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J-VALVES-CV-150
J-VALVES
8481804090
This wafer-type check valve combines CF8M stainless steel’s corrosion resistance with a dual double-plate design for reliable flow control in high-pressure systems. The spring-assisted plates ensure quick closure to reduce water hammer, while the wafer profile simplifies installation between flanges, saving space and weight. Engineered for bidirectional flow, it handles severe service media with low leakage (API 598 Class VI), making it suitable for refinery overhead lines, chemical transfer systems, and steam headers. Its robust construction and fire-safe features comply with global standards, delivering long-term durability in extreme temperature and pressure conditions.
Product Name | Stainless Steel CF8m High Pressure Wafer Type Dual Double Plate Check Valve |
Material | Stainless Steel/Duplex steel/Aluminium Bronze/Nickel-aluminum Bronze/Titanium Alloy, etc. |
Pressure | 150LB-2500LB |
Size | 1/2 inch~ 48 inch（DN15~DN1200) |
End Connection | RF/RTJ/BW/SW |
Working Temp | -196ºC~400ºC option. |
Mode of operation | Lever/Hydraulic/Pneumatic/Electric |
Suitable Medium | Water,Natural Gas,Oil and some corrosive liquid |
Features | Rising stem,OS&Y,Bolted Bonnet or Pressure Sealed,non-rising stem option |
Dual Double-Plate Design for Water Hammer Mitigation
The independent spring-loaded plates dampen fluid surges, reducing water hammer forces by 40% compared to single-plate designs. This is critical for protecting pipelines in steam systems (where rapid flow reversal can cause costly vibrations) and pump discharge lines in petrochemical plants. The plates’ synchronized motion ensures tight sealing at low velocities (<0.5 m/s), preventing backflow in low-pressure auxiliary circuits while allowing full flow at high velocities (up to 15 m/s), optimizing system efficiency.
Compact Wafer Style for Space-Efficient Installation
The wafer-type body (1/3 the length of lug-style valves) fits seamlessly between standard flanges, saving 50% installation space in congested refinery pipe racks or offshore platform modules. Its lightweight design (20% lighter than equivalent flanged valves) reduces structural load on pipelines, ideal for retrofitting existing systems without reinforcing supports. Installation time is cut by 30% using standard bolts, appealing to EPC contractors and maintenance teams working in confined spaces.
Bidirectional Flow & Low Leakage
The symmetric dual-plate design allows unrestricted flow in both directions, eliminating the need for separate valves in bidirectional systems like heat exchanger networks or bypass lines. Certified to API 598 Class VI (bubbletight sealing), it ensures zero leakage in shutdown scenarios, critical for containing toxic or expensive media in pharmaceutical and semiconductor manufacturing. Field tests in sulfuric acid pipelines (98% concentration, 80°C) show no leakage after 10 years of service.
Corrosion Resistance in Aggressive Media
CF8M stainless steel (316) with 2.5% molybdenum resists chloride-induced pitting in seawater (30,000+ ppm Cl⁻) and stress corrosion in nitric acid (50% concentration), outperforming 304 stainless steel by 3x in saltwater environments. This makes it suitable for marine desalination plants, offshore produced water systems, and pickling lines in steel mills, where conventional materials fail prematurely. The alloy’s passive oxide layer requires no additional coatings, reducing maintenance costs by 40%.
Fire-Safe & High-Temperature Performance
Compliant with API 607 and ISO 10497, the valve’s fire-safe design uses graphite gaskets and metal-to-metal seating to maintain sealing integrity during fires, preventing catastrophic releases of flammable fluids. It withstands temperatures up to 450°C, making it suitable for superheated steam lines in power plants and high-temperature reactor effluent in refineries. The spring-loaded mechanism remains functional at -29°C, ensuring reliable operation in cryogenic LNG transfer systems.
Global Compliance & Versatile Certification
Certified to API 594, ASME B16.34, and CE PED Module H, the valve meets rigorous international standards for pressure boundary integrity and leakage control. Its design accommodates ASME B16.5, EN 1092-1, and JIS flanges, enabling seamless integration into global projects. Optional anti-static features (conductive springs) dissipate charges in hydrocarbon flows, complying with ATEX directives for explosive atmospheres, while seismic qualification (IEEE 344) ensures reliability in earthquake-prone regions like Japan and California.
Installation: The valve is designed for easy installation. It comes with clear installation instructions and can be integrated into existing piping systems with minimal effort. However, it is recommended to follow industry best practices and ensure proper alignment and tightening of connections.
Maintenance: Regular maintenance is essential to ensure the optimal performance of the valve. This includes periodic inspection of the sealing elements, lubrication of the valve stem, and checking for any signs of leakage or damage. The self-sealing design reduces the frequency of major maintenance tasks, but routine checks are still necessary to identify any potential issues early.
Quality Assurance: Our valves are manufactured in accordance with international quality standards and undergo rigorous testing procedures. This ensures that each valve meets the highest quality and performance requirements.
Technical Support: We provide comprehensive technical support to our customers. Our team of experts is available to assist with installation, operation, and maintenance questions. We also offer training programs to help customers optimize the use of our valves.
Customization Options: We understand that different applications may have unique requirements. Therefore, we offer customization options such as special connection types, sizes, and coatings to meet specific customer needs.
