It sometimes isn’t more than a year or two after you purchase a low cost, DIY type air compressor that pump valves can fail. Typically the supply of spare parts dries up at the same time, that is assuming that any retail outlet had parts for the air compressors they sell in the first place. If a pump valve fails, can you make a compressor pump valve?
A couple of readers of my compressed air self-help website say you can.
One visitor in particular writes in that he made his own valves using the blade from a paint scraper.
Using the old, broken valve as a guide towards picking a satisfactory metal replacement, and for size, this visitor rough cut a paint scraper metal blade to roughly the same size as the valve he was replacing. Then, using a grinder, he brought the finished size down to match the old. He drilled the same holes in the new as the old and installed the “new” compressor pump valve.
He reported that it worked perfectly. That was good to hear, though we, at present, have no idea how long the new valve has held up inside the rigorous environment of a compressor pump.
The actual steps for building the valve were:
- Take the old valve plate to the store and pick a paint scraper that was big enough to cut to size, and had a similar thickness as the broken valve.
- Attach the scraper blade (removed from the scraper handle) to thin piece of board to help hold the metal and reduce vibration when cutting.
- Trace the old valve size onto the paint scraper blade and rough cut out the new valve a little bigger than the old.
- Carefully grind the new blade to accurate size.
- Using the old blade, trace any hole locations on the new, and drill to the same size.
- Install the new blade (s) in the pump head.
A creative solution, for handy folks, when they need to replace a compressor pump valve, and can’t find an OEM or off brand part.