Oh, and for the $15 bucks or so, you’ll normally get a new air gauge to go with the new regulator.Speedaire Air Compressors Parts & Maintenance What I’d do then if I wasn’t sure about the replacement, is remove the regulator from my compressor and take it with me to the hardware store, to fine a comparable replacement.īy comparable replacement I mean a new regulator that has the same thread size, the same pressure range, mounting method, and a similar body size to the old. The hardware or specialty store where the compressor was purchased likely does not stock parts.Įven though regulator spare parts can be found on line, by the time the shipping is included in the equation, buying the part may cost equal to or more than the cost of the whole new regulator. In my case, I cannot get excited about tearing down the air regulator when it is leaking, to try and figure out what part has failed, then have to spend the time to try and source the part and acquire it. Over time, these may become brittle to, and allow air to leak. There are typically a couple of “O” rings inside of and on the stem of the regulator.
SPEEDAIRE LIGHT COMPRESSOR CRACKED
Not the regulator diaphragmĪ regulator leak may not mean a cracked diaphragm. The diaphragm may only leak at higher pressure settings.
SPEEDAIRE LIGHT COMPRESSOR CRACK
At lower pressure settings, the stresses involved with regulating the air may not be enough to force the crack open in the diaphragm. Regulator not leaking all the time?Ī cracked diaphragm may not leak all the time. In time, the diaphragm will crack, and then the regulator is leaking. The higher the air use, the more the regulator diaphragm is stressed in the process of regulating the air. Typically some sort of rubber compound, the diaphragm can be attacked by oil and crud in the air stream from the compressor, causing it to lose flexibility. This regulator part flexes constantly as the compressed air flows through the regulator body, fluctuating to exert more or less pressure on the internal spring of the regulator as it works to maintain a constant downstream air pressure at the regulator setting. The item inside the regulator that keeps the air flow from leaking out is the diaphragm. Can you get really good quality components when the whole regulator may only cost $5 to make? Nope! If the regulator sells for $15-$20 retail, it’s a pretty good bet that the actual manufacturing cost of the regulator is way below that, perhaps in the $5 range or even lower. Typical general purpose regulator with gauge.
Sometimes the regulator is leakingĪ new, general purpose regulator, can usually be purchased for $15-$20. That leak will continue until the pressure downstream of the regulator is at the same pressure level as the new regulator setting. If you have an air line plugged into the coupler on the compressor, and you dial the pressure setting of the regulator downwards, higher pressure air from the air line can be heard leaking from the regulator. If the application was pressure sensitive, a burst of too high pressure air from the line may cause a problem. If regulators did not self-relieve, when the pressure setting was dialed down from 90 PSI to 20 PSI, for example, even though new air flowing into the air line should be at 20 PSI, the air already in the air line is at the original 90 PSI. That purpose is to allow higher pressure downstream from the regulator to bleed back up and out of the regulator when the regulator is adjusted to a lower downstream pressure. This means that they can leak on purpose. General purpose air regulators are typically relieving regulators. Understanding that general purpose air regulators are sometimes supposed to leak may set your mind at ease. Sometimes a compressor regulator is leaking. Hey! This site is reader-supported and we earn commissions if you purchase products from retailers after clicking on a link from our site.
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