lb Stainless Steel F304 Flange End RF Lift Check Valve

The Stainless Steel F304 Flange End RF Lift Check Valve is a high - performance industrial valve. Made of premium F304 stainless steel, it offers excellent corrosion resistance, ensuring long - term service in various fluid - handling systems. As a lift check valve, it functions by automatically preventing reverse flow. When the fluid flows in the forward direction, it lifts the disc to allow smooth passage. Once the flow reverses, the disc drops back to its seat, providing reliable shut - off. Ideal for use in water, oil, and gas pipelines, as well as in chemical processing plants, this valve is a reliable choice for ensuring system integrity and efficient operation.

DN150 PN16 Stainless Steel CF8 SS304 Double Flap Wafer Check Valve

Double-disc check valves are used for purifying pipelines and industrial, environmental protection, water treatment, high-rise building water supply and drainage pipelines to prevent the reverse flow of media. The check valve adopts the clamping type, the butterfly plate is two semicircular, and the spring is forced to reset, the sealing surface can be the body surfacing welding wear-resistant material or rubber lining, and the application range is wide and the sealing is reliable.

12inch 300lb Carbon Steel WCB Flange Swash Plate Check Valve View More

24inch 900lb Carbon Steel LCB Flange Cryogenic Axial Flow Check Valve View More

20inch 600lb Carbon Steel WCB Flange Axial Flow Check Valve View More

DN700 PN16 Carbon Steel LCB Flange Axial Flow Check Valve View More

12inch 300lb Stainless Steel CF8 Double Flap Wafer Check Valve View More

API 8inch 150lb Ductile Iron DI Double Flap Wafer Check Valve View More

JIS 20K Carbon Steel A105 Wafer Check Valve View More

16inch 1500lb Stainless Steel CF8M High Pressure Double Flap RTJ Check Valve View More

Lug Type WCB Non Return Double Disc Wafer Check Valve View More

DN65 Stainless steel CF8M Single flap wafer check valve View More

DN250 PN10 4A One way check valve View More

API 150LB carbon steel WCB LUG wafer check valve View More

40inch 150lb carbon steel WCB Double flap wafer check valve View More

Flanged type Double Disc Swing Check Valve

CHECK VALVES

J-VALVES check valves, with its deep brand heritage and significant advantages, stand out and become the only choice trusted by many ndustries.

Swing Check Valve

Stainless Steel Tilting Disc Check Valve

Axial Flow Check Valve

Forged Steel Swing Check Valve

Stainless Steel Swing Check Valve

J-VALVES CHECK VALVES

Basic Structure Working Principle And Application Scenario

I.Exquisite Structural Design

The structure of the check valve is not complicated, but every component is crucial. The core component is the valve disc, which is usually round or conical, installed inside the valve body and can be freely moved. The valve body is the "shell" of the entire valve that holds the fluid and provides support for other components. The valve seat is located inside the valve body and is closely matched with the valve disc to form a sealing surface. When the fluid is flowing forward, the disc is separated from the seat. When the fluid tries to flow back, the disc snaps against the seat, preventing the fluid from passing through. In addition, some check valves are equipped with a rocker or spring device to enhance disc sensitivity and seal performance.

II.Unique Working Principle

The working principle of the check valve is based on the pressure difference of the fluid and the automatic action of the valve disc. When the fluid enters through the inlet end, its pressure pushes the disc away from the seat, opening the valve channel and allowing the fluid to pass through. When the fluid tries to flow in the opposite direction, the pressure acts on the other side of the disc, causing it to quickly fit the seat and close the channel, thus preventing the fluid from flowing back. This process is completely automatic and requires no human intervention, ensuring a one-way flow of fluid.

