1/2'' 4.5 - 9 Volt DC Latching Electric Solenoid Valve


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Technical Details

Port Size
Body Material
Seal Material Viton® Diaphragm
Orifice Size
Temp Range
Pressure Range
Flow Rate
Coil Connection
Response Time Fast Acting (Less than one second)
Duty Cycle 100% but not indefinitely
*Suitable Media Water – Air - Fuel - *Etc
Length port to port

Product Overview

  • NPSM inlet and Outlet Ports
  • 2-way Magnetically Latching
  • 90 Day Replacement Warranty
  • CE/ISO Certificated
  • Built-in Removable Filter Screen

Model# FCD-138CD



Port Size

   1/2’’ NPSM Non-tapered


   4.5 - 9V DC Coil  (5 Watts)

Build Material

   Plastic Body - Stainless Steel Joint

Working Medium

   Water – Other Low Viscosity Fluids

Operation Mode

   Magnetically Latching

Fluid Viscosity

   Low Viscosity Fluids (below 20 cst)

Pressure Limits

   3 - 115 psi   ( 8bar )


   32 to 125° F      |    0 to 50°C

Seal Material

   EPDM Rubber

Response Time

   Fast Acting  (Less than one second)

Duty Cycle

   12 Hours



The latching valve works with a short pulse of energy (50 ms) that will open the valve and keep it open until the polarity is reversed, closing the valve.

  • Valve opens with quick positive pulse (red wire to "+" & black wire to "-")
  • Valve closes with quick reverse pulse (red wire to "-" & black wire to "+")
  • Valve stays in position with no additional power being applied

Model FCD-138CD is a two-way magnetically latching valve also known as a pulse valve. This means that there are two ports in which media flows, the valve will open when a short pulse is applied, allow media to pass through and stay open until a reverse pulse is applied. This valve is ideal for battery operated systems because it dosen't require constant power. 

The port size is 1/2” inch, non-tapered male threaded (usually found in faucets). It can withstand pressure up to 115 psi (8 bar) and temperatures as low as 32 F and as high as 125 F. The seal material is EPDM Rubber. This valve is capable of flowing 6.5 Gallons per minute at the max rated PSI.

This specific latching valve has a 4.5-9 Volt DC coil. The coil head can easily be connected with your own terminal connectors or directly soldered. Included is a Built-in filter screen to prevent debris from entering the valve body. It comes with a 90 day replacement warranty and is ISO/CE certified, which means one does not have to worry about quality when purchasing it.