The maximum vertical lift at sea level with a pump in perfect condition is 33.9 feet. A more realistic lift is 20 - 22 vertical feet. A standard centrifugal pump will not prime itself. A gear pump in good condition will prime itself. But, a gear pump is more easily damaged by debris in the liquid than a centrifugal pump.
Some centrifugal trash pumps are self-priming also. In order for a centrifugal, or self-priming pump to attain its initial prime the casing must first be manually primed or filled with liquid. Afterwards, unless it is run dry or drained, a sufficient amount of liquid should remain in the pump to ensure quick priming the next time it is needed. Another type of self priming trash pump is a diaphragm pump.
A centrifugal pump will pump at a higher volume then a gear pump so it is often primed by a gear pump and then the gear pump is shut off and the centrifugal pump takes over. Another way to prime a centrifugal pump is to pour liquid into the pump chamber (casing) while the pump is turning. If the pump is in good condition the pump will pick up a prime and continue to pump. If it doesn't pick up a prime, look for air leaking into the suction hose, or worn pump rings.
If I was going to do what you plan to do, I would use a gear pump with a mesh screen at the end of the suction hose. This solves the need for priming the pump upon startup. Another possibility is a self-priming centrifugal trash pump, but this pump needs to be in very good condition and will need to be primed the first time it is used.
If you want to know more about pumps, google: pump handbook 071503.pmd
We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]
Today's Featured Article - Tractor Profile: Farmall M - by Staff. H so that mountable implements were interchaneable. The Farmall M was most popular with large-acreage row-crop farmers. It was powered by either a high-compression gas engine or a distillate version with lower compression. Options included the Lift-All hydraulic system, a belt pulley, PTO, rubber tires, starter, lights and a swinging drawbar. It could be ordered in the high-crop, wide-front or tricycle configurations. The high-crop version was called a Model MV.
... [Read Article]
Latest Ad:
1964 I-H 140 tractor with cultivators and sidedresser. Starts and runs good. Asking 2650. CALL RON AT 502-319-1952
[More Ads]
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy
TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.