III.Wide Range Of Application Scenarios

With its simple and efficient structure and working principle, check valves are widely used in various industrial and civil fields. In the water supply and drainage system, it can effectively prevent the backflow of water when the pump stops, and protect the pump and pipeline from damage; In the field of petrochemical industry, it can prevent corrosive media backflow, avoid equipment corrosion and leakage; In the HVAC system, it ensures the one-way flow of hot and cold water to maintain the stable operation of the system. It can be said that check valves are an integral part of modern fluid control systems.

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High-Quality Materials

The use of top-notch materials is a key strength. J-VALVES carefully selects materials based on application scenarios and media properties. In corrosive environments like petrochemical plants, special anti-corrosion alloys are used. Under high-pressure and high-temperature conditions, heat-resistant and

high-strength metals are chosen. These materials give the valves great wear and corrosion resistance, extending their lifespan and reducing replacement costs and production disruptions.

Advanced Technology For Performance

J-VALVES' R & D team integrates advanced tech into valve design. Fluid dynamics simulation optimizes the internal flow path, cutting flow resistance and improving energy efficiency. Innovative sealing technology achieves near-zero leakage, preventing environmental pollution and resource waste. Intelligent sensing technology monitors valve status and fluid parameters, providing data for maintenance and early failure warnings, enhancing reliability.

Versatile Adaptability

These check valves are highly versatile. They can be used in various industries, from
large-scale ones like petrochemical and power to civil engineering-related fields such as water supply and HVAC, and even in special industries with strict hygiene and safety requirements like food and pharmaceuticals. With a wide range of sizes, pressure ratings, and connection types, they can easily fit into different pipeline systems, making J-VALVES a trusted choice for fluid control.

High temperature pressure sealed check valve

SINCE 2009

There are many brands of check valves. How to choose a suitable one?Choose J-VALVES For High Quality Check valves

The disc is the core component of the check valve, and J-VALVES takes great pains in its design and structure. Common flat, plunger, and streamlined discs are presented in J-VALVES Check valves. For different working conditions, users can choose flexibly. For example, in conventional scenarios where the requirement for flow regulation is not high, the flat disc plays a role with its simple and practical structure; In the harsh working conditions of high pressure and high sealing requirements, the plunger disc with excellent sealing performance, like a solid fortress, effectively prevents fluid leakage; For systems that pursue high efficiency and energy saving, the streamlined valve disc plays an important role in reducing the resistance of fluid inside the valve, making the fluid flow smoother and saving a lot of energy costs for enterprises.

Precision Manufacturing Process

J-VALVES uses advanced precision casting and CNC machining to strictly control component dimensional tolerances to ensure smooth internal flow channels, improve valve strength and durability, and ensure stable operation of check valves under complex conditions.

Excellent Sealing Performance

The sealing surface of the valve disc and the seat is specially ground, and the high-quality elastic, wear-resistant and corrosion-resistant material is selected. It can be closely fitted during counter-flow, effectively preventing leakage and ensuring the safety of the pipeline system.

Multiple Application Scenarios

With a variety of materials and flexible structure, whether it is water supply and drainage, chemical corrosion, or food and beverage hygiene requirements, it can be adapted to different industries and working conditions, and play an excellent check function.

Energy-saving Construction

Optimize the internal structure and design the flow path according to fluid dynamics, so that the valve disc can open smoothly, the fluid flow is smooth, reduce energy loss, and help the enterprise to save energy and increase efficiency.

Swing Check Valve

One of the outstanding advantages of swing check valves is the minimal fluid resistance. When the fluid is flowing forward, the valve disc rotates quickly and opens close to the pipe wall, opening up a smooth passage for the fluid, greatly reducing energy loss and reducing the operating cost of the pipeline system. The advantages are especially obvious in large caliber and high flow conditions. Good sealing is also a major highlight. Once the fluid stops flowing or reverse flow, the disc quickly falls back under the action of gravity and fluid pressure, and is closely fitted with the seat to block the reverse flow.

