Ovládací zařízení – Mosazný přetlakový ventil řady CR25-100 – CR25 CR, nastavitelný rozsah tlaku 0–100 psi, 1/4 vnější NPT

Brand:Control Devices

3.6/5

958.76

Tento přetlakový ventil Control Devices CR25-100 má mosazné tělo, nastavitelný přepouštěcí tlak, vstupní závitové připojení 1/4 samec NPT a fluorokarbonový O-kroužek. Mosazné tělo ventilu, mosazné sedlo ventilu a talíř z nerezové oceli odolávají korozi a lze je použít při provozních teplotách až 250 stupňů F. Ventil lze nastavit tak, aby se otevřel mezi 0 a 100 psi pomocí nylonového knoflíku ve stylu mikrometru. Tento pojistný ventil má průtok 6 standardních kubických stop za minutu (SCFM) a je vhodný pro aplikace s odlehčením tlaku s nízkým průtokem, jako jsou vzduchové kompresory bez nádrže. Pojistné ventily odstraňují přetlak nebo vakuum ze systému. Otvory ventilu umožňují únik tekutin nebo plynů, aby se snížil tlak, a poté se uzavřou, jakmile ventil dosáhne limitu tlaku pro opětovné usazení. Také uvolňují přebytečné vakuum tím, že se otevřou, aby se uvolnil plyn do systému, a poté se zavřou, když dosáhne svého nízkotlakého limitu. Některé pojistné ventily mají nastavovací mechanismus pro nastavení tlaku tam, kde se ventil otevírá, takže jsou vhodné pro různé aplikace. Pojistné ventily jsou dimenzovány podle objemu kapaliny nebo plynu, který jimi může protékat, a materiál, ze kterého je ventil vyroben, musí být vhodný pro kapalinu nebo plyn, které mohou být korozivní nebo při extrémní teplotě, ve kterých pracuje. Pojistné ventily se používají v různých aplikacích, jako jsou vzduchové kompresory, petrochemická a chemická výroba, zpracování zemního plynu a výroba energie. Control Devices vyrábí ventily a další zařízení pro regulaci průtoku. Společnost byla založena v roce 1963 se sídlem ve Fentonu, MO.

Nylonový knoflík ve tvaru mikrometru pro nastavení odlehčení tlaku. Silikonový O-kroužek poskytuje nepropustné těsnění do 10 procent nastaveného tlaku. Konstrukce z mosazi a pružina z nerezové oceli pro odolnost proti korozi. Vstupní závitové připojení 1/4 s vnějším závitem NPT. Odlehčovací tlak nastavitelný od 0 do 100 psi.
Brand Control Devices
Country of Origin USA
Domestic Shipping Item can be shipped within U.S.
Exterior Finish Stainless Steel
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 model number CR25-100
Manufacturer Control Devices
Material Brass
Outlet Connection Type MNPT
Package Dimensions 4.33 x 3.23 x 1.69 inches; 2.4 Ounces

3.6

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Scritto da: Mac
1 year of use and still good
I bought this to install on my steam sterilizer. The sterilizer reaches 121°C (250°F) and 15-18psi. I obviously have an additional safety release valve and a pressure gauge. The markings on the adjustable valve seem to be within the stated tolerance. It does occasionally get stuck closed. I learned it is best if I open it completely to vent before building pressure and then adjust it when the desired pressure is reached to allow very minimal venting. It never gets stuck if this is done. It always closes and does hold a vacuum upon cooling. All in all it does exactly what I want. I may replace it soon with the same valve simply because it is cheap and for peace of mind. 4/5 for overall quality 5/5 for quality at low price
Scritto da: Caitlin G
Good as a PRV
I’m using this PRV as part of a pressure fermentation and spunding rig. For my use it works really well with one exception. It needs to be used with a pressure gauge since the gauge on the pressure adjustment is 10-15 psi off. 10 psi on the PRV is actually 15 psi on a gauge.
Scritto da: Janice Villanueva
it works pretty cool so far for what I use it for
It relieves a fair amount of pressure. I believe more expensive valves relieve more pressure if that is what you need. Overall, it works pretty cool so far for what I use it for. Ignore the numbers used for measuring on this item. It's only there to make the item more attractive to buy. I had to buy a nut for mine in order to install it, which wasn't very hard. I use mine along with a pressure gauge on a homemade low pressure 55 gal steel sterilizing/pasteurizing drum. I never allow the tank to exceed 2 psi. I use this item basically to begin relieving pressure when the pressure reaches 1-1.5 psi. I adjust it according to my pressure gauge. It is most useful to me really in that it is an alarm for me to turn the propane down or open more wide the main relief valve. And I'm sure it helps prevent the psi from exceeding the point that it is set at. I do believe that if I turned the propane all the way up that this pressure relief valve would not be able to prevent my tank from exceeding the 2 psi that I am able to set it at. This is not a proven fact because I have not tested it. I'm just judging by the amount of pressure that this valve actually relieves. It relieves enough pressure that I don't try to find a better relief valve. But if I wanted to be perfectly safe i would wish for a valve that relieves more pressure so that to be sure that it would be impossible to exceed the 2 psi mark that I can set it at using this valve.
Scritto da: Book Lover
Seems to work great! I had it set at 75, and it didn't leak at 50PSI.
Seems to work great! I had it set at 75, and it didn't leak at 50PSI. The spring loaded design looks like this design should be fairly robust and fool proof. I heard that it leaked for some people, but my application didn't. I used thread tape and never opened it all the way up, so it seems to work for me.
Scritto da: D. Morrison
Leaking Valve FIXED
Like others, my PRV developed a leak out of nowhere (it would never fully close). I removed it from the fitting and found that a small piece of thread tape had become trapped in the valve seat, causing the leak. After removing this and reassembling, the leak is gone and the valve operates properly. I would be cautious using this in a setup where any debris could enter the valve. The markings are wildly wrong, but with a gauge in the system this is easily set to low pressure (10 PSI). I do not know if it would work toward the higher end of the rated range.
Scritto da: V. Williams
Tested positive for lead content
This device seems well made and durable, but if you are intending to attach it to a beverage line or passing liquid near it that is intended for consumption, think twice. Having read about various factories mixing lead in their brass, I decided to buy a reliable lead testing kit and tested all my recent brass connector purchases. Four out of 16 items tested positive for lead content. This item was one with lead in it. Photo provided with a sample of many items I tested.
Scritto da: David Swift
Excellent piece of hardware
Bought for a safety valve on a science project. Nice fine adjustment. Doesn't leak until set point is hit. Closes tight when pressure goes below set point. Tested with some pretty fast transients and it worked great. Could have done without the factory installed thread sealant.
Scritto da: Alex
Does the Job
I use it as an emergency air pressure release to bleed off back pressure from my Medo LA45C pump for my guppies LOL. Set it to open at 1.5 PSI I actually dump excess air through a ball valve and huge 1/5" x 8" airstones so my backpressure on the ball valve is set to 0.5PSI . but if airstones plug up this valve opens to keep back pressure from blowing my piston rings on the Medo.

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