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J-VALVES
WCB Carbon Steel Material: The valve body is cast from WCB carbon steel with high strength and excellent pressure resistance, suitable for medium and low pressure large-bore working conditions.
Triple Eccentric Design: Adopting a three-dimensional eccentric structure (axial eccentricity, radial eccentricity and angular eccentricity), it enables friction-free opening and closing between the disc and seat, greatly extending the service life of sealing components.
Metal Hard Seal: The valve seat adopts a composite sealing structure of multi-layer stainless steel and graphite, featuring high temperature resistance and wear resistance. It works well under high temperature, high pressure and particle-containing medium conditions.
Flanged Connection: Designed with RF (Raised Face) flange complying with EN 1092-1 and GB/T 9113 standards, ensuring reliable installation and tightness for large-bore pipelines.
Bidirectional Sealing: The unique triple eccentric structure achieves bidirectional zero-leakage sealing, meeting ISO 5208 Rate A requirements.
Self-tightening Seal: The sealing performance improves with increasing medium pressure, featuring automatic sealing compensation capability.
Anti-blowout Stem: The valve stem is designed with anti-blowout structure to ensure operational safety.
Lightweight Structure: Compared with gate valves and globe valves of the same specification, it is lighter in weight and occupies less installation space, cutting the supporting cost of pipeline systems.
| Parameter Item | Specification |
Size Range | DN50~ |
Pressure Class | PN10 (PN6/PN16/PN25 available for customization) |
Temperature Range | -29℃ ~ +425℃ |
Valve Body Material | WCB (A216 Gr.WCB) |
Valve Disc Material | WCB / CF8 / CF8M (Optional) |
Valve Stem Material | 2Cr13 / 304 / 316 (Optional) |
Sealing Material | Multi-layer stainless steel & graphite composite / RPTFE / Metal hard seal |
Connection Type | Raised Face (RF) Flange |
Operation Mode | Electric (Electric actuator), Worm gear manual, Pneumatic |
Design Standard | API 609 / EN 593 / GB/T 12238 |
Test Standard | API 598 / ISO 5208 / GB/T 13927 |
Face-to-Face Dimension | Compliant with API 609 / EN 558-1 |
Leakage Class | ISO 5208 Rate A (Zero Leakage) |
Municipal Water Supply & Drainage: Applied to urban water supply and drainage pipe networks, sewage treatment plants and pump station systems, realizing reliable shut-off and regulation of high-flow media.
Power Industry: Used in cooling water systems and circulating water systems of thermal power plants and nuclear power plants to ensure efficient operation and safe isolation of the systems.
Metallurgy Industry: Suitable for blast furnace gas pipelines, hot air ducts and dust removal systems, capable of controlling high-temperature and dust-laden media.
Chemical Industry: Deployed in medium transmission and reaction systems of large-bore pipelines to prevent medium leakage and ensure production safety.
Pulp & Paper Industry: Applicable to pulp conveying pipelines and white water recovery systems, adapting to working conditions with fiber and particle-containing media.
HVAC: Installed in chilled water and hot water systems of central air conditioning in large buildings to maintain efficient system operation.
Hydraulic Engineering: Used for water transmission pipelines of reservoirs and water diversion projects to control and distribute large-volume water resources.
High Reliability for Large Bore: WCB carbon steel and triple eccentric structure ensure stable operation under large-bore, medium and low pressure conditions, reducing maintenance frequency and downtime.
Zero-leakage Sealing: Metal hard seal realizes bidirectional zero leakage, effectively lowering medium leakage risks and protecting personnel and environmental safety.
Low Operating Torque: Friction-free triple eccentric design greatly reduces opening and closing torque. Smaller actuators can be adopted to cut energy consumption and costs.
Easy Installation & Maintenance: Flanged connection simplifies installation of large-bore pipelines and facilitates on-line inspection and maintenance.
Wide Application Range: Diverse material options and wide temperature scope enable adaptation to various complex working conditions and medium characteristics.
Long Service Life & Low Comprehensive Cost: No friction and wear on sealing surfaces. Its service life is 3 to 5 times that of traditional concentric butterfly valves with lower overall maintenance cost.
Low Flow Resistance: Low flow coefficient and small pressure drop when fully open, delivering remarkable energy-saving effect and ideal for high-flow transmission systems.
