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J-VALVES
Forged Carbon Steel A105 Material:The valve body is integrally forged from ASTM A105 carbon steel, featuring a dense grain structure and excellent mechanical properties. It provides high strength and reliable pressure-bearing capacity, suitable for high-pressure working conditions and general corrosive media environments.
Four-Way Ball Design:The ball is designed with an L-port or T-port flow passage, enabling L-type or T-type flow direction control. Flow direction can be quickly switched by 90° rotation, simplifying the piping system and reducing the number of valves.
Pneumatic Actuator:Equipped with double-acting or single-acting (spring return) pneumatic actuators, with an air supply pressure of 0.4–0.7 MPa. It features rapid response and controllable opening and closing time. The single-acting type automatically resets to a safe position in case of air failure to ensure system safety.
ISO 5211 Top Flange:The connection between the actuator and the valve body adopts the ISO 5211 standard flange, facilitating the installation, disassembly and replacement of actuators, and is compatible with various pneumatic, electric and hydraulic actuators.
Flanged or Threaded Connection:Multiple connection methods are available, including flanged connection (RF, ASME B16.5) and threaded connection (NPT/BSP, ASME B1.20.1), to meet different installation requirements and ensure connection reliability.
Fire-Safe Design:Compliant with API 607 / API 6FA standards. The metal-to-metal sealing structure maintains sealing performance under fire conditions to prevent media leakage.
Anti-Static Device:Built-in anti-static spring and steel ball effectively conduct static electricity between the ball, stem and valve body, reducing fire and explosion risks and meeting requirements for hazardous area applications.
Anti-Blowout Stem Design:The valve stem adopts a bottom-entry anti-blowout structure with shaft shoulders and retaining rings, ensuring the stem will not be blown out by media pressure under abnormal internal pressure conditions to guarantee operational safety.
Emergency Manual Operation:The pneumatic actuator is equipped with a side-mounted manual device or a top handwheel, allowing emergency manual operation in case of air supply failure to maintain system controllability.
Optional Limit Switches and Positioners:Mechanical or inductive limit switches, solenoid valves and positioners (4–20mA signal) can be fitted to realize valve position feedback and precise regulating control.
Compact Design:The four-way structure integrates multiple flow functions in one unit, reducing the number of pipeline valves, saving installation space and lowering system complexity.
Size Range: 1/2″ to 12″ (DN15 to DN300)
Pressure Class: Class 150 to Class 600 (PN20 to PN100)
Temperature Range: -29℃ to +425℃
Valve Body: ASTM A105, ASTM A350 LF2 (low temperature type), ASTM A182 F304/F316 (stainless steel type)
Ball: ASTM A105 + ENP (electroless nickel plating), ASTM A182 F304/F316, F316 + STL hardfacing
Stem: ASTM A182 F6a, F304, F316, 17-4PH
Seat Seal: PTFE, RPTFE, NYLON, PEEK, metal hard seal (STL / nickel-based alloy)
O-Rings: NBR, VITON, EPDM, low temperature HNBR
Packing: Flexible graphite, PTFE
End Connection: Flanged (RF/RTJ, ASME B16.5), Threaded (NPT/BSP), Socket Weld (SW), Butt Weld (BW)
Operation: Pneumatic (double-acting / single-acting spring return), electric, hydraulic, manual (handwheel / lever)
Design Standards: API 6D, API 608, ASME B16.34
Test Standards: API 598, API 6D
Oil and Gas Industry:Used for multi-line switching in oil and gas field exploitation, gathering, transportation and refining systems, realizing media distribution, confluence and flow direction conversion, and simplifying station piping design.
Chemical and Petrochemical Industry:Suitable for multi-path switching control of feeding and discharging of reaction kettles, flow direction conversion in catalyst regeneration systems, and distribution control of multi-product pipelines.
Power Industry:Applied for multi-path switching of cooling water systems and lubricating oil systems, as well as alternate operation control of standby pump units.
Shipbuilding and Offshore Engineering:Used for multi-path distribution and conversion control of ballast water systems, bilge water systems and fuel oil systems.
Gas Distribution Systems:Applied for pipe network distribution of industrial gases (nitrogen, oxygen, hydrogen, natural gas) and multi-path filling control in filling stations.
General Industrial Applications:Suitable for flow direction switching, distribution, confluence and mixing control of media such as water, oil, gas and chemicals.
Multi-Function in One Valve, System Simplification:A single four-way valve replaces multiple two-way valves and complex pipelines, reducing the number of valves by 30%–50%, lowering piping system complexity and leakage points.
Fast Automatic Switching:The pneumatic actuator features rapid response (opening and closing time 0.5–3 seconds). Combined with the control system, it realizes remote automatic flow direction switching and improves production efficiency.
Safety and Reliability:The spring return type automatically returns to a safe position in case of air or power failure. Fire-safe, anti-static and anti-blowout designs ensure safe operation under hazardous conditions.
Precise Flow Control:The accurately designed L-port / T-port flow passages ensure no mixing during flow switching, meeting strict process requirements.
Wide Applicability:A full selection of materials, sealing types, pressure classes and actuators covers a wide range of working conditions from low to high temperature and low to high pressure.
Low Maintenance Cost:The forged structure is sturdy and durable. The replaceable seat design facilitates on-line maintenance. The pneumatic actuator features a simple structure and low failure rate.
Compliance with International Standards:Designed and manufactured in strict accordance with international standards such as API, ASME and ISO to meet global project procurement requirements, with complete material certifications and test reports provided.
