Alemite 7880-C1 Service Manual

Description
The major components of low-pressure pump model 7880-C1
consist of a reciprocating differential air motor and a double-acting
pump tube.
The pump is designed to deliver a mixture of antifreeze and
water. It can also be used to dispense windshield washer fluid and
water.
This low-pressure (2-1/2:1 ratio) pump includes a 2 " NPTF (m)
thread for mounting on the 2 '' bung thread of a drum or tank. With
the use of an extension (not included) the pump can accommodate
different size drums and tanks.
The pump can also mount to a wall (with the use of a wall
bracket) and be used with an optional siphon wand kit. See Table 4
for details.
Specifications
Differential Air Motor
Piston Effective
Diameter x Stroke Piston Area *
2
In Cm
In
2-1/16 x 4 5.2 x 10.2 1.67
For details on the air motor, refer to Service Guide SER 318450-4.
See Figure 3 for performance curves.
* The effective piston area of a differential air motor is equal to one-half the
actual area of the piston.
Pump Tube
Max. Fluid Max. Free-Flow
Pressure Delivery/Minute *
Fluid
Outlet
psi Bars Gallons
3/8 " NPTF (f) 500 34.5
See Figure 3 for performance curves.
* At 100 psi (6.9 Bars) air pressure
Table 1 Low-Pressure Pump Model 7880-C1 Specifications
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and is not to be copied, used, or disclosed to others without express written permission.
Service Guide
Low-Pressure Pump
Air Inlet
2
Cm
10.8 1/4 " NPTF (f)
Recommended
Continuous
Delivery/Minute
Liters Gallons Liters
7 26.5 4-1/4 16.1
Alemite Corporation
PO Box 473515, Charlotte, North Carolina 28247-3515
www.alemite.com
©
Copyright
Maximum Air
Pressure
psi Bars
200 13.8
Displacement
per Cycle
3 3
In Cm
5.4 88
Figure 1 Low-Pressure Pump Model 7880-C1
2000 by Alemite Corporation
7880-C1
SER 7880-C1
Revision (6-00)