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Small brass solenoid valve body, 1/8 inch port, no coil attached

Dayton

Dayton 3A422 1/8 in Brass Solenoid Valve Less Coil

SKU CH-KJ40-REQ11 MPN 3A422

A normally-closed 2-way brass solenoid valve body with a 1/8 in pipe size, 1/16 in orifice and 0.12 Cv for air, inert gas or water up to 500 psi and 180 °F

  • TypeDrain Components
  • Normally closed design prevents flow until energised
  • Brass body resists corrosion in water and inert gas lines
  • 1/8 in pipe size fits compact plumbing installations
  • 12 Cv rating delivers precise low-flow control
  • Rated to 500 psi for air, gas and water service

Brass Solenoid Valve Body

The Dayton 3A422 is a 2-way, normally closed valve body made from brass with a 1/8 in nominal pipe size. It suits technicians and engineers who need a compact flow-control component for air, inert gas or water circuits.

Replaces Worn Valve Bodies

The valve handles pressure differentials up to 500 psi for both air and water with a Cv of 0.12 and a 1/16 in orifice. Upgrade when an existing body leaks, corrodes or can no longer meet the 180°F fluid-temperature limit.

Fits 1/8 Inch Piping

Threaded ports accept standard 1/8 in pipe fittings so the body installs directly in existing lines. A separate coil must be supplied to actuate the valve, freeing the builder to choose the voltage and enclosure rating the application demands.

Highlights

  • Normally closed design prevents flow until energised
  • Brass body resists corrosion in water and inert gas lines
  • 1/8 in pipe size fits compact plumbing installations
  • 12 Cv rating delivers precise low-flow control
  • Rated to 500 psi for air, gas and water service

Specifications

TypeDrain Components
BrandDayton
Model3A422

Questions about this item

What thread size and body material does the 3A422 valve body use for piping connections?

The valve body has a 1/8 in nominal pipe size and is made of brass, so it threads directly into 1/8 in NPT fittings.

How is the coil attached to the 3A422 body, and what orientation mistake should be avoided?

A compatible coil slides over the solenoid stem and is secured by a retaining nut; the coil must sit upright so the plunger moves freely.

Which internal part of the 3A422 is most likely to need replacement after extended use with water at 180 °F?

The plunger seal and return spring inside the brass body wear fastest with hot water cycling; keep a rebuild kit on hand.

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