The XITA PVDF True Union Check Valve is the ultimate solution for ensuring one-way flow and preventing dangerous backflow in aggressive industrial piping systems. Unlike standard check valves, its True Union design allows for quick, safe, and tool-free inline inspection or replacement without cutting the pipe.
Combining a corrosion-resistant Virgin PVDF body and spring/disc assembly with a robust, leak-proof union nut connection, it ensures automatic and reliable sealing against reverse flow under varying pressures. It is the ideal choice for chemical processing, high-purity semiconductor lines, and pharmaceutical transfer systems requiring a maintenance-friendly, long-life check valve.
| Key Features & Technical Advantages
✔Exceptional Chemical Resistance: The PVDF True Union Check Valve body and disc provide outstanding resistance to a wide range of strong acids, alkalis, halogens, and oxidizers, ensuring durability in the most aggressive fluid systems. ✔Maintenance-Friendly True Union Design: Its True Union construction allows for quick, inline inspection, cleaning, or replacement without the need to cut the pipe, dramatically reducing downtime and maintenance costs. ✔Reliable, Automatic Backflow Prevention: Features a spring-assisted closure that ensures fast, positive sealing against reverse flow, preventing dangerous media mixing and protecting upstream equipment. ✔High Purity & Zero Contamination: Made from virgin, inert PVDF, the valve guarantees no leaching or contamination of sensitive process media, making it ideal for ultra-pure applications in semiconductor and pharmaceutical industries. ✔Robust & Leak-Proof Performance: Engineered with a robust union nut connection and precision-machined components, it delivers a leak-proof seal under varying system pressures for long-term, reliable operation. ✔Superior Lifetime Value: While the initial investment is higher than standard valves, its combination of extreme chemical resistance, minimal maintenance needs, and long service life offers a far more favorable Total Cost of Ownership (TCO) in corrosive service compared to metal alloy alternatives. |
General Specifications
Item Name | PVDF True Union Check Valve |
Material | PVDF |
Color | White |
Connection | Flange End |
Working Pressure | 150PSI 1.0 MPa
100PSI 0.6MPa |
Certification | Socket |
Origin | Changzhou Jiangsu |
Typical Applications
 |  |  |
Pharmaceutical & Bioengineering | Specialty Chemical & Electroplating | Environmental Protection & Wet Electronic Chemicals |
Used in WFI, CIP/SIP, and sterile transfer lines to guarantee one-way flow and prevent cross-contamination. The True Union design allows for quick, aseptic maintenance. | Protects pumps and reactors from backflow in systems handling strong acids, alkalis, and organic solvents. | Ensures safe, leak-proof operation in corrosive wastewater treatment and high-purity wet electronic chemical distribution systems. |
Why Choose XITA?
As a premier manufacturer of PVDF True Union Check Valve, XITA controls every step from raw material sourcing to final assembly.
✅ Factory Direct Savings: Our 3000sqm facility allows us to offer competitive pricing by eliminating middleman markups.
✅ 100% Torque Tested: Every unit undergoes strict torque matching tests to prevent actuator burnout.
✅ Rapid Delivery: With a large stock of PVDF bodies and actuators, we can ship standard orders within 7 days.
FAQ
Q: How do you protect the actuator from acid fumes?
A: We utilize a double-sealing structure (O-rings + PTFE seat) to strictly isolate the medium, preventing corrosive vapors from entering the actuator housing.
Q: Can I integrate this valve with my PLC system?
A: Yes. Our valves come with standard wiring diagrams and support feedback signals, making integration into automated PLC systems seamless.
Q: What is the cycle life of the electric actuator?
A: The actuator is designed for high-frequency use, tested for over 50,000 cycles under rated load conditions.
