Two-Way Direct Acting Solenoid Valves

For Corrosive and Ultra-Pure Liquids

Solenoid valves are designed using corrosion resistant thermoplastics and premium elastomer seals to offer bubble tight shut-off service and million cycle durability.  Valves are normally closed when de-energized.   The patented Fail-Dry vented design with a secondary backup diaphragm helps to avoid emergency shutdowns and gives a visual warning of potential problems is standard on most models.  Most valves are supplied with coils rated for continuous service. 

Design - An electric solenoid coil is basically a simple electromechanical unit used to control the opening and closing of a valve.  Energizing the coil creates a magnetic field which lifts the shaft and seat of the valve off its orifice.  When de-energized a small  spring pushes the shaft and seat down to close the valve.  Response time is a split second.

Coil Selection
  • The coils used are available in 11, 20 and 58 watts with
  • AC voltages of 24, 120, 240 and 480 at 60 Hertz (may be used with 15% less voltage @ 50 Hz.) 
  • DC voltages are 12 and 24. 
  • W11 and W20 - 11 and 20 watt coils are standard  with weatherproof NEMA 4   polyester and nylon for corrosive environments.  For indoor or outdoor service.  Includes DIN connector with 1/2" conduit connection.
  • E20 and E58 - Explosion proof enclosure and water tight connection - NEMA 7 - CL. 1- Group C & D
  • DIN connector with indicator light is optional at modest cost
  • 11 and 20 watt coils are rated for continuous service up to 95 F ambient temperature.   58 watt coils are rated for a 15 minute maximum on cycle.
Valve Selection Criteria - Solenoid valve selection is a combination of selecting the material of construction for the valve body, shaft seal type and elastomer.  The sizing of the valve is dependent upon the flow rate required through the valve, the allowable pressure drop of the solution through the valve, the inlet pressure and back pressure of the solution.  We will assist in the selection process -- E-Mail:  sales@kthsales.com

Using electric solenoid valves for chlorine ?  If so, read this.

Take me to actuated ball valves - I don't want a solenoid valve

EASMT & EASYMT - Teflon Bellows - For acids, caustics, chlorine and ultra-pure solutions
EASMT and EASYMT is the most common applied of this group of solenoid valves.  Incorporating a Teflon bellow seal to prevent stem leakage and Viton seat sealing allow this valve to be used for both acid and caustic services.  It offers the widest selection of sizes, materials and coil configurations. 

  • PVC, CPVC, PVDF or Teflon®
  • Glass filled or natural polypro bodies
  • 2 million cycle life design
  • Teflon Bellows seal with Viton or EPDM seat
  • 1/4", 1/2", 3/4" or 1" FNPT
  • Patented Fail-Dry vent
  • W20 or G58 watt coil
  • Higher flow rates - see chart below
  • For pressure, drain and vacuum service

Bulletin -


EAST Series - Compact and Economical Teflon® Bellows

  • For pressure, drain and vacuum service
  • High inlet pressure to 140 PSI - back pressure to 90 PSI
  • Teflon Bellows seal with Viton® or EPDM seat
  • Compact size - only 4  9/16" high - for limited space applications
  • 1/4" or 1/2" FNPT size - Cv = 0.5
  • W11 watt weatherproof coil
  • PVC, PVDF or polypropylene bodies
POM-11watt.jpg (10472 bytes)
  • 2 million cycle life design
  • Patented Fail-Dry vent

smallnew.gif (926 bytes) Higher Flow Version

  • 70 PSI inlet pressure
  • 1/4" or 1/2" FNPT  - Cv = 0.8

Bulletin -        dimensions

Pipe Size Orifice Cv Max. Inlet Pressure* Max. Back Pressure* Watts Model No. with PVC body
1/4
1/2
3/16 0.5 140 70 11 EAST2V6W11-PV
EAST4V6W11-PV
1/4
1/2
1/4 0.8 70 60 11 EAST2V8W11-PV
EAST4V8W11-PV
1/4 .375 1.1 140 38 20 EASYMT2V12W20-PV
1/2 .375 1.1 140 38 20 EASYMT4V12W20-PV
1/2 .375 2.1 125 18 20 EASMT4V12W20-PV
3/4 .470 3.1 58 17 20 EASMT5V16W20-PV
1 .452 3.6 25 12 20 EASMT6V14W20-PV
1 .656 4.6 15 12 20 EASMT6V22W20-PV
1/2 .375 2.3 140 38 58** EASMT4V12G58-PV
3/4 .470 3.4 120 34 58** EASMT5V16G58-PV
1 .656 4.7 70 34 58** EASMT6V22G58-PV

* Inlet pressure and back pressure for AC coils only - DC coils rating will be reduced by as much as 50% - contact us for details

** 58 watts coils - intermittent duty only.

  • For other body materials change from PV to CP - CPVC, GPP - glass filled polypropylene, PP - natural polypro, PF - PVDF, TF - Teflon®
  • For other seal materials change from V (Viton®) to EP - EPDM or B - Buna 
  • Note: EASMD Series is available in EPDM only.
  • EUC Series valves have been discontinued.  See EAST Series
  • 1/8" and 3/8" valves have been discontinued.
  • EASYM and EASM U cup seal and EP rolling diaphragm valves have been discontinued - use Teflon bellows for replacement.

Need help in selection ?  Call 1-800-235-3604 or E-Mail sales@kthsales.com

When higher flow rates or higher pressures are required, a solution pressure pilot type valve will be used for desired results.

PS Series - Pilot Operated Solenoid Valve for High Pressures and High Flow rates