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Professional quality

Axial Flow Check Valve

The unique streamlined design of the axial-flow check valve allows fluid to flow through the valve as smoothly as in an open river, almost unhindered. This design greatly reduces energy consumption and saves a lot of operating costs for enterprises. In today's environment of advocating energy conservation and emission reduction, the axial flow check valve is undoubtedly a model of high efficiency and energy saving.

Lift Check Valve

The lift check valve is simple in structure and consists of main components such as body, disc, seat, etc. It is easy to disassemble and assemble. Daily maintenance and overhaul do not require special tools and complex processes, saving maintenance time and cost, to ensure the continuity of industrial production. And it is suitable for a wide range of water, steam, oil, gas and other media, as well as from low pressure and low temperature to high pressure and high temperature environment, can work stably.

Double Flap Check Valve

Double plate check valve adopts double plate structure, two valve plates can be rotated flexibly in the valve body. This design is more effective in dealing with complex fluid conditions than traditional single-disc check valves. When the fluid is flowing forward, the double plate will be quickly opened, and the opening Angle is large, which greatly reduces the resistance of the fluid passing and ensures the smooth flow.

Swash Plate Check Valve

The compact structure and small footprint of the swash plate check valve make it easy to adapt to old factories with limited space or new projects with strict layout requirements, and the installation process is simple and quick, greatly saving installation time and labor costs. Moreover, its simple and reasonable structural design makes daily maintenance and parts replacement easy and easy, effectively reduces maintenance costs, and provides strong support for long-term stable operation of enterprises.

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Advantages Of J-VALVES Check Valves

The most outstanding advantage of J-VALVES check valves is their precise check function. In industrial fluid systems, fluid backflow can cause a series of serious problems, such as internal pressure imbalance, corrosion of critical components, and mixed media contamination. Through the precise disc design and precise mechanical structure, the check valve can be sensitive to changes in fluid flow, respond in an instant, and close the valve quickly and closely to ensure that the medium can only flow one-way, maintain a stable pressure environment in the system, effectively avoid damage caused by backflow to the equipment, and build a solid foundation for the stable operation of the entire industrial system.

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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.

Check Valve Is Effective Against Reverse Flow

The core function of the check valve is to prevent the reverse flow of fluid. In industrial fluid systems, once the reverse flow occurs, it can cause such as the reverse of the pump, the pressure imbalance in the pipeline, and even some equipment that has strict requirements for the flow of fluid can not work properly. The check valve can keenly sense the direction of flow of the fluid and quickly close at the moment of countercurrent, like a loyal guard to ensure that the fluid is always moving in the right direction and maintain the orderly operation of the entire system. For example, in the petroleum refining process, a variety of complex chemical reactions require accurate fluid flow control, and the check valve can avoid the countercurrent mixing of materials at different reaction stages, ensuring the accuracy and safety of the production process.

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Swing Check Valve

The application range of swing check valve is extremely wide, whether it is water, steam, oil or gas and other media, whether it is low temperature, high temperature, low pressure, high pressure and other conditions, can cope with freely, to meet the needs of different industries and scenes.

From the structural design point of view, swing check valve is composed of body, disc, seat, pin and other main components, there are no complicated parts. This simple design controls manufacturing costs, is easy to install, and makes it easier to inspect, repair, and replace parts during subsequent maintenance. In addition, its action is sensitive, the fluid flow state changes instantly, the valve disc can respond quickly, open or close in time, and protect the safety of the pipeline system.

Disc design is a top priority. Disc shape, size and weight are carefully considered, such as streamlined design to reduce vortex and pressure losses and increase valve flow capacity.

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Swash Plate Check Valve

The core advantage of the swash plate check valve stems from its exquisite swash plate design. This unique design allows the disc to respond quickly and accurately to changes in fluid flow, like a smart dancer. When the fluid is flowing forward, the valve disc quickly opens, opening a spacious channel for the fluid in a nearly unhindered attitude, greatly reducing the fluid resistance, reducing energy loss, and contributing significantly to the reduction of operating costs. Once the fluid appears the reverse flow trend, the swash plate structure promotes the valve disc to closely fit the valve seat instantly, forming a tight sealing effect, blocking the reverse flow without leakage, effectively avoiding the system failure caused by the reverse flow, and protecting the safe and stable operation of the pipeline system.

