I did take mine apart and visually inspected for damage to the diaphragm, but it appeared to be ok. If the tank pressure is so unreliable, how can you tell how full the cylinder actually is? 2022 The Arena Media Brands, LLC and respective content providers on this website. It appears the tube was installed using plumber's Teflon tape as were all other fittings on the regulator. Don't use it much. I have a nitrogen tank regulator that isn't registering the cylinder pressure. @anonymous: Sounds like the safeties are blown. You could even go into a local welding supply and they might replace the gauge for just the price of the gauge. If you have a 5 lb liquid CO2 that weighs 12 lbs full and you weigh it after using it a while and it weighs 9 lbs, you have used 3 lbs of the 5 lbs of CO2. The raise in LP is random, I find 50 - 65 psi in the morning and when coming home I find it at 40 psi stable. In the case of SPE, some regulator options can mitigate this phenomenons effects better than others. If pressure is rising beyond your set pressure, this condition is most commonly attributable to one of two issues. The application of the wrong type of regulator is a common mistake that can compromise your process. Another solution may be to switch from a spring-loaded regulator to a dome-loaded regulator. I just changed my argon co2 mix bottle with one from my local welding supply shop. You might have a bad diaphragm in you regulator. Carbon Dioxide is one of the more versatile gases. They can be very tiny bubbles that look almost like foam from small leaks or larger bubbles from larger leaks.
It's commonplace in other industries to look for leaks like you would in an innertube using soapy water. That's why you charge more, to cover those expenses. check out the.
Now, my problem is that it's leaking so badly from the inlet connection thread. If excessive regulator creep suddenly happens it is probably caused by dirt on soft seat or scuffed soft seat. These are just a few of its uses. The "tip" that meets with the bottle should have a hex shape on the end that a socket wrench should fit over.
What do I know I am just an electronics technician. This kind of pressure drop is also known as droop. Some of the add-ons on this site are powered by. Within 12 hours, the gauges are back to 0. The whole system is hooked up to a solenoid and when I unplug the solenoid, the Low pressure raises. My regulator seems to say its empty yet the pressure bubble still shows flow when the seleniod trips. This is caused by the effort required for gas pressure to close valve. When the inlet pressure drops, the outlet pressure can increase beyond your desired requirements. All times are GMT-6. Your supplier should be able to help you size your regulator appropriately for your application. I have tried with a pipe wrench and with large slip-joint pliers. The contaminants create a fine gap between the regulators seat and poppet, which can unintentionally allow system media to flow across the seat, resulting in unwanted pressure increases downstream. Simply look for the bubbles. In its simplest terms, if you need to control pressure from a source before it arrives at the main process, then you need a pressure-reducing regulator. the third one worked for about 5 minutes. The nut and nipple should seat without any Teflon tape.
Pressure regulators are designed to control system pressure while accounting for changes in system parameters. You will likely see either a drop or increase in pressure downstream, and each of these instances can compromise the quality and safety of your process. In this blog, we will walk through a simple three-step process you can use to troubleshoot issues you may be experiencing with your regulators to help reduce regulator failure. I+..
is a totally safe liquid that is applied to places where two pieces come together. I cannot get the tube out of the regulator. Make sure that it is left handed. If pure oxygen or high-pressure gas comes in contact with oil it can ignite and cause a fire. As far as the teflon tape, it is supposed to be used for threaded connnections going into the regulator body. My take on it - NORMAL if you can find no leaks in your fittings. Small leaks can also happen at any place where two parts come together. There's no way of knowing if it's leaking a little or not.
Removed the inlet from my regulator and installed the one i bought online. When the solenoid is off (whole system off) , my LP raises. i say buy a new one, for one not worth the safety issue, and getting one repaired is too costly noe days, unless its a two hundred dollar reg., the 50 dollar one will do fine, or pick up a low end flow gauge for 75-85 dollars.repairs should be done by trained proffesionals for safety reasons, unless your changing a nipple of something small like that. When it comes to finding a leak in high-pressure cylinders or regulators, do not use soap. A new regulator will have small amount of regulator pressure creep from set pressure while gas is flowing to slightly higher pressure when flow stops. You are lucky Hank. When I did that, the tank pressure gauge held for over 24 hours. "It's when you know you're licked before you begin, but you begin anyway and you see it through to the end no matter what." Tractor Supply had one at $68.00 and it was an import! That is a metal to metal connection. You might want to take your regulator to a local welding supply and have them hook it up to a full cylinder and see what happens, while switch off regulator still gas coming. This would repeat. It has been working fine ever since. The gas as a result is going fast, and at 25.00 a fill, it is getting more expensive than bottles. If this is your first visit, be sure to _> f"G.
