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1/2" NPSM inlet and outlet ports
Magnetically Latching Coil
2-way / 2-position valve
Pilot operated diaphragm valve
Aprx. 3/8" internal orifice
Coil / Electrical
4.5-Volt DC (2.5W)
Max voltage: 9.0 VDC
Min. 50 ms pulse opens valve
Min. 50 ms reverse pulse closes
Pressure and Temperature
3 to 115 PSI (0.2 to 8 BAR)
160° F (70° C) Max Media Temp
Stainless Steel internal components
Ports: Nickel plated Brass
Other low viscosity fluids
Not for Diesel or gasoline
This valve is great for battery operation. A short pulse of power opens the valve and it will remain open without any power until the coil receives another short power pulse. You can control this valve with an electronic circuitry or use a three position (ON-OFF-ON) momentary switch with polarity reversing. A short pulse of power with normal polarity opens the valve and a short pulse of power with reverse polarity closes the valve. The valve will remain in the closed or open position (which ever has been selected most recently) when no power is applied. These types of valves are commonly used in automated faucets and other applications requiring minimal power consumption or long activation times..
VALVE COIL / ELECTRICAL
The valve coil is epoxy encapsulated and is water resistant (but may not be submerged).
The valve opens when it receives a 50 millisecond (ms) pulse with normal polarity ("positive" connected to red wire and "negative" connected to black wire).
The valve closes when it receives a 50 ms pulse with reverse polarity ("positive" connected to black wire and "negative" connected to red wire).
NOTE: Between 4.5VDC and 9.0 VDC, the length of the pulse is not critical as long as it is at least 50 ms long.
PIPE THREAD INFORMATION
Determining pipe thread sizes can be confusing if you are not familiar with the NPT standard. The table below shows the most common NPT (National Pipe Thread) sizes, their equivalent outer thread diameters, and the number of threads per inch (TPI):
Note: This valve uses a parallel 1/2" thread (commonly used on faucets). You should use a connector or fitting with a gasket or cone seal that creates a seal against the end of the inlet and outlet port rather than attempting to seal the thread itself.
TECH SUPPORT / CUSTOMER SERVICE
We care about our customers. Please contact us if you need any help or tech support!
Ehcotech International Inc. / valves4projects.com
350 W Ash Street, Suite 102 San Diego, CA 92101
Use the "ASK SELLER A QUESTION" link at the bottom of this page or call (619) 300-2380.
We carry repair kits and coils for most of our valves. Please contact us for pricing and availability.
FREE shipping is offered on most items via domestic economy shipping.
The Priority Mail option gives a 2 to 3 day delivery time within the contiguous U.S. for a flat rate of $3.99 per order.
See all Domestic and International shipping options and prices under 's "Shipping and Payments" tab.
Please call us at (619) 300-2380 for overnight shipping quotes and daily deadlines. Local pick-up is also available with prior arrangement.
Our warranty works without hassles. All replacements are quickly shipped from our warehouse in San Diego, California. You are responsible for the cost of shipping the defective item back to us; we gladly cover shipping cost back to you. If time is of essence, make sure to call us first. We understand that down-time can be expensive and we will do our best to work with you.Please note that diaphragms and coils are considered "wear and tear" items and are not typically covered by the warranty.
If you are not happy with our products for any reason, you may return them for a full refund (excluding shipping charges) within 30 days of the purchase.
We accept PayPal payments. If you cannot use PayPal, Credit Card payments may also be made over the phone at (619) 300-2380.
OEM CUSTOMERS AND LARGE QUANTITY ORDERS
We work with Original Equipment Manufacturers (OEMs) on regular basis. Please contact us for OEM pricing and/or large quantity discounts.
USE THE STORE CATEGORIES ON THE TOP LEFT SIDE TO FIND OUR OTHER PRODUCTS.
_gsrx_vers_486 (GS 6.5.1 (486))
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1/2" Magnetically Latching Solenoid Valve 4.5 To 9 Vdc Water Etc. Ddt-ml-4.5vdc: $15