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U.S. Solid- 3/8" 12V DC Normally Closed Solenoid Valve, VITON gasket, Solid Brass
U. S. Solid Normally Closed Electric Solenoid Valve; 3/8”ports, brass body, Viton seal, 12 volt DC, for air, water, or fuel
U.S. Solid normally closed (N/C) electric solenoid valve is constructed with a durable brass body, two-way inlet and outlet ports with three-eighth inch (3/8") female threaded (NPT) connections, and heat and oil resistant Viton gasket.The direct current coil energizes at 12 volts DC;voltage range +- 10%. 18 Watt power rating.
Direct lift valve operates from 0 PSI to a maximum pressure of 145 PSI (0 MPa to 1.0 MPa). Operational pressure range for water: 0 to 128 PSI; for oil: 0 to 99 PSI; for air or gases: 0 to 128 PSI.(4 mm) flow aperture permits a unidirectional flow capacity of 0.6 gallons per minute (GPM) of water at 60oFwith a pressure drop of 1 PSI (0.6 Cv).
Operational temperature range (steady state) -5 to 80 Celsius. It is also designed to withstand short exposures to 14 to 248 degrees Fahrenheit; -10 to +120 degrees Celsius. Suitable for outdoor use; not for use underwater.
Suitable for use with hot or cold water, gas, air, very low viscosity fluids (< 20 cst), oils and hydrocarbons, e.g., gasoline, kerosene, or diesel fuel. Valve is not intended to be energized continuously for more than 8 hours. This can lead to burnout of the coil, and malfunctioning of the valve. In cases where this is necessary, it is recommended user install a computer fan to keep valve cool.
Customers chose this general purpose valve for: do-it-yourself projects, moderate temperature applications, harsh chemicals, flow control for irrigation systems, reverse osmosis system, electronic control of tank selection, water line, or motorcycle air shocks.
Manufactured in China. Model: USS2-00006. Quality and/or conformity managed in accordance with standards:
ISO 9001:2000; GB/T 19001:2000; European EN61000-6-1:2001 and EN61000-6-3:2001.
Direction of the flow (most U.S. Solid Valves are UNIDIRECTIONAL)
FLOW DIRECTION
Make note of the arrow on your valve. Most U.S. Solid valves are unidirectional. This means they are intended for flow in one direction only, in the direction of the arrow. See Figure 1 for location of arrow. If connected in opposite direction, the valve will not actuate properly (will not close for Normally Closed valves). Additionally, be sure the medium passing through is filtered. If not, particles will cling to the gasket over time, which can cause it to not seal properly.
National Pipe Thread, Standard USA thread (use Teflon tape to seal)
THREADING
U.S. Solid Valves follow National Standards for pipe thread. In the U.S.A. we use NPT, while in England we use BSPT. We recommend use of Teflon tape to ensure seal of the NPT threading, as shown in Figure 2. The tapered male and female thread are forming angled surfaces that with increased torque squeeze the Teflon tape that results in a tight seal. It is suitable to liquids, gases and even for high vacuum. NPT seal is known to be use even in UHV (Ultra High Vacuum) applications. Note that this particular valve is not pneumatic by design but numerous of our customers use them for compressed gasses.
POLARITY
For valves with 2 wires, the valve will actuate regardless of which terminal each wire is connected to (+ or -). Some units, like those pictured to the left, include a ground wire. Open up the connector and look for the ground symbol, shown in the corner of Figure 3. For valves with a ground wire, please be sure to ground the valve. For the other two wires, the valve will actuate regardless of which terminal each wire is connected to (+ or -).
OVERHEATING
These valves are not intended to be energized for more than 8 hours continously. While most do not have more than 18W of power, the coils are in a contained area, and can burnout if energized for too long. If necessary to energize continously for extended periods, we recommend a computer fan to keep the coil cool.
GASOLINE WARNING
Note whether your solenoid valve has a VITON gasket, NBR gasket, or another type. NBR gaskets are not intended for use with gasoline, kerosene, or other petroleum products. If your valve is needed for these, please purchase a valve with a VITON gasket.
PRESSURE
All solenoid valves need some pressure to actuate. This is especially true of pilot or indirectly operated valves.