This houses a second regulator or a "stage." You might have to replace the nut and nipple if they are severely scarred from the wrench and pliers. The gauge on the right is usually the cylinder pressure that tells you how much gas is left in the tank and reads usually from 0-400 PSI.
I'm guessing the 300DX I get this week will be the same way. If you make the mistake of putting a low-pressure gauge where the high-pressure inlet is, the gauge will explode. % Certainly soft, not brittle Any other suggestions on how to try and track down the leak?
Will stay at 200psi when the machine is not running.
If you are using a small amount of co2 for plants there still could be some liquid co2 in the cylinder. Never use oil on any gauges or regulators. If it leaks at the cylinder you could have a bad thread on the cga fitting or the thread on the cylinder valve. If there is a leak you can sometimes hear it or feel it coming from the regulator. To this day it is still my favorite story. Use a ratchet with the longest handle you have and use a piece of pipe over the handle of the ratchet if needed for leverage. turn on bottle and low pressure goes nuts and air starts coming out the release. If the pressure gauge does not show pressure and is bad they can replace it.
I am not sure if this has been posted before but we are having a problem with our Dual stage Co2 regulators. What I usually do when I have a stubborn nipple is to push the nut back to the body of the regulator to expose the end of the nipple that goes to the tank then find a 6 point socket that fits over the end of the nipple. If these common issues do not appear to be the source of your regulator issues, a more complex issue may be at play.
It can have a little Co2 enough to register flow but not enough to show on the cylinder pressure side. That is one of the reasons they have different fittings. This leads me to believe it is in the diaphragm, low pressure gauge or my outlet valves.
You are using an out of date browser. x][q~@2~Z$1l _U}$dwuo}|? @anonymous: There is locktite placed on the threads from the factory that make it difficult.
Sure, ad-blocking software does a great job at blocking ads, but it also blocks useful features of our website. Industrial fluid system processes rely on precise fluid temperature, flow, and pressure settings to operate as intended. JavaScript is disabled. I'll try and narrow it down with a leak detector, but it is obviously a pretty slow leak My regulator appears to be a cheap one so I doubt I can find a rebuild kit. Checked flow coming out of regulator same thing little to no pressure or volume. The Arena Media Brands, LLC and respective content providers to this website may receive compensation for some links to products and services on this website.
ironhorse64 (author) on September 22, 2012: @anonymous: The nut and nipple will not fit onto a liquid argon.
I cannot hear any leaks, and im thinking i could hear that big a leak. If you wer going to use a regulatr a helium or nitrogen would work. I pulled apart regulator seat and seals look great.
Welding supply distributors should carry the gauge for your regulator. Be careful not to get a flow regulator confused with a pressure regulator. I get hardly any volume or pressure from my welding nozzle. Then his lights came on and realized the warning was "USE NO OIL." wrap the threads of the new gauge with Teflon tape. zwS ~!CnPz[LJrS?Sk {l)/b6f00D`4a\ a0gQ&$911NQ[ /F""$FEH(OF)LR#g).KtC<9$[6"N7sB,1 E 'nFlr Crx, I have the exact same gauge set as you, when I close the bottle valve the pressure gauge slowly drops, takes an hour or so to read 0 psi. ironhorse64 (author) on October 21, 2012: @anonymous: Oxygen regulators have a different fitting than what an argon bottle will accept. Sounds to me like you have a cylinder with a dip tube fitted. How much flow can I expect to come out of an E sized tank that has a pressure of 900 psi? Your regulator supplier should be able to help guide you toward making the right selection suited for your applications needs. If pressure is dropping beyond your set pressure, the most common cause is that your regulator is undersized for your applications flow requirements. TIG consumes gas QUICKLY.
CO2 is extremely cold. Carbon dioxide is pumped into the cylinder as a liquid and the pressure reaches only about 850psi. The outlet pressure gauge is working though.
Weldequip has sold a bunch that will also work with Argon mixes with an adapter. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. This page was generated at 03:20 PM. Remember to be careful, do not use oil, and replace gauges one at a time with the exact pressure reading gauge as the stock equipment. When this happens the diaphragm is shot and needs to be replaced. Check the labels. I live in the northwest and where I work we do the install for free and just pay for the gauge. Apply it at the base of gauges, inlet nipple, tank nipple, or any place you feel needs to be checked. Back-pressure regulators can effectively control upstream pressure within a sampling system process linewhen set up correctly. Is this correct? Just hit the pedal and watch the gauge. I am using co2 to run a mig welder, at the regulator it shows less than 2 psi but at the mig gun 35 cfh (no orifices in place )what would cause this note we have 15 other welding machines that are set between 30 - 40 psi and the cfh at mig gun is close to what the regulator reads, On my 450 victor oxygen regulator when I open up the oxygen tank the regulator low side goes crazy the oxygen pours out of the safety valve what is wrong please and thanks. It will not budge. Over time gas flow will erode groove across orifice seating surface and across soft seal that mates with orifice. !cp-$C|dDW3NTn?$=)%VUYMq,]p&00YP:@j^bP{{~[7mH$Xcx) He had never heard of it either so I returned to the phone and asked the customer what he was going to use it for. Hope that helps.