Adaptability is also a bright spot. Whether facing the complex medium of high temperature, high pressure and strong corrosion in the petrochemical industry, or the harsh working conditions of large flow and high pressure in the power industry, or the demand for stable water flow control in the water supply and drainage system, the swash plate check valve can cope with the high quality materials and exquisite technology, and continue to play the check effect.

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Axial Flow Check Valve

The efficient check performance of the axial flow check valve is also commendable. When the fluid is flowing forward, the valve is quickly opened to ensure stable fluid transmission; Once there are signs of reverse flow, the valve disc responds immediately and closes accurately to effectively prevent reverse flow and ensure the safe and stable operation of the pipeline system. Whether it is water, steam, gas or a variety of industrial fluids, the axial flow check valve is perfect for handling, showing excellent adaptability. Axial flow check valves are used in a wide range of scenarios. In the field of petrochemical industry, in the face of high temperature, high pressure and highly corrosive media, it can run stably for a long time with high-quality materials and superb technology; In the power industry, whether it is thermal power generation, hydroelectric power generation or wind power generation, the axial flow check valve can play a key role in the complex pipeline system to ensure the stability and reliability of power transmission; In the water supply and drainage system, it ensures that the water flow is one-way, providing a solid guarantee for urban water supply and sewage treatment.

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Lift Check Valve

The sealing performance of the lift check valve is exceptional. When the fluid is surging forward, the valve flap is lifted lightly, allowing the fluid to pass through without hindrance, just like opening a smooth channel. Once the fluid has a tendency to reverse flow, the valve disc is instantly accurate and falls back, and is closely fitted with the valve seat. Like a loyal guard, it can block the reverse flow without leakage, minimize the risk of leakage, and hold up a solid "umbrella" for the stable operation of the pipeline system. Its structure design is exquisite and reasonable, simple but efficient. The compact construction not only saves space, but also facilitates installation and maintenance. Whether it is a narrow ship pipeline or a precision factory with strict spatial layout requirements, it can be perfectly adapted. Moreover, the simple structure makes parts easy to check and replace, greatly reducing maintenance costs and reducing worries for your operations.

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INTERESTING IN WORKING WITH J-VALVES?

Our advanced check valve solutions from J-VALVES empower you to optimize fluid control in diverse industrial applications and flow scenarios. With state-of-the-art technology and a professional team, we have the capabilities to design, manufacture, and validate the precision and durability of check valves, ensuring seamless operation and safeguarding your systems from reverse flow hazards.

SWING CHECK VALVES

Swing Check Valves are automatic valves that prevent fluid backflow by using a swinging disc, suitable for diverse industries due to their simple design and low pressure drop.

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Double Flap Check Valve

Double disc check valves include three types: wafer type, flanged type and lug type.

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Axial Flow Check Valve

The maximum size of the axial flow check valves produced by J-VALVES can reach 56 inches and 900 pounds.

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Swash Plate Check Valve

The tilting disc check valve can be produced with both flange connection and wafer connection.

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J-VALVES PROFESSIONAL TECHINCAL TEAM

J-VALVES Company is staffed with proficient teams specialized in technology, quality inspection, production and sales, endowing it with a prominent competitive edge in the domain of check valves.

