Home Products Pumping Systems Variable Pump Co-Reactant Blending System
The Palmer Variable Pumping System was developed to provide liquid catalyst resin system users with a simple, efficient, yet cost effective way to vary the cure time of cores and molds (due to mold size variation, sand temperature fluctuation, and other considerations) without having to switch from one hardener or co-reactant to another.
The Palmer VP is a self contained unit housed in a NEMA 12 enclosure which can be installed on the mixer or remotely. All electrical and control components are mounted in a secondary NEMA 12 enclosure housed within the primary enclosure.
The standard pumping system consists of two linear output piston type pumps. The output of each pump is determined by the angle of the pump in relationship to it's driver. The pumps are electrically coupled so that when pump "A" is at 0% output, pump "B" is at 100% output. With the simple turn of a knob, a high tolerance variable frequency drive adjusts the pump RPM of each drive motor to proportion the liquid components. This allows for an infinite range of calibration ratios which can be changed in seconds. Tubing from each pump is routed directly to the mixing chamber so that any adjustments to the ratio is immediate.
The total output of the pumps is determined by the overall speed selector potentiometer located in the face of the control enclosure.
The Palmer VP System can be operated in either manual or automatic mode.
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