Questions tagged [air-compressor]

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2 answers
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Can I remove bulk moisture from a vacuum line with a water separator used for compressed air?

I milk a cow with a pulsating milk machine that uses a fair amount of lpm/cfm to operate the milker. My vacuum system has a 5 cfm vacuum pump attached to some brass fittings then to a pipeline made ...
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  • 111
0 votes
2 answers
59 views

Re-using (putting back into service) a Craftsman 33 gal 165 PSI air compressor

I own a Craftsman 33 gal 165 psi upright air compressor that during a move we emptied the air out using the 'ring pin' at top. It has been sitting for over a year in the garage and now I need to start ...
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17 votes
4 answers
4k views

Is it safe to connect two air compressors together to increase the air flow output?

I have two air compressors with about 8 bar max. pressure and 150 liters per minute output at 2 bars. Now I need min. 220 liters per minute at 2 bars and think I need to connect the two compressors ...
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0 votes
0 answers
54 views

How do I fix my air compressor tank that is constantly leaking?

I have an air compressor model WL660501AJ which had the 1/4 nipple snap in the tank resulting in an air leak. I removed the remaining portion and tried to replace the pipe with plumber's tape on the ...
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  • 113
-2 votes
1 answer
126 views

Why do compress air cans always seem to avoid mentioning their main use? [closed]

In the last couple of years, I've finally started buying cans of compressed air to blow out the dust from inside my computer, instead of using my lungs as I have done in all the years past. It feels ...
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0 answers
55 views

Rings and main seal for Speedaire 1z945 air compressor

I have an old Speedaire 1z945 air compressor that I'd like to put back into service. I can't seem to find a ring and main seal kit for it. I also can't find any technical specs on it. Does anyone know ...
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2 votes
5 answers
159 views

Why is my compressed air tank rated to 200psi @400°F? Why the temp rating?

The title says it all, I'm just curious why my air tank is rated for 200psi at 400°F. It's a 30 gallon steel tank. Wouldn't it still be able to hold 200psi at any other normal temperature? Like 100F ...
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0 votes
0 answers
42 views

Should I drain the shipping oil from my new compressor?

I've just bought a small home-use air compressor, that came with a bottle of oil with a label "Warning, please add proper oil before starting". There was another label indicating to fill ...
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1 vote
2 answers
390 views

What's the point of the tank in an air compressor?

Air compressors, including portable air compressors, arrive in at least three varieties: a handheld air compressor, for car tires, a block air compressor, without a tank, still for car tires, but ...
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  • 485
0 votes
1 answer
95 views

Copper pipe drain hole attachment to blow out water line?

Trying to winterize better. Copper pipe feeds normal garden water hose. How would one attach an air compressor Attachment to thread on here to blow out water line? to this to blow out? If you ...
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  • 141
1 vote
1 answer
65 views

Replace Unloader Line on Air Compressor

I am trying to replace a broken unloader line on an air compressor I received from a family friend. After pulling off the cover it looks like a mouse may have chewed through the teflon line. I have ...
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  • 113
1 vote
2 answers
325 views

Trying to plan a pressure-tank + air compressor for raising home water pressure

In my place, the city water system provides the water at pressure of between 2BAR - 4BAR. We live on the 3rd floor, with water boiler on the roof (5th floor) so the hot water are going up to the roof ...
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  • 11
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0 answers
32 views

Are compressor pressure switches adjustable or repairable?

I have a craftsman air compressor. It's about 20 years old, but for many years now, if I let it run on it's own, it will always blow the pressure relief valve. I don't need a lot of volume, so I ...
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  • 111
2 votes
3 answers
1k views

Does CFM of a compressor increase if pressure is reduced?

In product description of the compressor, CFM is mentioned to be 185 Liters per Minute. And pressure is mentioned to be 115 PSI. Lets say, If I only need 30 PSI for my spray gun but CFM required by ...
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1 vote
1 answer
484 views

Small compressor and mini hvlp spray gun vs powered spray gun

I am starting a DIY project of painting my cycle frame. After experimenting with spray cans I realised that it's very expensive and also pressure from can is not consistent. Due to limited budget I ...
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2 votes
4 answers
2k views

How can I safely leave my air compressor on at all times?

