The gear pumping unit AD-M is predominantly used in
medium-sized machine building applications for single-line
centralized lubrication systems. Substantially consisting of a
gear pump with AC motor, it can be supplied with and without
reservoir.
Pump and motor are firmly screw-connected with each other.
For attachment to the tank, the gear pump features a flange
with inserted seal ring, fastening as such being implemented
by means of 4 screws.
The reservoir made from oil- and impact-resistant
6-mm-thick plastic has 2 mounting flanges on either side of
its backside. Oil gages serve to indicate the oil level.
Each of the fastening threads comes with a metallic insert in
the plastic material, thereby ensuring permanent durability
and a long service life even in case of frequent screwing in
and out.
The pump is equipped with a relief valve to relieve the
pressure line when the pump motor is cut out. On reaching
specified pressure, a pressure relief valve opens and thus
keeps any detrimental overpressure away from the pump.
An air-relief valve prevents air from being introduced into the
pressure line and enables quick venting of the gear pump
during system startup.
PRODUCT CHARACTERISTICS
Gear pump technique
Lubricants: oil, liquid grease
Discharge pressure max. 30 bars
Surface signal grey RAL 7004
PRINCIPLE OF OPERATION
After the electric current supply has been switched on, the
gear pump starts immediately delivering lubricant. The
integrated pressure relief valve opens at a pressure of more
than 3 MPa (30 bar) and thus prevents the gear pump from
being overloaded.