Control Devices-P5050-1EP Brass In-Tank Check Valve, 1/2" NPT Female x NPT Male

Great product! Is and works exactly as described!

I rebuilt my old 60 gl. single stage Porter Cable compressor that I call "Franken-Pressor" recently , adding larger 1/2" NPT "Black Pipe" lines , pump and a true 5hp. Continuos Duty Leeson Motor . This allows the compressor from getting so hot they go Nuclear and literally have a melt down (mine did twice in 10 years of heavy use).The compressor needed a check valve to relieve the back pressure on restart (without the valve my compressor (not a shop duty but great for home use) could not restart period (almost "Smoke-Checked" the Leeson with cut-off set at 125 psi). I finally figured out I needed a one-way check valve so there was no load on the electrical motor from the compressed air backing up into my twin cylinder pump , and this valve is rated to 450psi back pressure! Finding a valve was a bit of a chore as all lines were 1/2" steel pipe for greater volume . So far I've burned 2 pumps up and almost burned up my new Leeson 5hp. motor with those dinky 1/2" copper tube lines (WHAT A JOKE !) . I do body work etc. and I really "tax" it's capability . Yeah , I know,, I need a Two-Stage but My Ol' Man used to say "Wish in one hand and do something really "foul" in your other hand and see which fills up faster" ! ;-) I initially found this valve on a well known Industrial Supply site . Came over to Amazon and they had it ! Much quicker delivery (2 days) through Amazon.com and cheaper too . I also ran the air charge inlet line to the bottom of the tank instead of right next to the air outlet for less moisture in my lines . A heads' up for you advanced and begining DIY'rs , if you decide to get more volume from your compressor (which if like me you can't afford $1,200+ for a 2-Stage Compressor) and make it run cooler with larger lines you'll need to build a "chamber for the valve to fit 1/2" lines ,it WILL NOT fit inside 1/2" without choking off the air supply ! Get yourself 2- 3/4"x 1/2" female NPT reducer couplings (They're Bell Shaped) , 1- 3/4"x3-4" NPT Nipple , and 1- 1/2" coupler . You'll also need to lay down the tank to re-thread/tap the drain to 1/2" NPT. You may need to find a plumbing shop with the right drill size as the drill bit is $60-$80.00+ , and the Tap price will make you "Pucker-Up" as well .Search "Fastenal" or "Grainger" get the numbers and come over here to Amazon ,good bet they'll have it cheaper and the same brand as my Valve turned out to be . Big expense unless you think your're only going to use it once . Don't go cheap on the bit or tap (ie:H-Freight etc.). Get a quality Tap and drill otherwise you end up with a snapped tap or bit in your tank NOT FUN !!!!! This a great product and conversion that will strenghten and add much more life to your single-stage compressor . Signing off now, "Bogie"

Prefect fit for our old compressor. Easy to change out and got the old beast back online.

They sent me a 3/4" npt the first time. Sent me the 1/2" npt i ordered within 2 days(on a Sunday) at no charge. Seems like good quality. I'll edit this if it fails

fast shipping and great part at a great price

Fit well and worked as expected. Both ends were standard 1/2" pipe thread as advertised.

The unit is of robust construction. The internals appear clipped together which allows future cleaning or disassembly. The brass threads are well cut, and the sealing stripe is thick enough to work. Everything seals gas-tight out of the box. The plastic bits have no issue with hot gas and appear to be made of the right stuff. The 1/8 NPT port on the side is easy to access and unobtrusive for those not needing an unloader hookup. I don't know why the picture shows an unthreaded plug sticking way the side. The valve body is large in diameter and discharges to the side. As advertised, this model is best used in a tank rather than a pipe or fitting. It does, however, work just fine in any orientation. At low flow rates there is an audible fluttering of the valve (no issue). It is a fairly flow restrictive design, but it seals well and does the job. I recommend this to anyone needing a 1/2 npt check valve for a tank.

no recomiendo comprar con esta empresa el producto es bueno pero tiene malos envio llegan incompleto los productos tu compras 10 y te llegan 8 yo perdi 12 valvulas con ellos y no vuelvo a comprar con ellos la gente de amazon no da repuestas ni ayudan en nada asi que no pierdan su dinero comprando aqui