Reply To: Did I make a big mistake? I bought a Yong Heng compressor from China!!

Forums Air Tanks, Pumps, Compressors, & Filters Did I make a big mistake? I bought a Yong Heng compressor from China!! Reply To: Did I make a big mistake? I bought a Yong Heng compressor from China!!

Link

TheIceman
Participant
Member

Hello, everyone!  New member here. I bought the Yong Heng compressor about six weeks ago. Just wanted to share a couple of things. I have only used it twice, because I fill a 60-minute tank. That tank lasts a long time. Each time, I have filled from around 2900 psi back up to 4400 or so. It appears that restricting the air flow can bog down the compressor enough to shut it down. My solution is to ensure the valve on the SCBA tank is open a couple of turns, as well as use a check valve male fitting on the tank side of the connection. My Stikman PCP fill station came with a check valve for doing two-stage fills. I simply connect to that. Then, I open the tank valve. Next, start the compressor with both bleed valves open. Close the low-pressure bleed valve first, then the high-pressure bleed valve. The pressure gauge on the compressor quickly builds up to tank pressure, then the air flow begins. Fill time from 2900 to 4400 is about 25-30 minutes. Dropping ice in the water bucket keeps water (and head) temps down. I thought I blew a burst disc on the second fill, but after changing it and looking at the old one, I think the fitting had just vibrated loose. Vibration is horrendous on this thing. My days as a helicopter mechanic (wayyyy back) tell me that it will be necessary to check the tightness of all the fittings on a regular basis. Small game season wraps up in a week or so, and I have had a blast this year hunting with my PCPs.