PPE’s Taste and Taint Free Elastomer Seal

Taste and taint free PPE sealing elastomer for potable water

Taste and taint free, the new sealing material for potable water from Precision Polymer Engineering (PPE), a unit of IDEX Corp., meets the Water Regulations Advisory Scheme (WRAS) BS 6920 taint taste requirements for cold and hot water use (up to 85°C). Called E73D, the peroxide-cured Ethylene Propylene Terpolymer (EPDM) elastomer is suitable for use in all types of potable water applications also requiring KTW D1/D2, DVGW W-270 D1/D2, NSF/ ANSI 61, ACS XP P 41-250 drinking water regulation compliance.

E73D offers outstanding resistance to water, steam and cleaning agents between -30°C (+22°F) and +150°C (+302°F). It is available in any sized O-ring (fully moulded up to 2.5m/8ft internal diameter), gaskets, hygienic and sanitary couplings, pipe connectors, valves, as well as custom seals for pumps, valves, metering equipment and water fittings.

“Many existing WRAS elastomers whose approvals have expired are failing the taste and taint test introduced with BS6920, and so their approval is not renewed. The E73D EPDM material meets the taste and taint WRAS requirements together with major European and US water regulations and is approved until July 2012,” says David Holt, new business director, PPE.

In addition to E73D, PPE also supplies WRAS-compliant, V70Q fluoroelastomer for potable water applications and FDA, USP Class VI & 3A compliant materials for food and pharmaceutical applications.

Precision Polymer Engineering
Tel: 01254 295400
Website: www.prepol.com

Published in Valve User Magazine Issue 17


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