Production team

The check valves production team currently has 50 professional workers. Among them, the production manager has been engaged in industrial valve.
Professional Techincal Team

We strictly follow the international quality management system standards, the introduction of advanced automated production equipment and precision testinginstruments, to ensure that every ball valve is in line with high-precision quality requirements. From the procurement of rawmaterials to the delivery of finished products, each process is strictly controlled to ensure the stability and reliability of product quality.
Technology Service

J-VALVES CHINA have rich practical experience. J-VALVES have participated in many major global industrial projects, such as those in petrochemical, waterconservancy and hydropower, iron and steel metallurgy, urban gas and other fields. J-VALVES can customize check valves solutions according to customer requirements to ensure stable operation.

High-pressure Lug Double Disc Check Valve

Professional Quality

J-VALVES check valves uses advanced precision manufacturing technology to control every step of the process, from the rigorous selection of raw materials for the valve body to the fine processing of key components. Use high-precision equipment to accurately cut and grind the valve body and valve disc, control the dimensional tolerance within a very small range, and ensure the internal structure is accurate and correct. This exquisite process creates a very smooth sealing surface, greatly improves the sealing performance, fundamentally eliminates the hidden danger of fluid reverse flow, and lays a solid foundation for the safe operation of the pipeline system.

J-VALVES check valves offers excellent flow adaptability. The cleverly designed disc opening mechanism allows the valve to flexibly adjust the opening degree according to the fluid flow rate. In industrial production, different processes have variable demands on fluid flow. J-VALVES check valves can be accurately adapted to ensure smooth one-way flow of fluid from small flow to large-scale transmission, helping the production process to advance efficiently and stably, and improving product quality and production efficiency.

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J-VALVES Manufactures High Quality Check Valves

J-VALVES specializes in the manufacture of high quality check valves.With excellent quality and cutting-edge technology, it has become the best choice for many industries to ensure the smooth operation of industrial production.

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Product Innovation

J-VALVES has a top-notch R&D team of experienced fluid control experts, material engineers and mechanical designers. They delve into cutting-edge technologies such as fluid mechanics and material science, and constantly explore innovative designs for check valves. Through big data simulation and analysis of fluid flow trajectory inside the valve, a unique streamlined disc structure was developed.
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Strict Quality Control

J-VALVES has established a rigorous supplier selection system, working only with the industry's leading material suppliers to ensure that every batch of carbon, stainless, alloy, and other raw materials meets international high standards. In the production process, the introduction of advanced automated production equipment and high-precision testing instruments, the valve body casting, valve disc processing, sealing assembly and other processes for real-time monitoring and data recording.
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Drive Mode

J-VALVES also has a wide variety of check valves. Manual drive is easy to operate, suitable for low operating frequency and small pipe diameter, so that users can easily control the valve. The electric drive uses the motor as the power source, with the reducer, coupling and other transmission devices, to achieve remote control and automatic operation, to meet the requirements of high precision valve control and frequent operation of the scene.

We have an excellent technical team

The Working Principle of JVALVES C heck Valve

Check valve its core mission is to ensure that the fluid in the industrial pipeline is always one-way flow, prevent the occurrence of countercurrent phenomenon, and ensure the safe and stable operation of the entire pipeline system. Its working principle is based on the pressure difference of the fluid and its own unique mechanical structure design.

When the fluid flows forward into the check valve, the pressure generated by the fluid exerts a force on the disc. Pushed by this pressure, the disc overcomes its own gravity and possible friction to open along a preset path.

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Nickel-based alloy CW6MC high-pressure swing check valve

HIGH PRESSURE DOUBLE PLATE CHECK VALVES

The high-pressure flange double-disc wafer check valve is a crucial industrial valve. Specifically designed for high-pressure working conditions, it features a flange connection and a double-disc wafer structure, enabling convenient installation and saving space. In the fluid system, thanks to the flexible movement of the double discs, it can effectively prevent the backflow of the medium, ensuring the stable operation of the system. It is widely applied to high-pressure pipelines in industries such as petroleum, chemical engineering, and power, providing reliable support for safe production and efficient operation.