If you look at the label you will likely see the soap is made out of some sort of oil or petroleum-based product. Even though this flow gauge looks radically different than the one previously discussed, its operation is the same with one exception. did this to 3 gauges. What's the story? Given that I can't find it online, the answer to this question must be staring me in the face, but does the cylinder pressure gauge on an oxyacetylene setup tell me how how much gas in left in the tank?
And more machinery than you can shake a 7018 rod at. I went looking for a replacement gas regulator for a soon to be repaired Smith and found nothing, nothing under $74.00. Argon, Nitrogen and Helium all have the same fittings and regulators can be interchanged. This CO2 regulator is used in high flow applications.
use some common sense for your situation. Wow, great replies. The acetylene regulator does the same thing, but the pressures are substantially lower. I also have a homebuilt beer kegerator setup that I put together. That combined with gas lense torch parts may help cut down on gas usage and waste. The tank pressure gauge seems like it is always almost full and then before you know it the tank is empty. A two-stage regulator will have a bulb on the back. Strange that you have so many of them. https://www.swagelok.com/en/blog/troubleshoot-common-regulator-problems.
That's why the regulator is freezing up, the initial burst of liquid evaporates giving you gas then everything fills up with liquid/dry ice making strange noises. We have a nitrogen regulator and the male that fits into the nitrogen tank is worn out.. How do I change it? Ice is usually from the cold oxygen freezing moisture on or around the regulator.
CO2 or carbon dioxide is a colorless gas made up of carbon and oxygen. Learning and practice does not always come cheap or free. You really cant do much with the regs. I've never had one go bad (I crack the tank open VERY slowly so as to not shoot the ball bearing out the top of the plastic flow gauge.)
Without the liquid to make the gas the cylinder pressure falls fast. Speak with a pressure regulator specialist. Having problems with a high pressure nitrogen regulator. Your ability to identify the cause of unexpected pressure changes is helpful in rectifying the issue before it becomes a bigger problem. If you have determined that this is what is causing your issues, move on to Step 3. What do you think is going on? Droop is an issue for every pressure-reducing regulator. Any concerns or suggestion what i should do in this case? I just broke a second argon flow meter in just about that number of years. It might look different than the one you have but they should have something that will work. This process is continued until the liquid is almost gone. The dropping of the weight is an example of the high pressure of the gas coming in contact with the oil. It can be used as a shielding gas for welding, carbonation for sodas, dispensing beer, and even making dry ice. If there is a gauge that reads from 0-30 psi with a red zone after 15 psi that will be your outlet pressure. It is not a good idea to run any gas into a regulator that has been used for oxygen.. Can I use an Oxygen gauge on a Liquid Argon Bottle for regulating. I would have gladly paid $50 for a replacement. Dome-loaded regulators are more resistant to changes in flow and can help better maintain set pressures in applications where there will be many flow variations. If you have an outlet gauge on your regulator and it is "pegged" I would invest in a new regulator depending on how much you paid for your regulator. When there is a high volume of oxygen used the body of the regulator becomes cold and the ambient moisture can freeze. To give you the best possible experience, this site uses cookies. Creep can be problematic and dangerous if your downstream components are not rated for the pressures that are creeping across the seat. For example, if the regulator set pressure is at 70 psi, and flow increases without anything being done to the regulator to compensate, it is likely that pressure will drop below your 70-psi target. Keep all oil products away from regulators. This page was generated at 04:20 PM. With years of use creep will increase until it is excessive to free flow were gas flow is only restricted not stopped. These regulators take a tank pressure of 2,200 psi and drop it down to where the gauge reads in "CFH" or "cubic feet per hour." In the morning I find it at 60 psi. If your regulator supplier is knowledgeable about additional areas of fluid system operation, they may be able to help you perform a more robust evaluation to identify any issues. There is a certain amount of oxygen residue left behind and can result in a fire. What is causing the problem?
I have an Acetylene regulator, got it from ebay. These regulators keep the outlet pressure at a consistent level even as the cylinder pressure lowers. The fins on the flow gauge create more surface area so that the flow gauge allows the ambient air to warm the regulator, thus creating CO2 gas.