Compressor safety practices for Yong Heng and the like

Maybe buy a hose restraint to stop whipping in event of failure. Just added one myself. They are available in metal and nylon. Seems there have been two foster fitting failures noted recently so make sure they are quality fittings that are attached and locked in place. Fill slowly and don't exceed ratings of fittings/hoses/cylinders (seems some paintball hardware is sold for HPA use and possibly aren't strong enough). I use a slo-fill tank from Joe Brancato that is easier to control. If you don't have that then exercise caution when cracking open the tank valve and go slowly. Safety glasses. I'm sure others will have advice shortly.















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I put a piece of plywood between me and the compressor. Heres the deal. The yh makes a ton of vibration which lossens internal parts. Mine came apart inside the compression chamber and the company wouldn't replace it. Luckily I bought 3 year insurance from Amazon and they were kind enough to send me a check for 80 percent of the cost of the item instead of fixing it. In any case if the hoses were to vibrate loose instead of internal parts it could have injured someone. As stated by the last guy a safety cable would work or just a plywood shield. Check all connections for tightness b4 use and if your being anal replace the hoses with higher quality. Mine worked for 2 years before rattling itself apart. Hope u bought the insurance it's definitely going to get used if you operate it often. Good luck and don't let me disappoint you about the product. With the insurance I basically paid 40 bucks for 2 years of air. That's well worth it! 

As Raden said vibration parts can come loose every other fill I check tightness of what I can see and get to and I too have insulated with plywood me from air compressor. Never have I gotten distracted using a table saw so same rule applies to compressor , I set my celll phone aside and do what’s at hand then go on to whatever.

People worried too much. Yes hpa is dangerous if you dont know what you are doing. Never overfill that is number one. If you are filling to spec, you have nothing to worry about. Been using my yong heng for 2 years and never had a problem. How many times have you hear about someone's airgun compressor blowing up and killing or seriously hurting them. None. How many times you hear about someone dying from a car crash. Every day. Yet we get into our car each day and have no worry yet are so worry about a compressor blowing up. Just use you compressor the way it was designed to. Never overfill. Never modify it. And always bleed first before disconnecting from your gun.

People worried too much. Yes hpa is dangerous if you dont know what you are doing. Never overfill that is number one. If you are filling to spec, you have nothing to worry about. Been using my yong heng for 2 years and never had a problem. How many times have you hear about someone's airgun compressor blowing up and killing or seriously hurting them. None. How many times you hear about someone dying from a car crash. Every day. Yet we get into our car each day and have no worry yet are so worry about a compressor blowing up. Just use you compressor the way it was designed to. Never overfill. Never modify it. And always bleed first before disconnecting from your gun.

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Not that simple. People always think they know what they are doing until something unexpected happens. And there have been recent foster failures discussed on this forum that could have caused injury. Luck that they didn't doesn't mean you should say none as above. And to illustrate the point, just search youtube and find the video of a standard shop compressor tank exploding and putting a man in the hospital with severe leg injuries. Nowhere near 4000 psi for that case and if he had been bending over the compressor instead of just standing nearby it could have killed him.

Don't underestimate air pressure, especially HPA.

https://www.youtube.com/watch?v=KVP_A7eGYxw

Don't underestimate air pressure, especially HPA.



https://www.youtube.com/watch?v=KVP_A7eGYxw

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I did said hpa is dangerous did i not? No one said hpa isn't. It's like a bomb when it goes off. I've seen how tanks blowing up. Even mythbuster knock the valve off one tank and it flew into a concrete wall and still kept going. In the video the guy claimed his tank was old and rusted and he blames himself for not throwing it away. That was his problem. He probably didn't even have hydro test. Always hydro test your tanks and never overfill. We all put our guns which holds 3000 to 4500 psi of air right next to our face each time we go out to shoot. If they are very dangerous no one would use hpa. They are really safe to use. It's only when you don't follow the rules they become dangerous. People will try to overfill, modify it beyond what it was designed to do, don't hydro test and keep using same tank after it expires. There will always be that guy. Don't be that guy and you have nothing to worried about. 

"you have nothing to worried about."

There you have it.

use protective googles everytime

if something starts to leak shut the compressor down but be able to do from distance

dont use cheap fittings

dont use cheap fill hoses

use a proper filter setup to avoid moisture in your tanks

the two moisture seperators are very small, will heat up while filling tanks and start to seperate worse

use a checkvalve so that your tank cant pressure up the yh (some yh have check valves but they are not reliable)

if your tanks are inspected and good to go, you dont have to worry much about them. why should you ? it is only a different fill source instead of the one in the shop

I've had three hoses burst. Two were micro-bore and supposedly rated for 630 BAR working and 900 BAR test pressure. They only burst through pinholes. The other one was a normal type larger diameter one with a full-length spring armour. It leaked between the layers, delaminated and the outer cover blew up like a balloon inside the spring armour. I bled the line and removed the hose and set it aside. About 1/2 hour later I heard a loud bang. The hose had somehow resealed it's self and did not depressurize when I bled the line. Lucky it was not in my hand when it blew. They were all on new hoses being pressurized for the first time. No more drama than a loud pop. I have found that if they don't burst on the first use they seem to be good. Installing a check valve between the hose and tank interface has a number of benefits including preventing the hose from flailing around if a coupling lets go downstream. Other than that, I don't anticipate any other safety issues if caution and common sense are practised. Unfortunately, common sense is not so common these days. This is a picture of the hose just before it self-detonated.

For me the safety measure is to stay away from the compressor while it is running . In doing so, I have to use auto shut off.

I use ones like these. https://www.aliexpress.com/item/32658889691.html?spm=a2g0o.store_home.productList_114217401.pic_6 They are cheap and effective. If you add one anywhere in your line, you will need a bleed valve upstream from it or you won't be able to decouple anything. Usually, you can replace an existing Foster fitting on your fill adaptor with one of these. There are other options for different filling setups. Here are some of my solutions.  The male to male ones can be reversed to flow in the opposite direction.