TAILONZ PNEUMATIC 1/4"NPT Solenoid Valve 4V210-08 AC110V Single Coil Pilot-Operated Electric 2 Position 5 Way Connection Type Junction Box

Bought this pneumatic for a scary halloween decoration and it works well. I have one from name brand sites and is say this works about just as good . Cheap too

I decided to try this valve out instead of buying the $160-$300 one that is sold by the manufacturer of the exhaust brake I put on my Dodge diesel pickup. It was easy to wire, came with all the fittings I needed to plumb it, had simple mounting holes, an led light on the solenoid to let you know when it's actuated, (nice feature when installed under the hood of a diesel truck) and has been working reliably for the last 3 months. Valve probably gets actuated no fewer than 150 times a day, automatically by my engines computer, and is switching 160psi air pressure with zero leakage.So I would highly recommend, and will use this brand in the future shall I ever have any more air or fluid switching needs.

I used this as a replacement for a PacBrake, it sits under the hood in heat and cold at 100psi and lasts. Couldn't be happier with it.

I figured that 1/8" ports would be better for small cylinders, but it was a BIG LITTLE surprise when the 1/8" version was half the size of the 1/4 valves I'm used to. A 6-32 screw is too small to mount the 1/8" valve and the holes don't line up with 1/4" valves. I will send it back and use all 1/4" valves so they can be mounted in a stacked configuration. The 1/4" version will allow a common size screw to pass through the mounting holes....I didn't remember if it is 6-32 or 8-32 but one of them fits. Anything smaller is uncommon in sae sizes and for my use. The pictures seem to show the dimensions, but I assumed they were the same.....my mistake. The valves I bought in the past from this brand worked great, so I reordered the size I wanted.

Best customer service. Took care of my problem via email fast.

The unit I received had broken threads in both of the exhaust ports (see first two pictures). Less concerning, there are burrs in the mounting holes and a couple tool scrapes on the body (see third picture). The latter are only cosmetic, but the former seem serious enough to deem the unit defective. I would have expected even a cursory QC inspection to have caught those.Maybe it's just a one-off, so I'll try to exchange it for a replacement. If the replacement is good, I'll revise my review.In general, I liked that they included the fittings. That's a nice touch worth a couple bucks. I was also pleased that the product listing clearly indicated that these were NPT ports rather than metric (or PT).**Update 2021-04-11:** I received a replacement and am sorry to report that it, too, had significantly damaged threads in one of the exhaust ports (see fourth photo). It's as though one of the screws that holds the assembly together was too long (or the hole for it was drilled too deep). Maybe the larger sizes (4V200 series) would be more reliable because there's more margin for error, but getting two in a row like this makes wonder what else is wrong with them. I have a few nearly identical valves from other suppliers that do not have any problems, so I guess I'll stick with those despite the attractive pricing, convenience of Amazon, and the inclusion of necessary fittings.

Great!

Of the two I received, one LED was not soldered on completely, so the LED did not light up. Easy to fix however. Both had the wrong sized exhaust ports - 1/4" NPT instead of 1/8" NPT. Since I needed these and did not want to wait, I had 1/8" exhaust ports on hand to use. The 1/4" exhaust ports will go in the parts bin for another project.There are also 3 wire connects, and no indication of which to use. I tried the two that were near each other and that worked. Unsure of the purpose of the 3rd connection.