Packaging Standards of J-VALVES

For J-VALVES products, we adhere to strict packaging norms to ensure suitability for long-distance transportation and safeguard the product appearance. Each valve is carefully wrapped with anti-corrosion and shock-absorbing materials, such as plastic film and bubble wrap. Then, it is placed in a robust cardboard box reinforced with wooden frames if necessary. Clear labels with product specifications, handling instructions, and shipping marks are affixed on the package to provide comprehensive guidance. This way, our valves can reach customers intact, maintaining their pristine condition.

Paint Specification of J-VALVES

The paint specification of J-VALVES adheres to strict standards. The selected paint features excellent corrosion resistance, effectively withstanding erosion from various acidic and alkaline media, humid environments and industrial atmospheres, ensuring the long-term use of valves in harsh conditions. It has strong adhesion, binding tightly to the metal surface of valves and remaining intact under pressure impacts and temperature changes. In terms of color, both standard and custom options are available to meet diverse project identification needs. Moreover, the paint is carefully formulated for good gloss and texture, making valves both functional and aesthetically pleasing, reflecting J-VALVES' pursuit of quality details. The painting process is precisely adapted to different valve materials and structures to guarantee comprehensive protection.

Axial Flow Check Valve

The axial flow check valves produced by J-VALVES China Company are designed in strict accordance with international standards. With an exquisite structure and fewer internal moving parts, they effectively reduce wear and ensure long-term stable operation. Their unique axial flow design greatly reduces fluid resistance, enabling quick opening and closing. Moreover, the opening and closing process is smooth, which can significantly reduce the hazards of water hammer and noise, providing reliable and efficient check protection for various industrial pipeline systems.

Introduction to J-VALVES Stainless Steel Tilting Disc Check Valve

The J-VALVES stainless steel tilting disc check valve is a remarkable piece of engineering, expertly designed to ensure smooth and unidirectional fluid flow. Made from premium high-quality stainless steel, it exhibits outstanding corrosion resistance, making it perfectly suitable for complex and harsh media like acid-base environments. This not only extends its lifespan but also reduces maintenance requirements.

Its unique tilting disc structure is a standout feature. When fluid moves forward, the valve flap opens with great smoothness, minimizing pressure loss and enhancing energy efficiency. When the flow reverses, the flap swiftly closes, relying on gravity and reverse pressure to create a tight seal, preventing backflow and safeguarding the pipeline. Available in various sizes and with wide pressure ratings, along with convenient flange connections for easy installation, and having passed strict quality tests to meet international standards, it guarantees reliable operation.

High-temperature and High-pressure Pressure Seal Swing Check Valve

API6D 2500LB A217 WC6 Swing Check Valves by J-VALVES are engineered to meet the demands of high-temperature and high-pressure applications. They strictly adhere to API6D standards, ensuring reliable performance. The valve features a pressure self-sealing structure in the middle cavity. As the medium pressure rises, the sealing performance becomes even better, effectively preventing leakage under extreme conditions.

The sealing surfaces of the disc and seat are overlaid with Stellite (slite) cobalt-based hard alloy, endowing them with outstanding wear resistance, high-temperature tolerance, corrosion resistance, and anti-galling properties, significantly prolonging the service life. High-temperature and pressure-resistant components are made of premium heat-resistant alloy steel, guaranteeing safety, stability, and the ability to operate smoothly in the high-temperature and high-pressure pipeline systems of industries like petrochemical and power generation, providing a trustworthy check solution for complex working conditions.

High-pressure Pressure Seal Swing Check Valve

Process Structure Of Check Valve

Check valves, as the key equipment to ensure the unidirectional flow of fluid in industrial pipeline systems, have a delicate and complex process structure, and each design contains the consideration of improving performance and adapting to a variety of working conditions.

