Stainless Steel Double Disc Wafer Type Non-Return Valve | Zero-Leakage Backflow Prevention

Product Features:

Stainless Steel Double Disc Wafer Type Non-Return Valve | Zero-Leakage Backflow Prevention

Tianjin Worlds Valve Co., Ltd. – ISO 9001 Certified Manufacturer

BFHV01-TA02-Operation and Maintenance Manual DOWNLOAD

Key Technical Advantages:

1. Double Disc Design for Rapid Response

• Dual Spring-Assisted Discs: Close instantly upon flow reversal, preventing water hammer and minimizing pressure surge.  

• Low Cracking Pressure: Opens at 0.5 psi, reducing energy loss and ensuring efficient flow.  



2. Full 316L Stainless Steel Construction  

• Corrosion Resistance: Withstands corrosive fluids, including chlorinated water, mild acids, and alkalis.  

• Durability: Excellent mechanical strength for pressures up to **PN16** and temperatures from -29°C to 200°C.    

3. Wafer-Type Compact Design

• Space and Weight Savings: 50% lighter and more compact than swing check valves, simplifying installation in tight spaces.  

• ANSI/DIN Flange Compatibility: Fits between standard flanges without additional hardware.  

4. Zero Leakage and Silent Operation  

• Bubble-Tight Sealing: Achieves API 598 leakage standards for reliable backflow prevention.  

• Noise Reduction: Spring-assisted disc closure eliminates valve slam and operational noise.  

5. Low Maintenance and Long Service Life

• No Lubrication Required: Self-cleaning discs reduce wear and extend service life.  

• Easy Inspection: Modular design allows for quick maintenance without removing the valve from the pipeline.

Technical Specifications

Component	Specification
Body	Cast Iron  Ductile Iron  Carbon Steel  Stainless Steel
Disc	Ductile Iron  Carbon Steel Stainless Steel
Lining	EPDM NBR(BUNA-N) HEPDM FKM(VITON) CR(NEOPRENE)  NR(Natural Rubber)  CSM(HYPALON)
Size	DN50-DN600
Flange Standards	PN10 PN16 150LB JIS10K AS”D””E”
Temperature Range	-15°C to 120°C (5°F to 250°F)
Testing	API598
Face to Face	API594 125LB
Certifications	ISO9001, ACS, UKCA, CE, ABS and so on.

Industry Applications  

Water Treatment: Pump discharge lines, filtration systems, and potable water networks.  

HVAC: Chilled and heating water circuits, condenser lines.  

Oil & Gas: Pipeline backflow prevention, fuel transfer systems.  

Chemical Processing: Corrosive fluid handling with leak-free security.  

Marine: Seawater cooling and ballast systems.  

Beyond Compliance: Manufacturer Advantages

1. Expertise in OEM/ODM Services  

As your trusted dual plate check valve manufacturer, we specialize in bespoke solutions tailored to your exact needs. We ensure seamless execution throughout the entire process, from initial design to final delivery.  

2. Global Reach with Local Support

Worldwide delivery & dedicated local support.  

3. Competitive Pricing  

Competitive pricing on quality valves through optimized production & scale.  

4. Comprehensive After-Sales Service

Expert technical support, installation guidance & maintenance services.

Conclusion:

Welcome to purchase our Stainless Steel Double Disc Wafer Type Non-Return Valve. If you have any procurement needs, OEM/ODM or custom requirements, please contact our professional sales manager:  dekai@worldsvalve.com