CLEARING UP ON THE COMPRESSION
RATIO When talking about the compression of a pneumatic pump
(3:1), this means the direct ratio which exists between the
pressure of the compressed air introduced, and the pressure leaving
the pump. An example:
Take a pump with a compression ratio of 3:1:
air pressure introduced at 1 bar will output fluid at about 3 x
1 = 3 bars;
air pressure introduced at 6 bar will output fluid at about 6 x
3 = 18 bars.
CLEARING UP ON THE SYSTEM KNOWN
AS "double acting"
It is said that a pump works at "double-acting" when the
liquid output occurs both during the rise and the fall of the pneumatic
piston: in practice there is a steady and continuous liquid output
from the pump.
Wall mounted oil pumps
Wall mounted oil pumps for oil transfer
with 1:1 / 3:1 and 5:1 compression ratio.
Safe
: made in conformity with the EEC 89/392 directive and
subsequent modifications.
