Control Devices-NC25-1UK002 NC Series Brass Non-Code Safety Valve, 25-200 psi Adjustable Pressure Range, 1/4" Male NPT

Brand:Control Devices

3.5/5

€
30.22

This Control Devices NC25-1UK002 safety valve has a brass body, an adjustable relief pressure, a 1/4" male NPT threaded inlet connection, a silicon O-ring, and a stainless steel pull ring for manual pressure relief. The valve's brass body, brass valve seat, and the stainless steel spring and ball resist corrosion and can be used in operating temperatures up to 250 degrees F. The valve can be adjusted to open between 25 and 200 psi using the knurled adjustment screw and locking jam nut. This safety valve has an 80 standard cubic feet per minute (SCFM) flow rate and is suitable for high temperature pressure relief applications such as in air compressors. Relief valves remove excess pressure or vacuum from a system. The valve openings allow fluids or gases to escape to decrease pressure, and then close once the valve reaches the reseating pressure limit. They also relieve excess vacuum by opening to release a gas into the system and then closing after it reaches its low-pressure limit. Some relief valves have an adjustment mechanism to set the pressure where the valve opens, making it suitable for various applications. Relief valves are rated according to the volume of liquid or gas that can flow through them and the material that the valve is constructed from must be suitable for the fluid or gas, which may be corrosive or at an extreme temperature, in which it operates. Relief valves are used in a variety of applications, such as air compressors, petrochemical and chemical manufacturing, natural gas processing, and power generation. Control Devices manufactures valves and other flow control devices. The company, founded in 1963, is headquartered in Fenton, MO.

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EAN: 0094700417541

Categories Home & Kitchen, Industrial & Scientific, Kitchen & Dining, Small Appliance Parts & Accessories, Pressure Cooker Parts & Accessories, Replacement Parts,

Silicon O-ring provides leak-proof seal to within 10 percent of set pressure. 250 degrees F maximum temperature for use in high temperature applications. Brass construction and stainless steel spring for corrosion resistance. 1/4" male NPT threaded inlet connection. Relief pressure adjustable from 25 to 200 psi.

Brand	Control Devices
Country of Origin	USA
Domestic Shipping	Item can be shipped within U.S.
Exterior Finish	Stainless Steel, Brass
Inlet Connection Size	0.25 Inches
Inlet Connection Type	National Pipe Tapered
International Shipping	This item can be shipped to select countries outside of the U.S.
Is Discontinued By Manufacturer	No
Item Dimensions LxWxH	5 x 1 x 1 inches
Item model number	NC25-1UK002
Manufacturer	Control Devices
Material	Brass
Outlet Connection Type	MNPT
Product Dimensions	5 x 1 x 1 inches; 1.59 Ounces

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Scritto da: Woodchuck

Works perfectly

I bought a cheap pressure paint pot from Harbor Freight Tools and the pressure relief valve kept blowing at 30 psi. I bought this as a replacement and it works perfectly. It's very easy to dial in the exact pressure for which you need it to release.

Scritto da: Senpai!

Does what it's supposed to do.

Came with the blue 150-200psi spring installed, my 60gal compressor wants 140psi max, so I installed the smaller "gray" spring that is good for 100-150psi. Disabled my electric pressure shut off, ran the compressor up to 155 psi, then slowly backed off on the adjustment until it triggered as I had it too tight. I let it bleed pressure until it shut itself off, backed off the adjustment a little more, let the compressor fill the tank again and this valve released at exactly 150psi. Tightened down the locknut, enabled the electric cut off and tested again. My electric cutoff triggers at 140psi, it triggered like normal, I disabled it, let the compressor keep going, and this valve triggered as it should at 150psi. So all in all works as it should. Things to keep in mind below: It's a spring, so if you crank the adjustment knob all the way down you can completely compress the spring and it'll never release. This is the same as if you just blocked off the pressure relief entirely, so start with the adjustment only screwed in a little and adjust to raise the pressure. When it pops it'll bleed off about half the pressure needed to activate. Mine activates at 150psi, it'll stay open to bleed pressure until about 75psi. Yes, this is annoying, but it's not meant to be a pressure control, it's meant to be a safety valve to keep your tank from exploding and you from dying. I don't trust anything fully, so I'll test this on a monthly basis to ensure it still works as designed. Will update this review if any changes are needed or made.

