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Male NPT Check Valves (MNPT)

Our Male NPT Check Valves (equivalent to Techno Check Valve 5002) are available in sizes up to 12" 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 Male NPT Non-Return Valves

Flow Comparison MNPT

Our Full Port, Male NPT (MNPT) 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.

U.S. Valve Design Conventional Design

Open flow path, low ∆P, more laminar flow Restricted flow path, high ∆P, increased turbulence

Features & Benefits

Male NPT Check ValvesOur Full Port, Male NPT Check Valves offer some impressive advantages.These valves are suitable for any orientation including vertical up flow and downflow

  • 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
  • Performs well with VFD Pumping Systems

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.

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.

  • Male NPT Body (MNPT) Chart
  • Techno Check - U.S. Valve Cross Chart

male npt check valveFull Port Male NPT Check Valve

1" 1.30" 3.50" 1.60"
1.25" 1.65" 3.50" 2.00"
1.5" 1.90" 4.00" 2.30"
2" 2.35" 4.00" 2.80"
2.5" 2.85" 5.00" 3.30"
3" 3.45" 5.50" 3.90"
4" 4.45" 6.00" 4.90"
5" 5.55" 7.00" 6.10"
6" 6.60" 8.00" 7.10"
8" 8.60" 10.00" 9.50"
10" 10.75" 12.00" 11.50"
12" 12.75" 14.00" 13.80"
Techno Part #U.S. Valve Part #BodyInternals
5002-AL 07-0-0 Aluminum Aluminum
5002-CL.A 07-1-0 Carbon Steel Aluminum
5002-CL.D 07-1-4 Carbon Steel Stainless Steel
5002-BR 07-3-3 Brass Brass
5002-304 07-4-4 Stainless Steel Stainless Steel
5002-316 07-4-4 Stainless Steel Stainless Steel

Click here to Request a Quote or call us at 1-410-789-0999

Request Your Quote or call us at 1-410-789-0999