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US Valve Series 18 Check Valve
US Valve Female NPT Check Valves are available in sizes up to 3" in Carbon Steel (Zinc Dichromate plated for added corrosion resistance), and 316 Stainless Steel. Available elastomers include Buna N, EPDM, Viton, Silicon and Teflon. Valve internal components can be customized to fit your exact application requirements.
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* US Valve elastomer hinged valves are designed to operate in most cases without a spring assist. However, a spring may be required for vertical down flow. A spring may also be required to improve performance for low backflow/low pressure conditions.
Contact us for other sizes, materials, and options
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