Plain End Check Valves

Plain End Check Valves (equivalent to Techno Check Valve 5104) are the appropriate choice when fully welded piping is required in your system, or when you would like to install a check valve using hose clamps. Our Plain End Check Valves 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 Plain End Check Valves

Flow Comparison MNPT

Our Full Port, Plain End Check Valves provide more flow and lower pressure drops than conventional check valves. (Note: Male NPT valve shown in illustration at right.) Use Plain End Check Valves when you need welded piping. 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

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.

Plain End Check ValvesFeatures & Benefits

Our Full Port, Plain End Check Valves offer some impressive advantages.

  • 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

Plain End Valve Size & Dimensions Chart

plain end check valve dimensionsplain end check valve sizes

SizeABC
1" 1.30" 5.75" 1.60"
1.25" 1.65" 5.75" 2.00"
1.5" 1.90" 5.75" 2.30"
2" 2.35" 5.75" 2.80"
2.5" 2.85" 5.75" 3.30"
3" 3.45" 5.75" 3.90"
4" 4.45" 6.75" 4.90"
5" 5.55" 7.75" 6.10"
6" 6.60" 8.75" 7.10"
8" 8.60" 10.75" 9.50"
10" 10.75" 12.75" 11.50"
12" 12.75" 14.75" 13.80"

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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