Female NPT Check Valves

Female NPT Check Valves are available in sizes up to 3" in Carbon Steel (Zinc Dichromate plated for added corrosion resistance), 316 Stainless Steel, Brass and Aluminum. Available elastomers include Buna N, EPDM, Viton, Silicon and Teflon. Valve internal components can be customized to fit your exact application requirements.

Full Port Female NPT Check Valves

Flow Comparison MNPT

Our Full Port, Female NPT (FNPT) Check Valves provide more flow and lower pressure drops than conventional check valves. Our elastomer hinge check valve design takes performance to an entirely new level by eliminating the restrictive valve seat and substantially increasing the valve’s open area and flow coefficient (Cv). They are ideal for application in vacuum pumps, compressed air and gas systems as well as in water systems where low head loss and elimination of water hammer are desirable.

Fast Delivery

We maintain an extensive inventory of valves, parts and components in a wide variety of materials so we can respond to your needs quickly. Valves are typically assembled and tested within 1 to 2 days after receipt of an order.

Features & Benefits

Our Full Port, Female NPT Check Valves offer some impressive advantages.  Carbon Steel valves come standard plated with a Zinc Dichromate Coating for superior corrosion resistance and long life. 

FNPT Plated Check ValveStainless FNPT Check Valves

  • Lowest Pressure Drop
  • High Flow Coefficient (Cv)
  • Easy to Install
  • USA Content
  • ARRA Compliant
  • Alleviates Water Hammer
  • Simple Installation
  • Variety of Configurations
  • Zinc Dichromate Plated Steel Valves
  • Every Valve Tested

Complete Engineering Data

Engineering data, including available materials, dimensions, exploded view, part numbers and descriptions, standard models, valve Cv, pressure loss curves, and other information is available in our brochure.

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