BFHV01-TA02
OEM | ODM | WDS
| Availability: | |
|---|---|
| Quantity: | |
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

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.
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.
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.
Bubble-Tight Sealing: Achieves API 598 leakage standards for reliable backflow prevention.
Noise Reduction: Spring-assisted disc closure eliminates valve slam and operational noise.
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.

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. |

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.
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.
Worldwide delivery & dedicated local support.
Competitive pricing on quality valves through optimized production & scale.
Expert technical support, installation guidance & maintenance services.

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
This article introduces a 14-inch wafer butterfly valve featuring a ductile iron body, a replaceable EPDM seat for easy field maintenance, a CF8 stainless steel disc, and a turbo gear operator – rated at PN16. As an LRQA-certified ISO 9001:2015 OEM/ODM manufacturer with over 19 years of export experience, Tianjin Worlds Valve Co., Ltd. offers fully customizable solutions to meet specific project requirements.
This article introduces a 10-inch PTFE lined lug butterfly valve featuring a ductile iron body, a PTFE seat, and a PTFE-encapsulated ductile iron disc–rated at Class 150. With full PTFE encapsulation ensuring zero metal contact and bubble-tight sealing, this valve is ideal for aggressive chemical, pharmaceutical, and semiconductor applications. As an LRQA-certified ISO 9001:2015 OEM/ODM manufacturer with over 19 years of export experience, Tianjin Worlds Valve Co., Ltd. offers fully customizable solutions to meet specific project requirements.
Double flanged butterfly valve for heavy-duty systems: ductile iron body, CF8M disc, vulcanized EPDM seat for zero leakage and metal isolation. Electric actuator (on-off/modulating with feedback), PN16, fully customizable. Certified ISO 9001, CE, UKCA, WRAS, ACS; 100% pressure tested with traceable certs. Factory direct, 15–40 days lead time.
Wafer butterfly valve with ductile iron body, CF8 disc, and EPDM seat. Reliable bubble-tight shut-off for water, HVAC, and industrial systems. OEM/ODM available.
This guide covers everything you need to know about lug butterfly valves—why they outperform wafer valves in dead-end service and isolated maintenance, how material selection (ductile iron, stainless steel, carbon steel) impacts performance, and key installation and maintenance best practices. Learn the lug vs wafer comparison, common selection mistakes to avoid, and how to choose the right body material, seat, and actuator for water treatment, chemical processing, oil & gas, and HVAC applications. Backed by ISO 9001 certification and full OEM customization with 19+ years of export experience.
Home | About Us | Products | Solutions | Certifications | Contact Us
No.25,Fuhui Road,Beizhakou Industrial Zone,Jinnan District ,Tianjin,China
Copyright By © Tianjin Worlds Valve Co.,Ltd.