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SECTION 1 DESCRIPTION
1.1 GENERAL INFORMATION
The Series G Model M is a reciprocating, chemical dosing pump capable of producing ows up to 500 liters
per hour at pressures up to12 Bar. These pumps feature a mechanically actuated diaphragm Iiquid end, which
eliminates the need for flow-restricting contour plates, and a stroke adjustment mechanism based on the
variable eccentric principle instead of the traditional lost-motion design. It is designed for industrial service and
offers an accuracy of ±1.5% of full rated ow between 10% and 100% of its ow range.
The basic pump components as illustrated in Figure 1-1 are:
a drive device comprising a motor (1)
a mechanical assembly (2)
a liquid end (3)
An elastomeric bellows provides an Ieak-tight seal between the mechanical assembly and the liquid end.
Capacity adjustment is manually controlled by a stroke adjustment knob (4).
Figure 1-1
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