Easy-Maintenance Wafer Butterfly Valve: Replaceable EPDM Seat & DI Disc (Hand Lever Operated)

Introduction：

Easy-Maintenance Wafer Butterfly Valve: Replaceable EPDM Seat & DI Disc (Hand Lever Operated)

Tianjin Worlds Valve Co., Ltd. – Your OEM Partner for Cost-Effective, Durable Flow Control

CBF02-TA03-Operation and Maintenance Manual DOWNLOAD

Key Features & Technical Advantages:

1. Revolutionary Replaceable EPDM Seat System

• Dramatically Reduces Downtime: The seat can be replaced quickly and easily without specialized tools or disassembling the valve body from the pipeline in many cases. This cuts maintenance hours and costs.

• Superior Sealing & Resilience: The EPDM (Ethylene Propylene Diene Monomer) rubber seat provides excellent bubble-tight sealing (EN 12266-1 Class A) and is resilient to aging, ozone, and water-based fluids.

• Extends Valve Service Life: When the seat wears, simply replace it—not the entire valve. This sustainable design offers a significantly lower lifetime cost

2. Robust Ductile Iron (DI) Disc for Durability

• High Strength & Impact Resistance: The DI disc (Grade EN-GJS-500-7) offers superior tensile strength and durability compared to standard cast iron, ensuring reliable performance and resistance to water hammer.

• Cost-Effective Performance: Provides an optimal balance of mechanical strength and cost, making it ideal for a wide range of general industrial applications.

3. Instant Manual Control with Hand Lever

• Quick 90° Operation: The ergonomic hand lever allows for rapid open/close control with a simple quarter-turn.

• Clear Visual Indication: Integrated position indicators (Open/Closed) provide immediate visual confirmation of valve status for operational safety.

• Low Operating Torque: The efficient disc design minimizes friction, ensuring smooth and easy lever operation.

4. Space-Saving Wafer Design

• Compact & Lightweight: The wafer body installs directly between ANSI or DIN flanges, offering a lighter and more space-efficient solution than lug-type valves.

• Simplified Installation: Reduces installation time and hardware requirements, lowering overall project costs.

Standard:

Parameter	Specification
Model	CBF02-TA03
Sizes	DN50-DN1200
Pressure Class	PN6/10/16/150LB/JIS10K/AS “D”/ “E”
Design	EN593  BS5155  EN1092  ISO5211
Testing	ISO5208  EN12266-1
TOP Flange	ISO5211 (according to customer’s needs)
Face to Face	EN558-1 DIN3202 ISO5752 BS5155
Standard	ASME B16.34
Body	Ductile Iron
Disc	DI
Seat	EPDM
Stem	SS431

Competitive Advantages & Value Proposition：  

Unbeatable Maintenance Savings: The replaceable seat design drastically cuts downtime and parts costs over the valve's lifetime.  

• Proven Durability: The combination of a ductile iron disc and epoxy-coated body ensures long-term, reliable service.  

• Instant Manual Simplicity: The hand lever provides fast, fail-safe operation without need for external power.  

• Direct OEM Value: We offer competitive pricing, reliable lead times, and flexibility for custom branding or minor modifications.  

• Compliant & Certified: Manufactured under an ISO 9001 quality system and compliant with key international directives (CE, UKCA).

Target Applications:

This valve is the workhorse solution for numerous industries requiring reliable and maintainable isolation:

• Water & Wastewater Treatment: Pump isolation, filtration systems, general water distribution.

• HVAC & Building Services: Chilled water, cooling towers, heating systems, and air handling units.

• General Industrial Plant: Cooling water lines, compressed air systems, process water, and utility services.

• Irrigation & Agriculture: Mainline and zone control for field and landscape irrigation.

• Fire Protection Systems: Sprinkler line isolation (where specification permits).

Conclusion:

Combining ductile iron reliability with stainless steel durability and rubber seat performance, this wafer butterfly valve delivers exceptional value for water treatment, HVAC, and industrial applications requiring cost-effective flow control solutions.