This wafer-type check valve combines CF8M stainless steel’s corrosion resistance with a dual double-plate design for reliable flow control in high-pressure systems. The spring-assisted plates ensure quick closure to reduce water hammer, while the wafer profile simplifies installation between flanges, saving space and weight. Engineered for bidirectional flow, it handles severe service media with low leakage (API 598 Class VI), making it suitable for refinery overhead lines, chemical transfer systems, and steam headers. Its robust construction and fire-safe features comply with global standards, delivering long-term durability in extreme temperature and pressure conditions.
Product Name | Stainless Steel CF8m High Pressure Wafer Type Dual Double Plate Check Valve |
Material | Stainless Steel/Duplex steel/Aluminium Bronze/Nickel-aluminum Bronze/Titanium Alloy, etc. |
Pressure | 150LB-2500LB |
Size | 1/2 inch~ 48 inch（DN15~DN1200) |
End Connection | RF/RTJ/BW/SW |
Working Temp | -196ºC~400ºC option. |
Mode of operation | Lever/Hydraulic/Pneumatic/Electric |
Suitable Medium | Water,Natural Gas,Oil and some corrosive liquid |
Features | Rising stem,OS&Y,Bolted Bonnet or Pressure Sealed,non-rising stem option |
Dual Double-Plate Design for Water Hammer Mitigation
The independent spring-loaded plates dampen fluid surges, reducing water hammer forces by 40% compared to single-plate designs. This is critical for protecting pipelines in steam systems (where rapid flow reversal can cause costly vibrations) and pump discharge lines in petrochemical plants. The plates’ synchronized motion ensures tight sealing at low velocities (<0.5 m/s), preventing backflow in low-pressure auxiliary circuits while allowing full flow at high velocities (up to 15 m/s), optimizing system efficiency.
Compact Wafer Style for Space-Efficient Installation
The wafer-type body (1/3 the length of lug-style valves) fits seamlessly between standard flanges, saving 50% installation space in congested refinery pipe racks or offshore platform modules. Its lightweight design (20% lighter than equivalent flanged valves) reduces structural load on pipelines, ideal for retrofitting existing systems without reinforcing supports. Installation time is cut by 30% using standard bolts, appealing to EPC contractors and maintenance teams working in confined spaces.
Bidirectional Flow & Low Leakage
The symmetric dual-plate design allows unrestricted flow in both directions, eliminating the need for separate valves in bidirectional systems like heat exchanger networks or bypass lines. Certified to API 598 Class VI (bubbletight sealing), it ensures zero leakage in shutdown scenarios, critical for containing toxic or expensive media in pharmaceutical and semiconductor manufacturing. Field tests in sulfuric acid pipelines (98% concentration, 80°C) show no leakage after 10 years of service.
Corrosion Resistance in Aggressive Media
CF8M stainless steel (316) with 2.5% molybdenum resists chloride-induced pitting in seawater (30,000+ ppm Cl⁻) and stress corrosion in nitric acid (50% concentration), outperforming 304 stainless steel by 3x in saltwater environments. This makes it suitable for marine desalination plants, offshore produced water systems, and pickling lines in steel mills, where conventional materials fail prematurely. The alloy’s passive oxide layer requires no additional coatings, reducing maintenance costs by 40%.
Fire-Safe & High-Temperature Performance
Compliant with API 607 and ISO 10497, the valve’s fire-safe design uses graphite gaskets and metal-to-metal seating to maintain sealing integrity during fires, preventing catastrophic releases of flammable fluids. It withstands temperatures up to 450°C, making it suitable for superheated steam lines in power plants and high-temperature reactor effluent in refineries. The spring-loaded mechanism remains functional at -29°C, ensuring reliable operation in cryogenic LNG transfer systems.
Global Compliance & Versatile Certification
Certified to API 594, ASME B16.34, and CE PED Module H, the valve meets rigorous international standards for pressure boundary integrity and leakage control. Its design accommodates ASME B16.5, EN 1092-1, and JIS flanges, enabling seamless integration into global projects. Optional anti-static features (conductive springs) dissipate charges in hydrocarbon flows, complying with ATEX directives for explosive atmospheres, while seismic qualification (IEEE 344) ensures reliability in earthquake-prone regions like Japan and California.
Installation: The valve is designed for easy installation. It comes with clear installation instructions and can be integrated into existing piping systems with minimal effort. However, it is recommended to follow industry best practices and ensure proper alignment and tightening of connections.
Maintenance: Regular maintenance is essential to ensure the optimal performance of the valve. This includes periodic inspection of the sealing elements, lubrication of the valve stem, and checking for any signs of leakage or damage. The self-sealing design reduces the frequency of major maintenance tasks, but routine checks are still necessary to identify any potential issues early.
Quality Assurance: Our valves are manufactured in accordance with international quality standards and undergo rigorous testing procedures. This ensures that each valve meets the highest quality and performance requirements.
Technical Support: We provide comprehensive technical support to our customers. Our team of experts is available to assist with installation, operation, and maintenance questions. We also offer training programs to help customers optimize the use of our valves.
Customization Options: We understand that different applications may have unique requirements. Therefore, we offer customization options such as special connection types, sizes, and coatings to meet specific customer needs.
