---
title: elmor® Laboratories Inc. - News Room - Poppet Seals for Check Valves
description: Pelmor® Laboratories, is a full service, vertically integrated, custom manufacturer of all-rubber and rubber-to-metal bonded, molded and extruded parts.
---

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# News Room

**Poppet Seals for Check Valves**

Poppet seals, custom molded from various high performance elastomeric compounds, are manufactured by Pelmor® Laboratories, Inc. for use in check valves for pressure relief and nuclear plant piping system applications.

Excellent rubber-to-metal bonding, advanced machining capabilities for trimming molded parts, and pre-forming to 0.5 grams per piece to maximize manufacturing efficiencies, are among the highly specialized capabilities that Pelmor® brings to the production of these poppet seals.

Various state-of-the-art elastomers, such as Viton®, Aflas®, Nitrile, and EPDM, are bonded to stainless steel components to form a strong sealing surface. These poppets can withstand temperature extremes of -50° to +450° F; resist attack by over 750 corrosive chemicals and other liquids; and exhibit excellent abrasion resistance. Other properties include: tensile strength ranges of 2000 to 3250 psi; Shore A durometer of 50 to 90; and 100% to 685% elongation.

For additional information, contact Pelmor® Laboratories, Inc., 401 Lafayette Street, Newtown, PA 18940-0309; Phone: 800-772-6969 or 215-968-3334; Fax: 215-968-3676; E mail: sales@pelmor.com.

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© 2016 Pelmor® Laboratories, Inc. • 401 Lafayette Street • Newtown, PA 18940 USA  
U.S. and Canada: 1-800-772-6969 • Worldwide: 215-968-3334 • Fax: 215-968-3676 • [sales@pelmor.com](mailto:sales@pelmor.com)