Hard Back Rubber Seat & SS Disc Butterfly Valve | Wafer Butterfly Valve Supplier

Introduction：

Hard Back Rubber Seat & SS Disc Butterfly Valve | Wafer Butterfly Valve Supplier

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

CBF02-TA01  Operation and Maintenance Manual DOWNLOAD

Technical Features and Design Advantages:

1. Reinforced Hard-Back EPDM Seat

• Enhanced Seat Integrity: The seat features a robust, hard-backing layer that prevents deformation under pressure, ensuring consistent bubble-tight sealing (EN 12266-1 Class A) and extending service life.

• Excellent Sealing Resilience: The EPDM sealing surface provides superior elasticity for reliable shut-off against water, air, and many mild chemicals.

2. Stainless Steel (SS) Disc for Longevity

• Corrosion-Resistant Core: The CF8M (316 Stainless Steel) disc provides strong resistance to rust and corrosion, making it suitable for humid, water-based, and mildly corrosive environments.

• Durable and Lightweight: Offers a strong, long-lasting flow control element without the excessive weight of cast iron.

3. Compact and Efficient Wafer Design

• Space-Saving Installation: The wafer body installs quickly between two pipeline flanges, saving significant space and weight compared to lug-style valves.

• Cost-Effective Solution: Simplifies installation and reduces total project costs for general industrial and building service applications.

4. Reliable and Simple Operation

• Smooth Manual Actuation: Designed for easy operation with a standard hand lever, providing clear visual indication of open/closed positions.

• Low Maintenance: The combination of a durable SS disc and a robust rubber seat minimizes wear and maintenance needs in standard service.

Standard:

Parameter	Specification
Model	CBF02-TA01
Sizes	DN50-DN1200
Pressure Class	PN1.0/1.6MPa
Design	EN593  BS5155  EN1092  ISO5211
Testing	EN12266-1  ISO5208
TOP Flange	ISO5211 (according to customer’s needs)
Face to Face	DIN558-1 DIN3202 ISO5752 BS5155

Typical Applications:

• Water Supply & Distribution: Potable water lines, pumping stations.

• HVAC Systems: Chilled and cooling water circuits.

• General Industrial Services: Cooling water, process water, compressed air.

• Building Services: Plumbing, fire protection (where specification allows).

Why Choose This Valve?:

• Optimized Seal Design: The hard-back EPDM seat offers superior sealing reliability and lifespan compared to standard rubber seats.  

• Corrosion-Resistant Disc: The stainless steel disc ensures the valve's core component withstands demanding environments.  

• Supplier Reliability: We provide consistent quality and support as your dedicated wafer butterfly valve supplier.  

• Certified Quality: Manufacturing under ISO 9001 with CE and UKCA marks guarantees compliance and performance.

Conclusion：

Designed for quick manual operation and space-efficient installation, this wafer type butterfly valve delivers reliable performance for water treatment, HVAC, and industrial applications requiring efficient flow control.

Meeting your specific needs: dekai@worldsvalve.com