Summary of Contents for Zenith Pumps
- Page 1 Zenith Pumps ® PEP-II Series Gear Pumps Installation, Care and Maintenance Zenith Polymer Extrusion Gear Pumps...
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Page 2: Specifications
Thoroughly read and understand this entire manual before installation and operation of pump. Zenith Pumps ® In 1926, Zenith Pumps was approached by the synthetic fiber industry to design a pump to provide a precise, pulseless, and repeatable flow and assure better quality control. - Page 3 ZENITH ADDITIVE INJECTION SYSTEM Zenith Pumps can handle all your extrusion pumping applications including additive injection for on-line compounding of tackifiers, colorants, stabilizers, etc. Design The PEP-II pump is constructed of two gears rotating in mesh within a closely fit- ted housing that is comprised of three plates.
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Page 4: Dimensional Diagram
PEP-II Pump 0.16-3 cc/rev Dimensional Data Chart PUMP CAPACITY 0.16 3.000 3.000 2.860 3.000 3.000 2.860 3.000 3.000 2.860 3.000 3.000 3.650 3.000 3.000 3.650 3.000 3.000 3.650 CC/REV Chart 1 Materials Of Construction Diagram And Chart Diagram 2 Dimensional Diagram Diagram 1 PUMP DIMENSIONS 1.400... - Page 5 PEP-II Pump 5-750 cc/rev Dimensional Data Chart PUMP CAPACITY 3.250 3.250 3.250 4.000 4.000 4.000 4.750 5.000 5.000 5.750 6.000 6.250 8.000 8.250 8.250 9.500 9.750 9.880 11.250 12.000 12.500 14.750 15.750 16.500 CC/REV Chart 3 Materials Of Construction Diagram And Chart Diagram 4 Dimensional Diagram Diagram 3...
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Page 6: Operation
As PEP-II pumps rely on the metered polymer for lubrication of internal bearing surfaces, the operating speed is designed to be from 10 to 90 rpm on most extrusion processes depending on process parame- ters. - Page 7 Zenith for complete rehabilitation as necessary. This procedure may be desirable if only a few pumps are involved. If a large number of pumps are to be maintained at the user’s plant, it may be worthwhile to have key...
- Page 8 Alternate taps on the shafts until the parts slide clear. Separate the two shaft/bearing assemblies, taking care not to lose the keys in the 10 cc/rev and smaller pumps. There are no keys in the 20 cc/rev and larger pumps.
- Page 9 Insert the lubricated cover plate screws into the pump and tighten them finger tight only. Repeat for the rear cover plate. 9) On the 40 cc/rev and larger pumps, insert the bearing retainer screws and tighten them finger tight at this time.
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Page 10: Bolt Torque
Do not press the lip seal all the way into its cavity. Instead, allow it to protrude slightly so that it will be correctly seated by the seal cover. Carefully remove the special Zenith tools. Bolt Torque Size (UNC Alloy Steel) -
Page 11: Parts Replacement
When ordering replacement parts, please be sure to include the following information: 1) Pump model number Replacement 2) Part number (12-digit) and description 3) Quantity 4) Shipping instructions Order parts from your local Zenith representative or direct from Zenith. Troubleshooting Trouble Pump will not turn Excessive seal assembly leakage... - Page 12 The products described herein, including without limitation, product features, speci cations, designs, availability and pricing, are subject to change by Zenith Pumps and its subsidiaries at any time without notice. A Colfax Buisiness Unit...