Scritto da: E 2003 Tundra & 2000 ML320

Ajustable Pressure Relief Valve Review

This little PRESSURE RELIEF VALVE was ordered for an RO pressurized system as an extra safety backup in case the water pump pressure switch would fail and the pump would continue building unsafe pressure to the system to the point it would damage the system. There were absolutely no written Instruction in the package from the manufacture! I was lucky enough to have found a reviewer who actually mentioned what the water pressure range each springs represent below: manufacturer instructions: Yellow from 25-50 Red from 51-100 Silver from 101-150 Blue from 151-200 I ended up using the red spring, because It' s between the safe range of my water pressure system. The safe range that I needed is beyond 85 PSI for the relief valve to open and release the pressure until It safely got back to 80 PSI once again. To adjust the relief valve: 1) There are two nuts on top of it. First among the springs, decide which is the safe range your system should safely operate under. 2) Totally unscrew the top and put in the correct color spring intended to be used according to your system 3) For instance, I have used the Red Spring. Tightening down the top nut to increase the cut-in range between 51 PSI-100 PSI to where the relief valve will open. I was able to test it on my system until I was able to narrow it down to 85PSI where It would safely open up and release the pressure back to just 80 PSI. I took one star off, because there were no Instruction at all for the little thing!

Scritto da: Austin

Originally came misassembled, but easy to tune

If your valve is leaking under any pressure, check that the little plug is rubber side down when you trade out the springs. Overall, works well enough as a secondary safety measure. mine won't reset until the pressure gets to about 10 psi (set at 60) but its not a regulator, it's a safety relief

Scritto da: Gabriel Velazquez

Works Excellently Common Sense Required

I purchased this for an air compressor I bought which had an under-spec relief valve. This valve solved my problem, and I love that it is adjustable. Some common sense is required to put the valve together, it doesn't include any written instructions, but then again, if you do not understand how this valve works, and how to put it together, then perhaps you shouldn't be operating whatever it is that you are screwing this valve into. Hmm??? Regardless, adjusting the valve is as simple as squeezing the springs between your fingers. The softer the spring, the lower it's operating range. The springs are color coded so it is easy to identify them. Once you find the correct spring for the range you are seeking (in my case I needed the blue spring 100-200 PSI), it is as simple as dropping the spring in, and turning the adjusting knob until the valve attains the pressure you are seeking. In my example, I screwed in the knob about 3 turns, and cranked on my compressor. At about 100 PSI the valve discharged. I then screwed it in another 1.5 turns. The compressor shut off at it's operating pressure of 150 PSI. I slowly backed the knob off until the valve began to discharge air, and from there screwed it back in a half turn. Works great! Compressor reaches it's operating pressure, and connecting loads, and adjusting the feed regulator does not discharge the valve. I'm extremely pleased with both the valve and the compressor!

Scritto da: Cly Faker

Decent upgrade to a stock safety release.

When I first started dice making I decided to make myself a pressure pot using the (relatively) low cost paint tank conversion. After having the original safety valve trip when the tank hit just 20 PSI (and scaring the crap out of me in the process), I started looking around for a new one. I found this valve mentioned in one of the resin casting communities I frequent, and many months later I still have no complaints.

Scritto da: Amazon Customer

Lacking Documentation

This may be a great product, but it comes with ZERO documentation telling you what spring covers what pressures. Putting the wrong spring in a low pressure system could be catastrophic. Useless without documentation….