How to reduce vibration in compressor air line?

The amount of restriction in a hose or pipe is directly proportional to the length of the pipe and inversely proportional to the cross-sectional area of the interior of the pipe. So a foot of 3/8" i.d. hose has about the same restriction as four feet of 3/4" i.d. pipe. In other words, if the total pipe run is 40 feet of 3/4" pipe plus 2 feet of 3/8" id hose, 17 percent of your pressure drop is in the hose and 83 percent is in the pipe.

Of course the hose connection between the compressor and pipe becomes totally irrelevant once you attach 50 feet of air hose from the pipe to your air tool!

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• TP Tools

All the major hose manufacturer's market low pressure general purpose rubber hose for air, water, oil and fuel lines. It is available in sizes up to at least 3/4" ID with "push-on" end connectors in various configurations that are easily attached in the field. I use a 5/8" ID Gates 10LOR "Lock-On" rubber hose in about a three ft length from my compressor tank to my wall piping. The rated working pressure is 300 psig and I use it to 175 psig. I don't remember where I got it. I know my local NAPA carries Weatherhead hose and fittings. They make a 3/4" neoprene cover/nitrile inner lining hose for push-on connectors. The hose is H101 General Purpose hose for compressed air and other applications. The working pressure is 350 psig and 212 deg F max with a burst pressure of 1400 psig. Check with your local NAPA to see what brand they carry. You can buy it by the foot. You could go with high pressure hydraulic hose but it is way overkill for a standard pneumatic system less than 200 psig.

Rod

Temperature and pressure ratings of the hose will, obviously, be WAY above your requirements.