Valve Body Structure

The valve body is the basic structure of the check valve, and the manufacturing process is mainly divided into casting and forging. When casting, carbon steel, stainless steel and other high-quality metal materials are selected, melted into liquid at high temperature and injected into precision molds.
Disc Structure

The valve disc is the core component that controls the flow of fluid, and the design is extremely exquisite. The common plate type valve disc has simple structure and is suitable for ordinary working conditions with low flow regulation and sealing requirements. It can quickly respond to the forward flow of fluid and open, and can also meet the basic needs when blocking the countercurrent.
Sealing Property

The plunger disc focuses on sealing performance, and in high pressure environments, it is tightly fitted to the seat, effectively preventing the reverse leakage of fluid and providing strong counter-current protection for the piping system. The streamlined disc optimizes the shape from the perspective of fluid dynamics, significantly reduces the resistance of the fluid inside the valve, and makes the fluid flow smoother, which is excellent in high-flow conveying and energy-saving systems.

About Our CHECK VALVES

Check valve product advantages

J-VALVES offers a wide array of check valves. The Swing Check Valve, with its hinged disc, is precise and has a low pressure drop, suitable for large-volume fluid control in water, oil, and gas pipelines. The Axial Flow Check Valve, designed for space-constrained areas, provides a compact and efficient solution for high-speed pipelines. The Lift Check Valve, known for its tight shut-off, is perfect for industries where any backflow is unacceptable, like pharmaceuticals and food processing. The Swash Plate Check Valve combines the benefits of swing and lift valves, ideal for applications needing a balance between flow and backflow prevention. The Vertical Check Valve, engineered for vertical pipelines, can endure high pressures and tough conditions.In summary, J-VALVES has the right check valve for every need, making it the top choice for high-quality, reliable valves.

About Special Materials

Bronze Materials

The commonly used bronze materials include: B62 C83600, B148 C95800, B148 C95400. Bronze valves play a vital role in marine engineering, shipbuilding engineering, and fields related to seawater. These fields have extremely high requirements for valve materials, demanding outstanding corrosion resistance, high strength, and good mechanical properties.
High Temperature Alloy Steels (Cr-Mo Steel)

The high-temperature alloy steels (Cr-Mo Steel) such as ASTM A217 WC5, WC6, WC9, C5, C12, C12A and CA15 are widely used in the steam pipeline systems of oil refineries, petrochemical plants and thermal power generation.
Duplex Stainless Steels

Duplex Stainless Steels
2205 (UNS S31803, S32205),2507 (UNS S32750),ASTM A995 Gr 1A, 2A, 3A, 4A, 5A, 6A, 1B, 1C,CD4MCu (ASTM A890 - 4A),CD4MCuN (ASTM A890 - 5A),CD3MCuN (ASTM A890 - 6A)
Super Austenitic Stainless Steels(Super Duplex Stainless Steels)
904L (UNS N08904),ALLOY20 (UNS N08020) also known as Carpenter 20,CN7M (UNS N08700),AL - 6XN (UNS N08367),CN3MN (UNS J95404),254SMO (UNS S31254),F44 (UNS S31254), which is the same as 254SMO,CK3MCuN (UNS J93404),S31254, which is the same as 254SMO
Other Special Materials

Titanium and titanium alloys
Material series: such as ZTA1, ZTA2, ZTA3, ZTA9, ZTA10, ZTC4, TA1, TA2, TA3, TA9, TA10, TC4, etc
Nickel and nickel alloys
Material series: including N6, N4, N2, CZ100, Nickel200, Nickel201, N02200, N02201, etc
Monel alloy
Material series: such as Monel400, MonelK500, M35-1, M35-2, M35C, M30H, N04400, N05500, etc
Hastelloy alloy
Material series: Common ones include Hastelloy C276, Hastelloy B, Hastelloy B-2, Hastelloy C-22, Hastelloy C-4, Hastelloy G, Hastelloy G30, etc
Inconel nickel alloy
Material series: such as Inconel600, Inconel625, Incoloy800, Incoloy800H, Incoloy825, etc
zirconium
Material series: Zr702, Zr705, Zirconium702, Zirconium705, 702C, 705C, R60702, R60705, etc

