pescador775
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I bought a paintball style fill yoke (new) on EBay for a few bucks thinking that it could be used for filling SCUBA tanks off my portable air compressor. These things are very compact and travel friendly, and cheap, so why not? Well, let me tell you. My first impression was that the device was high quality, all stainless, very nice. However, when I hooked it up to a SCUBA tank the valve O ring blew out. The bleed screw would lock up tight as soon as it was partially turned. Extremely difficult to bleed off air in less than a couple minutes unless the screw was forced with pliers. The gauge was difficult to read.
The blown O rings were due to incorrect dimensions of the Yoke orifice. The entire orifice is removable so I had a new one machined to the correct dimensions. The bleed screw problem was traced to the drain hole which was too small. I drilled an additional drain hole. I replaced the original bleed screw with one designed for Scuba yokes. The original had a weird floating seat which was causing problems. The knob on the large yoke screw was too small so I drilled it and installed a dowel which allows one to get a FIRM grip (that was done after pic was taken). I installed a larger gauge. Whew, expensive lesson but it works well now.
The blown O rings were due to incorrect dimensions of the Yoke orifice. The entire orifice is removable so I had a new one machined to the correct dimensions. The bleed screw problem was traced to the drain hole which was too small. I drilled an additional drain hole. I replaced the original bleed screw with one designed for Scuba yokes. The original had a weird floating seat which was causing problems. The knob on the large yoke screw was too small so I drilled it and installed a dowel which allows one to get a FIRM grip (that was done after pic was taken). I installed a larger gauge. Whew, expensive lesson but it works well now.