Ductile Iron Valve Disc Vulcanized Rubber Seat Butterfly Valve | Corrosion-Resistant Flow Control

Introduction:

Ductile Iron Valve Disc Vulcanized Rubber Seat Butterfly Valve | Corrosion-Resistant Flow Control  

Tianjin Worlds Valve Co., Ltd. – ISO 9001 & WRAS-Certified Industrial Valve Solutions  

CBF01-TF01---Operation and Maintenance ManualDOWNLOAD

Product Features:

1. Vulcanized Rubber-to-Disc Bonding  

Permanent chemical fusion between EPDM/NBR elastomer and ductile iron disc prevents seat detachment during thermal cycling (-20°C to 120°C).  

Eliminates compression-set failure common in press-fit seats, extending service life to 50,000+ cycles.

2. Optimal Flow Efficiency

Aerodynamic ductile iron disc design reduces pressure drop by 25% vs. traditional valves.  

Full port opening minimizes turbulence in high-flow systems.

3. Triple-Layer Corrosion Defense  

Body: 300µm fusion-bonded epoxy coating for chlorine/UV resistance.  

Disc: Zinc-nickel plating + epoxy topcoat prevents pitting in pH 5-12 environments.  

Stem: 316L SS with PTFE bushings.

4. Zero-Maintenance Design  

Self-lubricating RPTFE bearings and triple-sealed stem eliminate greasing needs.

Why Partner with Tianjin Worlds Valve?

1. Expertise in OEM/ODM Services  

 As a trusted ISO 9001-certified manufacturer, we specialize in custom OEM/ODM designs, ensuring valves meet your exact specifications while adhering to global certifications.

2. High Performance

  Vulcanized valve seat has very high corrosion resistance and is generally used to control some corrosive fluids with strong acidity and alkalinity.  

3. Global Compliance

Pre-certified for EU, UK, and Asian markets.

4. Customization  

Optional gearbox position indicators, locking devices, or extended stems.

Main Material:

Name	Material
Body	Cast Iron  Ductile Iron  Carbon Steel  Stainless Steel  AL-Bronze
Disc	Ductile Iron  Carbon Steel Stainless Steel  AL-Bronze
Shaft	Stainless Steel  Monel K500
Seat	BUNA  NBR  EPDM  VITON  PTFE  TEFLON  HEPDM  Neoprene  Hypalon Natural rubber

Industry-Specific Performance

Water Treatment: NSF 61-certified EPDM seats for chlorine dosing systems.  

HVAC: Low-torque operation in chilled water circuits (-20°C service).  

Marine: Saltwater-resistant coating for ballast water control (DNV-GL option).  

Fire Protection: FM-approved resilience in sprinkler supply lines.  

Conclusion:

Elevate your industrial systems with Tianjin Worlds Valve’s advanced Ductile Iron Valve Disc Vulcanized Rubber Seat Butterfly Valves. Source CE,UKCA,WRAS,ACS and ISO 9001 certified，Competitive pricing, fast delivery—request a quote today!