Western Enterprises VN-500 Flowmeter Nitrogen Purging Regulator w/500 PSI Test Pressure, BRASS
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Make a replacement request with the manufacturer.
A technician can use the TST (TEST) setting to check for leaks in a closed system by injecting a regulated 500 PSI into it. You can adjust the charge by feathering the J-connector if you don't want the full 500 PSI to enter the system. bleed off the pressure after the J-valve on the nitrogen bottle (rapidly opening and closing the valve) or even bleeding off the pressure after the J-valve The valve has been shut. This would be the preferred method for retrofitted systems that were not designed to operate at 500 PSI. If you're primarily a cold-weather worker, (i.e. , on R404A systems) you'll almost certainly need the Model VN- The head pressure of R404A is usually around 175 PSI, so 250 is a good number. The Model VN-R410A, on the other hand, is designed for newer air conditioning systems that use R410A. It's perfectly acceptable to use 500 as a number. I wouldn't pressurize a system to 500 PSI because it's pointless. A pressure of 150 to 200 PSI would be sufficient for a thorough leak check. Remember that all you're looking for is a significant drop in pressure over time while also compensating for changes in ambient temperature (the preferred method is to allow the system to hold pressure over night). You most likely have a tight system if the pressure hasn't changed more than 2 PSI in the last 24 hours.
A different adjustable regulator should be obtained.
Purge flow rate is 25-35 gallons per minute, according to the manufacturer. The braze flow rate is 3 to 35 scfh. 6 scfh.
Selected User Reviews For Western Enterprises VN-500 Flowmeter Nitrogen Purging Regulator w/500 PSI Test Pressure, BRASS
br>To put it simply, this is something I've been waiting for: I did a line set today and only used ONE gauge! There will be no back pain if you don't use any wrenches. Changing the hoses is the first thing that comes to mind. It's a colossal amount of weight! SOLID! Before connecting it, I ran it through a series of tests. Actually, it's only an open-ended question. the hose has come to an end The braze feature was extremely useful. In addition, the purge and test functions were excellent. The ability to complete all three processes without changing gauges, hoses, or making additional trips proved to be a significant TIME and EFFORT saver. To control the pressure, make sure the test function is throttled through your test gauge manifold. After reading the various reviews, I decided to purchase the 500 PSIG model. If you're throttling with your gauge set, this makes sense, and it's also safer because you're not introducing a large slug of pressure all at once. Before disconnecting the gauge from the N2 tank, make sure there is no residual pressure. Overall, I would HIGHLY recommend this product to any PROFESSIONAL HVAC technician or installer. It is, without a doubt, fantastic! If I had the chance, I'd give it 37 stars.
Then you get frustrated and weld without nitro (shame on you). br>I'll explain what I'm talking about. br>If you don't have something similar, you'll need to turn your regulator down to the lowest setting. 6 psi, then check to see if it's flowing properly, weld, remove your hose, disconnect the flow rate device, reconnect the hose, and pressure test again. Alternatively, you can go from braze to test and back to braze by clicking. br>br>The entire company is considering making the switch. br>br>As an added bonus, it's smaller than both your output and tank psi regulators.
This is the most user-friendly regulator/flowmeter you'll find. I purchased a VN-VN-VN-VN-VN- 500 due to the increasing popularity of newer azeotropics like R- 410A. The VN- Purging, flowing just the right amount of nitrogen to braze with, and quickly pressure testing your work with any pressure up to 500 psi are all made simple with the 500. This regulator is designed for HVAC technicians and anyone else who needs to use nitrogen for brazing or leak testing. It is not necessary to use any tools to connect to the J-shaped connector. Any size nitrogen tank should have a valve; It's simple to tighten by hand, and it's well worth the money.
It's simple to purge the cooper lines and braze them. This is a simple nitrogen regulator to use. It's simple to purge the cooper lines and braze them. The construction is sturdy, and I expect it to serve me well for many years. The only drawback is that the test mode on mine only goes to 485 psi, whereas my company requires 500 psi test images, so I'll have to buy something else in the future. Look elsewhere if reaching 500psi is important to you.
Simple to work with. Connects to a nitrogen bottle in a matter of seconds. Because it isn't bulky, you can leave it on your bottle while still putting it in the bottle rack. The brazing setting is ideal for soft copper brazing, and the testing is simple. I would strongly advise anyone working in the field to use this regulator.
I've broken a lot of my old regulators due to tanks falling over, but this one is very sturdy, and the gauge is small and won't break as easily. In addition, the purge setting is ideal; I've had no problems brazing with it. This must be used in conjunction with a gauge manifold in order to reduce the pressure from 500 psi. Without a doubt, the best regulator I've ever owned.
Both of these are extremely simple to break. Especially when working with new people on a regular basis, this thing has held up admirably so far. Since I bought it, the price has gone up a smidgeon. But if I had to, I'd buy it again.
Finally, a regulator that was designed specifically for HVAC applications. It's so simple to use and quick. It's almost as if you're playing a game of chance!.
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