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Shanghai Quanbao Electronic Materials Technology Co., Ltd.
Based in Shanghai, China, we specialize in precision fluid control solutions for critical industries. Our Pneumatic Stainless Steel Diaphragm Valve with VCR Connection delivers exceptional sealing performance and contamination-free operation, specifically engineered for applications requiring ultra-high purity standards.
This normally closed valve ensures automatic shutoff during system failures, providing fail-safe protection for sensitive processes in semiconductor fabrication, pharmaceutical production, and analytical instrumentation.
Core Technical Specifications:
- Pneumatic actuation enables rapid response times under 0.5 seconds
- Stainless steel construction resists corrosion from aggressive media
- VCR fittings maintain vacuum integrity down to 10-9 mbar·l/s
- Diaphragm isolation prevents fluid contact with actuator components
- Normally closed configuration defaults to safe position during power loss
| Parameter | Specification |
|---|---|
| Body Material | 316L Stainless Steel |
| Pressure Rating | 150 psi (10 bar) |
| Temperature Range | -20°C to 150°C |
| Actuation Pressure | 40-100 psi |
| Leak Rate | <1x10-9 atm·cc/sec He |
Operational Advantages:
- Zero particulate generation meets Class 1 cleanroom requirements
- Replaceable diaphragm extends service life beyond 1 million cycles
- Dead-space-free design minimizes fluid retention and cross-contamination
- Compatible with CIP/SIP processes for sterilization
With over a decade of manufacturing expertise in Shanghai, our facility implements rigorous quality protocols validated by major semiconductor equipment manufacturers. Each valve undergoes helium leak testing and particle counting before shipment. Global clients rely on our responsive technical support and flexible customization options – contact us today for volume pricing or application-specific configurations.
Frequently Asked Questions
Q: What media compatibility does this valve offer?
A: Compatible with acids, solvents, and ultra-pure water when configured with appropriate diaphragm materials (PTFE, EPDM, or FKM available).
Q: Are manual override options available?
A: Yes, pneumatic actuators can be equipped with manual override levers as an optional feature.
Q: What VCR sizes are standard?
A: Commonly available in 1/4" to 1" sizes; custom dimensions can be accommodated.
Q: How does the normally closed function operate?
A: Spring pressure maintains closure without air supply; pneumatic pressure opens the valve against spring force.
Q: What is the diaphragm replacement interval?
A: Service life depends on operating conditions; typical replacement cycles range from 6-24 months.
Q: Can this valve handle slurry fluids?
A: Not recommended; optimized for clean gases and liquids with <50 micron particulates.
Q: What documentation accompanies delivery?
A: Each shipment includes material certifications, test reports, and installation guidelines.
Q: Do you provide sample units for testing?
A: Evaluation samples are available for qualified clients with project specifications.
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