George reynolds
Reviewed in the United States on February 24, 2025
Works great used to supply air to ttain horns
FHenderson
Reviewed in the United States on January 9, 2025
While installing and using this is great generally. The issue is I haven’t used a lot and now just over a year the solenoid has failed. So now I need to replace it and get a spare for an emergency or just not rely on the extended range of my fuel tank. No real good options. I mean I have only actually used it 3/4 times in the last year as I have not taken any long trips. Not real happy!
shawn
Reviewed in the United States on January 21, 2025
We use it every day that we're on our boat to turn on/off the propane supply to the stove and we're happy with it. As they warned in the literature, it (the coil) gets hot with continuous use. We cooked Thanksgiving and Christmas dinners with it and it's still working fine. Note: I made the mounting bracket pictured but it does have 2 metric (sorry; I don't remember the size) mounting screw holes in the brass body which helps with mounting options.
William
Reviewed in the United States on July 3, 2024
Great product, price was good and it does what is is supposed to do.
Jason
Reviewed in the United States on November 24, 2024
This is not a ball valve, its more like a orifice controlled valve with a 1/8'' hole for liquids to flow through. I used it with a 90 gallon auxiliary tank plumbed into my fuel fill neck on a 22 ram 2500. It works great but you MUST put a inline fuel filter upstream of the valve or very small particles will plug the small orifice hole up. I might go up one size next time if the orifice hole is bigger. Its been very reliable and it has been left on over 24 hours multiple time on accident.
Pam
Reviewed in the United States on July 17, 2023
I was doing work for my mother. Before I hooked everything up, I made sure I looked at the flow arrow on the side. I assembled everything and called my mother to witness the first use. The first problem as the pump wasn’t primed, but this was fixed quickly. Then…boom! It was working! Then I told mom to release the switch…she wasn’t pushing it. When she did push the switch, flow increased. I was angry. Mom said “break time!. I told my mom that I’m writing a review, while complaining about this switch. Then a light went on; I should check the flow arrow… I had installed it backward. I guess I should have recalled the great advice of “measure twice, cut once.” If I had doubled checked my work, I would have saved myself headache.
Martin
Reviewed in the United States on November 22, 2023
Very well made valve which is working well. Has the mounting bolt points on the bottom which it appears the SS Solid valve do not so I had to return a couple of SS valves before realizing the brass ones have the mounting points but not the SS (at least the ones I looked at). This could be made clear in the description
Daimon Derouin
Reviewed in Canada on September 9, 2022
Worked as expected but solenoid gets very hot when energized. Curious if this will make it fail sooner.
Mark Weishaar
Reviewed in Canada on November 10, 2022
Nice item, great addition to a gravity feed auxiliary fuel tank
Customer
Reviewed in Canada on October 5, 2020
no bracket or hardware had to make my own
Bruce W.
Reviewed in the United States on May 6, 2018
I originally posted the negative review below, and almost immediately after posting it, the owner of the company not only issued me a credit, but he sent me an email acknowledging they had a manufacturing problem. He also offered to send me out an immediate replacement, and asked that I call him personally. So, I called, and he answered - on a Sunday.As background, I bought this solenoid over a year ago, but had not installed it until last weekend, so I had exceeded the warranty period and they were under no requirement to address my concerns. I was very impressed that he admitted they had a manufacturing/supplier problem and they were replacing the units.He explained that some people do not understand these types of valves are not intended to be energized (i.e. be kept in the on/open position) for an extended period of time. The valve is opened via an electromagnet which by their very nature will generate some heat over time. That is both entirely reasonable and in line with the additional research I had done. This was also in line with my particular need (to open a low-pressure LPG line in a boat/RV when cooking, and automatically shut off the supply when the switch is turned off). I also determined this is consistent with other solenoids. He went on to explain that there are better solutions for valves that need to be kept open for extended periods.I put in the replacement, and am happy to report that while the solenoid gets warm, it is much cooler than the first one, and the draw went from 2 amps on the first unit to about 1.2 amps on the replacement. As sailors, we are always concerned about battery draw as we sail for many hours without running the engine, so unnecessarily drawing down our battery bank is not something we want to do unnecessarily.In short, I am extremely impressed by someone who cares enough about their business to fix a problem even after the warranty period expires - and to be honest when a manufacturing or supply problem is discovered.I will now go out of my way to buy from US Solid in the future.ORIGINAL REVIEW:I bought this valve as I had to repair the system on my boat about a year ago. I finally got around to replacing my old solenoid which was quite rusty, but still worked. Upon hooking this up, it ran WAY hot, measuring over 180 degrees on the outside. Now I have to replace it immediately after putting it on. I see they no longer sell this unit.
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