Hydraflex offers a range of washers suitable for use with braided hoses. These washers come in various types including EPDM rubber washers, Fibre washers, and Kevlar washers, each designed to cater to different applications and conditions

Construction and Compliance:

  • EPDM Washers: Constructed from Ethylene Propylene Diene M-Class (EPDM) rubber, these washers exhibit excellent mechanical properties and are suitable for use with water up to 110°C. They offer good resistance to oxide, weather agents, ultraviolet rays, and ozone, making them an outstanding gasket for hose fittings​.
  • Fibre Washers: These are manufactured from cellulose and synthetic fibres bonded with NBR (Nitrile Butadiene Rubber) and are asbestos-free. They are particularly suitable for thermo-hydraulic applications where low to medium pressure is in operation​.
  • Kevlar Washers: WRAS approved Kevlar washers are made from a non-asbestos jointing sheet composed of Kevlar aramid fibres and high-temperature resistance mineral fillers, bonded with high ACN content NBR elastomer. This construction provides excellent chemical stability and resistance​

Applications:

  • EPDM Washers: Ideal for non-aggressive applications and suited for use with water.
  • Fibre Washers: Suitable for use with water, oils, alcohols, and glycols, but not recommended for steam, chemical applications, or high temperatures​
  • Kevlar Washers: Suitable for a wide variety of applications including water, gases, hydrocarbons, solvents, low-pressure steam, mild acids, and alkalis. They find use in industries such as food, public utilities, water treatment plants, chemical plants, and the oil industry​

Benefits and Features:

  • Temperature Resistance: The washers are designed to withstand various temperature ranges depending on the material. EPDM washers have a working temperature range of -40°C to +110°C, Fibre washers can withstand up to 140°C, and Kevlar washers can endure temperatures up to 350°C​.
  • Pressure Resistance: Fibre washers are capable of handling a maximum operating pressure of 40 Bar, while Kevlar washers can handle up to 100 Bar​.
  • Chemical and Physical Behaviour: The washers exhibit good resistance to various elements depending on their construction material, including resistance to water, hot air, steam, oils, alcohols, and glycols​.

Availability and Customisation:

Hydraflex provides a range of standard sizes for these washers, and bespoke solutions can be created to meet specific requirements. For any additional information or customisation inquiries, it's recommended to get in touch with Hydraflex's team through their contact page on our website.

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