Control Devices - CR25-100 -CR25 CR Series Brass Pressure Relief Valve, 0-100 psi Adjustable Pressure Range, 1/4" Male NPT

A couple of things should be noted about markings on valves. The right PSI nearly always can't be found by looking at them. A pressure gauge can be used to set the right pressure for the valve to open. The most frustrating thing about it is that the valve won't close once the pressure drops below the set level. For adding pressure to beer when brewing, I use this for a spunding valve. Suppose I set it at 15 PSI, when it reaches 15, it will open up and stay open until it completely releases all the pressure. Thereafter it will close again and begin to fill up. For an application like that, it would be pretty useless.

Jillian Carter

| Oct 21, 2020

There is literally no meaning to the gauge, as has been mentioned by others. The keg I used was set to 12 psi, so I put this in this A 20% discount. The air condition is set to 50psi, but it vents at 12 psi? The funniest thing I've heard. Even if you have a gauge, why do you have it? If they put a sticker on it, they should say "LESS - " You're not allowed Please read on. Really, this is all you're going to get. Not only that, but it does not respond very well. There is no real open or closed gauge. There is a closed area, and then it is partially open, a little bit open, a tiny bit open, and then it is almost closed, and it is Often a vessel set to 15 psi will vent down to 12 psi and close, 13 psi if it is closed, 11 psi if it is open. see no option options, so I don't know what to do, but it is a bit of a hassle to use this.

Jamari Cook

| Apr 26, 2021

Since the markings are meaningless, I removed the measurement sticker in order to give the piece a cleaner appearance. When placed in a pressurized keg, the test resulted in accuracy. As I filled the keg to *10PSI, disconnected the gas, connected the spinning valve, and slowly turned the dial until I heard a release of pressure, the pressure built up inside the keg. After filling the keg to *15PSI, I disconnected the gas, reconnected the spunding valve, and watched the pressure develop until it reached *10PSI, at which point the keg popped. It seems to work well to me.

Layne Rice

| Feb 05, 2021

The device is used to bleed off the back pressure from my Medo LA45C pump for my guppies in cases of emergency. 1/5" x 8" airstones are pressed into my ball valve so my backpressure on the ball valve is set at zero. When I use a ball valve, I actually dump excess air through a ball valve and huge airstones. The pressure should be at least 5 PSI. When airstones fill up, however, this valve opens in order to prevent the piston rings on my Medo from being blown out by back pressure.

Jillian Williams

| Sep 20, 2020

This relief valve is the part that I used to build the spunding This application was perfectly suited to it. In the fermenter, I had 4-15 psi of pressure, and in the kegs, I set it to 4 psi using the valve, and it held that pressure for the full 10 gallon transfer into two There is no need to worry about the comments that say the scale is not accurate. The gauge in the pictures shows the pressure and you can set it by watching it.

Kiaan Anderson

| Mar 04, 2021

In general, it relieves quite a bit It is my belief that more expensive valves relieve more pressure if this is the case. As far as I'm concerned, it's pretty cool for what I'm using it for so far. Measurement numbers are not to be taken into account when measuring The only purpose of the packaging is to make the item more attractive to consumers. The kit that I received came with a nut that needed to be installed, but that wasn't complicated. I use mine with a pressure gauge on a 55 gallon steel sterilizing/pasteurizing drum that I've made myself. No more than 2 psi should be allowed in the tank. It is primarily used when the pressure reaches 1 when I begin relieving the pressure Five pounds per square inch. As I adjust my pressure gauge, it becomes less or more compressed. In my opinion, it's most useful to me in that it acts as an alarm for me to turn down or open the main relief valve more wide when needed. It will surely prevent the psi from exceeding the point at which it is set. Even if I turned the propane up all the way, my tank would still exceed the 2 psi that it could be set at if I turned up the pressure relief valve all the way. Because I have not tested it, this is not a proven fact. I don't bother to find a better relief valve since it relieves enough pressure. Nonetheless, if I wanted to make sure I was completely safe, I would wish for a valve that relieved more pressure so that I could be sure that the 2 psi mark that I can set it at could never be exceeded.

Aurora WHITEHOUSE

| Sep 21, 2020

The price is reasonable, but the quality isn't great. Basically, it works, but it's set at a drift. Setting the relief pressure can be done with a gauge. This is probably not a product I would buy I updated my post on 11/25/19. Due to the unit's inability to stay sealed, I have lowered its rating. As the keg gets to zero, it leaks just a little bit more. My next step was to clean the pin valve and valve seat a second time. As a result, metal chips were found in the cotton swab. Neither would I recommend it nor would I buy it.

Talia Phelps

| Sep 27, 2020

A guide like this is not particularly useful, as it is similar to almost any other budget PRV. It will be necessary to use In testing, it does not exhibit this issue. Other purchasers have said it does not reseal, but mine does not exhibit this issue. For a cheap spunding valve build, I connected it to a TEE and gauge, as well as a barb to disconnect it. Using the spinding valve, I went to 30 PSI, hooked up the keg, then dialed down to 25 and the pressure was released. The c02 tank vented as it should after I turned it back on. During testing, I turned the PRV down to 15 psi, and it worked just as I had

I'd be willing to pay $5 - If it didn't need a separate gauge, it would be 10 more. There had to be tape applied to the 1/4 NPT to get a leak-proof seal. It's your call.

Marlon Carlson

| Feb 06, 2021