The Engineered Materials Group of Parker Hannifin has developed a new, robust EPDM sealing material named EJ820, specifically designed for drinking water applications. Thanks to gaining all relevant national and international drinking water approvals, the material can be utilized worldwide. Due to its material properties and compatibility profile, EJ820 is also perfectly suited for other applications, such as in heating and solar thermal energy systems, the chemical industry, and more.
In addition to drinking water, hot water, and hot steam at up to 180 °C, the new material’s robustness and properties mean it is also the ideal choice for use in many organic and inorganic acids, detergents, sodium, and caustic potash, in polar solvents, silicone oils and greases, and in hydraulic fluids based on phosphoric acid esters (HFD-R).
The product range extends from conventional O-rings (imperial and metric dimensions up to several meters in diameter) to membranes and custom components engineered according to customer drawings. Additionally, EJ820 can be utilized in rubber-metal composites.
Seals made from EJ820 can be used in valves, fittings, and piping systems, as radial shaft seals in feed pumps, or for sealing sensors in drinking water operations. Thanks to its outstanding mechanical properties, wide chemical and thermal resistance, excellent permanent elasticity and enhanced resistance against autoxidation, the toxicologically harmless compound EJ820 delivers the reliability and long service life needed in most applications. Domestic water piping systems, for instance, are expected to last a minimum of 30 years after installation.