¥ University of Kentucky——C0lIege of Agriculture
. EXTENSION DIVISION
.  THOMAS P. COOPER, Dean and Director
Circular No. 246 June, 1931
Published i11 CUllll€‘('[lUll with the 2'lgl`l('llltUl`2ll extension work c:1rrie·l
» on by cooperutioti of the College of Agl`li_'llltll1'€, University of Kentucky,
with the U. S. ,I;)O])2ll`tlllt*-III of .·\§l'l(‘ll]l.l\l`€, and distributed i11 fLll`[l\€l`2lllC€
V of the \v<.»1·I; ])l'(>\'l(lL’(l for lll the Aut of Cmigress of May S, lllll.
V  The Hydraulic Ram
’  By HOWARD MATSON
`. A hydraulic ram is a device by which tI1e lllOl1l€l1tlll1l of a large
quantity of water flowing down 21 pipe is used to force a small quantity
· to a higher level than the source. A ram can be used ivherever EL
sufficient volume of water can be piped from its source to a level
several feet lower.
. PRINCIPLE OF OPERATION 1
_ \Vate1· flows down the drive pipe i11to the body of the ram and l
A out thru tl1e impetus valve, gaining velocity until its lllOI`ll€ll[ll11l is
  sufficient to close the valve. The sudden closing of this valve causes
‘ tl1e moving column of water to exert great force ll]_)0l1 the valve in tl1e
_  bottom of the air clieniber, driving water lll and compressing tl1e air
lllltll the energy of the water colu111n is spent. Tl1e air-clianiber valve ‘
then closes, and the compressed air forces water out thru the delivery
J   ····· . .
i AIR c1—1A1v1B1212    
‘ Q / sN11=r1Ncs VALVE
. a 1
.  5 € • IMPETU5 VALVE
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