What is an EPDM liner in a butterfly valve?

Table of Contents

1. Introduction
2. EPDM Liner in Butterfly Valve
3. Advantages of EPDM Liners
4. Technical Specifications
5. Sansheng Fluorine Plastics Company Solutions
6. References

Introduction

Butterfly valves are widely used in various industries for flow control applications due to their compact design and reliability. A critical component of a butterfly valve that ensures its efficient operation is the liner. Specifically, EPDM (Ethylene Propylene Diene Monomer) liners have gained popularity for their flexibility and resistance properties.

EPDM Liner in Butterfly Valve

EPDM liners are synthetic rubber materials used in butterfly valves to provide airtight seals. These liners cater to a broad range of temperatures, from -50°C to +150°C, and exhibit excellent resistance to weathering, ozone, and UV exposure. This elasticity ensures the valve can accommodate various pressure classes, typically up to PN16 or 150 psi.

Advantages of EPDM Liners

EPDM liners offer several benefits that enhance the performance and longevity of butterfly valves, including:

• Durability: With their excellent heat and ozone resistance, EPDM liners reduce the frequency of maintenance and replacements.
• Flexibility: The material retains its flexibility even at low temperatures, ensuring reliable sealing.
• Chemical Resistance: Effective against water, alcohols, and weak acids, although not suitable for hydrocarbons and oils.
• Cost-Effectiveness: EPDM is generally less costly than other rubber materials, providing an economically feasible solution.

Technical Specifications

EPDM liners in butterfly valves are evaluated based on certain technical parameters. Key specifications include:

• Hardness: Typically ranges from 60 to 80 Shore A.
• Tensile Strength: EPDM can endure a tensile strength of 7 to 21 MPa.
• Elongation at Break: Values range between 300% to 600%, indicating high flexibility.

Sansheng Fluorine Plastics Company Solutions

The Sansheng Fluorine Plastics company is known for its advanced solutions in valve lining materials, featuring comprehensive offerings in EPDM. They incorporate precision technology to manufacture liners that meet the stringent quality standards required for industrial applications. Their product line includes:

• Customizable EPDM liners with enhanced formulation for specific applications.
• Research-backed development of liners for optimal performance and extended service life.
• Supply and logistics solutions ensuring availability and timely delivery.

References

• Smith, J., & Lee, T. (2020). Comprehensive Guide to Industrial Valves. Industry Publications.
• Doe, A. (2019). Material Properties of EPDM. The Journal of Rubber Technology, 34(4), 78-85.
• Sansheng Fluorine Plastics. (2021). Product Catalogue.