Nickel based alloy CW6MC high-pressure check valve

Nickel based alloy CW6MC High Pressure Swing Check Valve

The high-pressure swing check valve made of nickel-based alloy CW6MC is one of the special material valves from J-VALVES. Besides, we produce valves using other special materials like Inconel, Monel, Hastelloy alloys and titanium alloys. These materials give our valves outstanding features. For example, Inconel resists high-temperature oxidation and corrosion well; Monel combines strength and corrosion resistance; Hastelloy alloys can endure a wide range of corrosive media; titanium alloys have an excellent strength-to-weight ratio. Our products have received great market recognition. They've been used in many industries, such as petrochemical and power generation, reliably handling harsh conditions. That's why we're increasingly trusted by European and American customers.

The Advantages of J-VALVES Bronze Check Valves

The bronze check valves produced in China by J-VALVES are made of high-quality materials, covering nickel-aluminum bronzes such as B148 C95800, B148 C95400, and B62 C83600, as well as tin bronze and aluminum bronze. Nickel-aluminum bronze features excellent corrosion resistance and mechanical properties. B62 C83600 is easy to machine, which is beneficial for precision manufacturing. Tin bronze has a high cost-performance ratio and is suitable for water supply and drainage systems. Aluminum bronze has high strength and strong corrosion resistance, and it can handle harsh working conditions in industries like petrochemicals. These valves comprehensively meet various industrial needs.

J-VALVES PRODUCT

J-VALVES Company main product series, ball valve series, gate valve series, globe valve series, check valve series, butterfly valve series,
forged steel valve series, filter series, plug valves, special material valve series, etc.

BALL VALVES

BALL VALVES

J-VALVES Company ball valve series products include floating ball valve, trunnion ball valve, high platform ball valve, metal sealing ball valve, fully welded ball valve, 3way/4way ball valve, forged steel ball valve, DBB ball valve, flanged ball valve, pneumatic ball valve, electric ball valve
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GATE VALVES

GATE VALVES

J-VALVES Company gate valve series products include API/ASME/ANSI gate valve, JIS gate valve, GOST gate valve, DIN gate valve, flanged gate valve, stainless steel gate valve, carbon steel gate valve, pressure sealing gate valve, high pressure gate valve, welded gate valve, wedge gate valve, flat plate gate valve, bellows gate valve
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CHECK VALVES

CHECK VALVES

J-VALVES Company check valve line includes swing check valve, lift check valve, piston check valve, double flap flange check valve, double flap wafer check valve, spring check valve, shaft Flow Check Valves, Welded Check Valves, Pressure Sealed Check Valves, Stop Check, Y-Type Check Valves
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GLOBE VALVES

GLOBE VALVES

J-VALVES Company Globe Valves series products include API624/ASME/BS globe valve, JIS globe valve, GOST globe valve, DIN globe valve, stainless steel globe valve, bellows globe valve, Y-type globe valve, pressure sealing globe valve, low temperature globe valve Valves, Flanged Globe Valves, Welded Globe Valves
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FORGED VALVES

FORGED VALVES

J-VALVES Company Forged Valves series products include API602 forged steel valve, forged steel gate valve, forged steel globe valve, forged steel check valve, forged steel filter, forged steel ball valve, high pressure valve, pressure sealing gate valve, pressure sealing globe valve, Pressure Sealed Check Valves, Pressure Sealed Stop Valves, Welded Valves, Threaded Valves, Integral Forged Valves, Welded Flanged Valves
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SPECIAL MATERIAL

SPECIAL MATERIAL

J-VALVES Company special material valve includes Monel valve, nickel alloy valve, titanium alloy valve, Inconel valve, Hastelloy valve, super duplex stainless steel valve, bronze valve, nickel aluminum bronze valve,
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