Posted by olddog on October 22, 2008 at 05:36:56 from (24.229.174.49):
In Reply to: vacuum posted by TimWafer on October 21, 2008 at 08:53:17:
Vacuum pumps pump air and are rated in CFM. ASME rated at atmosphere pressure (14 PSI) and NZ rated at 15 inches (working)vacuum. I usta could rebuild Surge Alamo pumps in my sleep. They all used oil to lube the vanes (either metal or fibre) as well as lube the bearings. The oil is recycled in the reclaimer. You may be able to get along with heating oil for lube but consider the consequences of compressing it as a vapor. Also consider a muffler on it in a residential setting. Your variables are the size of the suction line, height that you are lifting it, (20 ft may be max) and your patience for time to draw it off. Good news .. we recommended to flush any pump whose oil was contaminated with milk or water; with diesel! There are those around here using milker (vacuum) pumps to draw septic tanks.
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Today's Featured Article - George's Fordson Major - by Anthony West (UK). This is a bit of a technical info to add on to the article about George's Major in the "A Towny Goes Plowing" article. George bought his Major from a an implement sale about 18 years ago for £200.00. There is no known history regarding its origins or what service it had done, but the following work was undertaken by Harold alone to bring it up to show standard. From the engine number, it was found that the major was produced late 19
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