I have a small 1HP air compressor - Rolair JC10 Plus 2.5 Gal. It would be very convenient to leave it plugged into AC power at all times so that any time I use it, if I bleed it down it will kick in ...
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0 votes
2 answers
427 views

Refrigerator compressor for pond aeration?

I'm contemplating salvaging a used refrigerator compressor to use to aerate my pond. A new compressor actually intended for pond aeration is 600 to 900 bucks. There are several good youtube videos on ...
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-1 votes
1 answer
178 views

Basketball doesn't get pumped [closed]

I have a new basketball, I have owned it just several months. When trying to inflate it with the pump, it feels like it gets inflated and deflated at the same time, so I either end up with less ...
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0 votes
2 answers
294 views

How safe is it to use old air compressor?

I have air compressor 91915294 craftsman. I want to use it for spray painting. I bought it use and not sure how old it is. You can see on photos that it has a corrosion but i tried to sand it a bit ...
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  • 293
1 vote
2 answers
972 views

Confused about 230V Air Compressor Wiring

I just got an Ingersoll Rand SS4L5 230V Standalone Air Compressor, and I need some spot-checking on my wiring configuration from my panel. First let's get the details out of the way: I'm not sure ...
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-3 votes
1 answer
152 views

Air compressor first use - plug needs to be replaced? [closed]

I was wondering if anyone could help me with this problem. My brother bought an air compressor recently and found this note. What does that mean, which plug should we replace? This yellow one with two ...
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0 votes
2 answers
923 views

I have an 8 gallon compressor can I use for a small project or should I use an airless sprayer?

I have an 8 gallon compressor (3 cfm @ 40psi) and a small dresser to paint. Will this suffice or should I go with an airless sprayer? Thanks!
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0 votes
1 answer
94 views

Have I correctly identified this part on my air compressor?

I have a Blue Hawk model 0300812 air compressor purchased several years ago from Lowe's. Sometimes, but not always, I get air leaking from here: It doesn't leak from around the threads, as one might ...
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0 votes
0 answers
87 views

80 Gallon Ingersoll Rand fell over, is it safe to use?

I have a new Ingersoll Rand 80 gallon tank compressor that fell over while we were unloading it off the fork lift. It’s really unfortunate but luckily it was still on the pallet so when it fell it ...
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1 vote
1 answer
62 views

Air Pressure and Ball Valves [closed]

I'm making my own airsoft gun and I need a pressure regulator for my HPA tank. It outputs 800 PSI which I need to bring down to about 130 PSI. Problem is, air pressure regulators that support 800 PSI ...
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0 votes
2 answers
222 views

Want to drain/change compressor oil, but there's no outlet

I have an air compressor; the brand was supposedly Karson but it's actually a rebranded Fiac compressor. I wanted to change the oil; but I realized that it has a window-level, no actual dipstick and ...
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2 votes
4 answers
3k views

Why won't my air hose engage the quick connector on a Fortress compressor?

I recently purchased a 6 gallon 175 PSI compressor from Harbor Freight. The compressor works correctly, but I can't get the fitting on the hose to index the quick connector fitting on the compressor. ...
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2 votes
1 answer
528 views

Can you use/store your air compressor (horizontal cylinder type) in vertical position?

I have this Air Compressor. Can I remove the handle and store it and use it in vertical position (compressor facing me for easy access)
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0 votes
0 answers
45 views

Find adapter for an air hose

I bought this adapter to easier fill my car tires with air: (https://ebay.us/vtTY9x) However, the outer diameter of the left side is 1/4" and it has no inner thread. I wanted the left side to be a ...
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  • 103
1 vote
3 answers
970 views

air-compressor size for continuous duty

What size air-compressor is needed for continuous duty? I'm trying to use a 90psi needle scaler to remove paint layers from an outdoor wrought-iron trellis that has lots of nooks and crannies an ...
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  • 788
1 vote
0 answers
627 views

Causes of a framing nailer driver stuck in down position?

I have an Hitachi NR90AC5. It's oiled and has adequate pressure. There's something that's gone wrong with it recently, where it sometimes double fires (in single fire mode) and then the piston gets ...
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  • 1,512
0 votes
1 answer
39 views

AC compressor makes strange constant noise, won't run

My Comfortmaker AC compressor outside makes this strange sound when I turn it on, and the fan in the compressor doesn't run. https://vocaroo.com/i/s0rx9CsN4XaQ Every few seconds it also makes the ...
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  • 103
2 votes
3 answers
226 views

Is it possible to store air compressor filled without damage from water?

