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www.allfett.net
PUMP ELEMENT DESCRIPTION
ALL-25 multi line grease pumps are available in several displacement volumes. These volumes can
be created with pump elements which are optionally offered. 1 to 20 Pump elements can be applied onto
ALL-25 Multi Line type pump body to take grease out. Even though single pump element can be used as
outlet, multiple pump elements can be bridged as single outlet to get more displacement.
Pump element is equiped with security relief valve to protect any damage may occure from high
pressure. Lubrication system pressure is increasing when a lubrication point is blocked. Up to 450 bar. pressure,
lubrication systems working pressure can be adjusted by security relief valve. Lubricant with over pressure
will be out from exhoust hole.
Pump elements are manufactured in 3 types according to diplacement amounts. These types can
be described as its piston diameter ;
with Ø5 mm piston, pump elements outlet displacement is 5cm³ / minute
with Ø6 mm piston, pump elements outlet displacement is 7.5cm³ / minute
with Ø7 mm piston, pump elements outlet displacement is 9.5cm³ / minute
42 mm
Suction hole
Piston
Spring
Security
relief valve
adjust screw
Outlet coupling
Exhaust hole
Pump elements are offered optionally. When ordering a pump, pump elements have to
be ordered separately according to displacement properties.
