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Prior to Jan. 2, 2000 Serial Number Date Code After Jan. 2, 2000 CAUTION: Refer to the Nil-Cor Corrosion Guide, Catalog 1000, to verify suitability for chemical applications. Contact factory for assistance for chemicals not listed. 8/31/07 Pub. 410 www.nilcor.com...
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Installation 1) Because Nil-Cor Check Valves are unidirectional, it is important to ensure that the arrow on valve points in the direction of free flow. 2) Pipe must be properly aligned and provisions made to minimize stress from thermal expansion. Always review pipe manufacturer’s recommendations.