I'd like to keep my air compressor filled for quick tire top-offs, like at gas stations. The manual says to empty the tank after 4 hours. How do gas stations avoid draining this often? Is it ...
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0 votes
3 answers
663 views

Using PEX Fittings with Nylon Tubing

I'm planning on plumbing my shop for compressed air and I think I want to use nylon tubing, like what comes in the RapidAir kits. I don't want to use PVC for obvious reasons, and though I think PEX ...
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  • 101
1 vote
1 answer
947 views

My Porter-Cable Air Compressor is drawing too many amps

I recently was given a 6hp 25 gal Porter-Cable Air Compressor (CPF6025VP) that kicks out my 20 amp breaker at around 80psi and will not restart with even 20 psi in the tank. I measured the amp draw ...
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1 vote
1 answer
797 views

Is a tiny dent in a compressor tank a safety concern?

I saw some questions and answers on air compressors so I thought I would ask one: I just purchased a Chicago Pneumatics 21 gallon compressor and I noticed a tiny dent about 3+ inches from the upper ...
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0 votes
2 answers
52 views

Air compressor valve going off

I have a small air compressor for various small tasks. Lately when I plug it in and turn it on, it starts working to fill the tank and once it's full, I hear the valve releasing the air thus the ...
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  • 3
1 vote
2 answers
4k views

Disconnecting quick connect fitting while hose is pressurized

Tank is pressurized at 90psi. Attached to 50 feet 3/8 hose. Tool end of hose has a standard quick coupler. ( so its closed ) Is it "okay" to disconnect the male quick connect fitting from the tank? I ...
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-1 votes
3 answers
973 views

Air compressor makes LEDs flicker

About 2 years ago I converted an automotive shop from florescent to LED T8(120 volt). They worked great until we changed the compressor today to a new more efficient and more powerful one (both 240 ...
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1 vote
1 answer
1k views

Water pump as air compressor? [closed]

I've googled this, but found no satisfactory answers. I've found a diaphragm pump on amazon for $20, but it has one problem- it's designed for water. I specifically need a diaphragm pump/compressor, ...
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0 votes
0 answers
97 views

Air compressor won't restart BTFP01012

When my dad's BTFP01012 air compressor reaches 150 PSI, he uses the relief valve, and the unit stops working i.e. turns off and does not restart to replenish the air. So he replaced the pressure ...
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  • 101
1 vote
1 answer
507 views

What pressure rating should a replacement safety valve on a compressor have?

The safety valve on my compressor is leaking air. I found plenty of places that have replacement valves and they look easy to replace. My question is how do I know which one to pick they all have a ...
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1 vote
3 answers
3k views

Powering a 240V 15A air compressor with a 6-20 plug

I have an air compressor with a 240V 15A power requirement and a 6-20 plug (looks like normal US plug but with one of the flat ends turned at a 90 degree angle). Instruction manual can be found [here][...
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  • 163
6 votes
2 answers
16k views

How can you determine if an air compressor tank is safe?

I've recently learned that old air compressor tanks can catastrophically fail. I can't find anything about the average service life of a tank, but it appears the ones that do explode are typically ...
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1 vote
2 answers
159 views

AC Unit Freezing

my AC unit was frozen up Saturday so I went outside, and cleared all the debris (leaves, pine straw etc) from around the base of the unit, and off the top of the unit and left the unit off for about ...
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0 votes
1 answer
383 views

Nail gun leaking air

What can I do if my nail gun leaks air through the chamber directly opposite from where it shoots nails? The gray part in the picture. Can it be dangerous?
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  • 6,611
0 votes
1 answer
67 views

Compressor hose line

Would having a 20m hose connecting my compressor shed to my workshop be ok? I was planning to have the hose outside the problem is temperature differences at day and night and rain and things like ...
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  • 129
0 votes
0 answers
916 views

How to wire stationary air compressor

I am considering purchasing a stationary air compressor to install in my home’s garage. It will require a 220-240v circuit. Currently, there is no existing circuit in my garage that can power the air ...
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