CHINA J-VALVES Offers Various High-quality I ndustrial Ball Valves
J-VALVES, a distinguished professional ball valve manufacturer rooted in China, takes pride in its extensive product portfolio. Our offerings span a wide range, including trunnion-mounted ball valves, floating ball valves, high-temperature ball valves, high-pressure ball valves, metal-sealed ball valves, ultra-low temperature ball valves, DBB ball valves, Three-way And Four-way Ball Valve, and fully welded ball valves. Each product is a testament to our commitment to precision engineering and reliable performance. Meticulously crafted, they are designed to not only meet but exceed the most stringent industrial demands, ensuring stable operation even under extreme conditions. This enables us to provide our clients with high-value services and makes our valves widely sought-after in industries.
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Pressure Rating: 150LB to 2500LB (PN20 to PN420)
Temperature Range: -46℃ to +200℃(it varies depending on the specific materialand working conditions)
Materials:
Valve Body: Forged Steel (e.g., ASTM A105), Stainless Steel (e.g., 304, 316), Alloy Steel, Duplex Steel
Valve Ball: Hardened Stainless Steel or Alloy Steel
Valve Stem: Stainless Steel or Alloy Steel
Sealing Material: PTFE, RPTFE, Metal Seat
Connection Type: Flanged Connection (RF), Butt Weld Connection (BW)
Operation Mode: Manual (Handwheel Operation), Pneumatic, Electric
Design Standards: API 6D, ASME B16.34
Testing Standard: API 598
End-to-End Dimensions: Compliant with ASME B16.10 Standard
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J-VALVES
316 Stainless Steel Material: The valve body, valve ball and valve stem are all made of 316 stainless steel, which features high strength and excellent corrosion resistance, enabling long-term stable operation in harsh chemical environments.
Trunnion Mounted Design: The ball is fixed on the valve body by trunnions, providing additional support to ensure smooth operation under high-pressure conditions and reduce the load on the valve seat.
Superior Sealing Performance: Equipped with high-performance elastic valve seats, it delivers outstanding bidirectional sealing performance and ensures the valve maintains tight sealing under various working conditions.
Fire-Safe Design: Compliant with API 607 standard, the valve can still retain its sealing performance in the event of a fire, preventing medium leakage.
Anti-Static Device: Built-in anti-static device effectively prevents static accumulation and reduces the risks of fire and explosion.
Stem Blowout Prevention Design: The valve stem adopts a blowout-proof design to ensure operational safety and prevent the stem from being blown out due to medium pressure.
Compact Design: The overall structure is compact, saving installation space, and it is especially suitable for applications with limited space.
Flanged Connection (RF): Flanged connection is adopted to ensure reliable installation and excellent sealing performance, facilitating seamless integration with existing pipeline systems.
2-3 piece body
Full andreduced bore trunnion mounted
Double block and bleed
Single or double piston effect design anti-blow out stem
Anti-static device
Firesafe to AP1-607/6FA/IS0 10497 springloaded seats
Sealant in jection on request NACE MR-01-75
J-VALVESSPE can supply a range ofseat types and configurationsto meet specific process needs:
J-VALVES trunnion mounted ball valves standard seat ringsare soft-seated by the use of athermoplastic or elastomeric or Meta
Seats-Tungsten /Chrome carbide /ENP
Single Piston (SPE) , Double Piston effect (DPE) and Combination (SPE x DPE) seats are available.
| Seat Design | Single piston effect (SPE) | Double piston effect(DPE)-DIB 1 | Combined DIB 2 |
| Bi-directional sealing | Yes | Yes | Yes |
| Body-Cavity Self relieving | Yes | No | Yes |
| Double Barrier | No | Yes | Yes (preferred direction only) |
Emergency Seat Injection
Emergency grease in jection fitting forseat rings are standard for6" and larger valves and as option on sizes 2"-4".
An eedle valve, complete with non return check valve is screwed in the bodyand connected to theseatrings.
The emergency sealantinjection can temporarily solve leakage problems, seatsshall be re paired at the first opportunity.
For valves smaller than 6" seat sealant in jection fitting can beprovided in the body cavity
Body Vent & Drain
All J-VALVES SPE TMBV are complete with ascrewed NPT Plug, located in thelower side of the body completedraining of the body cavity.
For valves up to size 4"the drain and vent are combined in oneport.
Extended Stem
Extended stem is supplied for Underground in stalla tion.
The stem seals arelocated inthe body Gland Plate.
The stem extension isnot affected by eventual stem seal failure.
Double Piston Effect
Extended bonnets are available for Cryogenic or high temperature service or special applications requiring this facility features.
Types of Trunnion Ball Valves Available
2PC Flanged Trunnion Mounted Ball Valves, 3PC Side-Entry Flanged Trunnion Mounted Ball Valves, Metal-Seated Trunnion Mounted Ball Valves, Top-Entry Flanged Trunnion Mounted Ball Valves, High-Temperature Trunnion Mounted Ball Valves, High-Pressure Trunnion Mounted Ball Valves, Forged Trunnion Mounted Ball Valves, Cast Trunnion Mounted Ball Valves, Full Bore Trunnion Mounted Ball Valves, Cryogenic Trunnion Mounted Ball Valves
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