Solenoid Valves

by Mike Hansenby Mike Hansen | ©Dultmeier Sales

Solenoid Valves are used for controlling the flow of air, water or chemicals. Available in a wide variety of styles and configurations, solenoid valves typically have brass, stainless or plastic bodies with internal sealing options of Buna, Viton, EPDM or Teflon. Solenoid valves are also available as valves only or with strainer/valve or adjusting combinations.

Solenoid valve coils are available in 24 Volt, 110 Volt, 12 Volt or 240 Volt options. These coils are available in normally open or normally closed types. Normally open coils allow open flow when coil is off or not energized. Normally closed coils are closed flow when not energized and open flow when the coil is energized. Solenoid valve coils are available with lead wires, spade coils or Din coils.

Two popular styles of solenoid valves are Pilot or Diaphragm. Pilot/Piston style solenoid valves have a piston that raises when activated to allow flow through the valve and lowers to close when flow is not required. Diaphragm style solenoid valves have a diaphragm that opens or closes the flow chamber as needed.

Typical sizes for solenoid valves range from 1/8" to 2" ports.

Flow adjusting solenoid valves have a needle stem feature that allows for regulating the amount of product that passes through the valve. Built-in strainers are also available for some models to ensure that clean products are entering the valve chamber. Combination solenoid valve/manifold blocks are also popular for a single input product and multiple control of output flows.

Solenoid valves have pressure ratings that are based on minimum and maximum "operating pressure differential" or ODP. This ODP rating can range from 0 psi to 1200 psi and higher. ODP is the difference in pressure from the inlet side of the solenoid valve to the outlet or discharge side of the valve or system.

Most solenoid valves are easy to repair. Pistons, seals and diaphragms are usually inexpensive and easy to change out.

Some of the common Solenoid valve manufacturers are Dema Engineering, Kip Inc., GC Valves, Suntec, Texas Industrial Remcor, Kingston and many more.

Mike Hansen  |  Dultmeier Sales
© Copyright Dultmeier Sales, LLC this material cannot be utilized in any way including on other websites or publications without the express written permission of Dultmeier Sales.
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