Zenith ® pumps installation, care and maintenance zenith polymer extrusion gear pumps pep-ii series gear pumps.
Zenith ® pumps 2 thoroughly read and understand this entire manual before installation and operation of pump. Benefits specifications capacities: 0.16 to 750 cc/rev. Operating speed: 10 - 90 rpm on most extrusion processes depending upon process parameters differential pressure: up to 5,000 psi (345...
Zenith ® pumps and the extrusion process design zenith pumps can handle all your extrusion pumping applications including additive injection for on-line compounding of tackifiers, colorants, stabilizers, etc. 3 zenith additive injection system electric heat plate pump temperature inlet pressure disc...
Pep-ii pump 0.16-3 cc/rev item qty part material 1 1 front plate tool steel 2 1 center plate tool steel 3 1 rear plate tool steel 4 1 drive shaft tool steel 5 1 arbor tool steel 6 2 metering gear tool steel 8 2 key, gear 9 2 bearing tool steel 10 2 bearing tool steel 11 1 rheoseal stainless 13 1 sea...
Item qty part material 1 1 driving gear shaft tool steel 2 1 driven gear shaft tool steel 3 1 center plate tool steel 4 2 cover plate 4140 6 2 bearing tool steel 7 2 bearing tool steel 14 2 seal plate stainless 16 2 lip seal filled ptfe 17 20 socket head bolt alloy 18 8 socket head bolt alloy 20 2 r...
Operation 6 installation polymer enters the pep-ii pump on the suction side where shaft rotation exposes gear tooth volumes between the gear teeth. Polymer fills these spaces and is transported to the discharge side where the gear teeth mesh together, decreasing the gear tooth volumes and displacing...
Cleaning, inspection, repair and service 7 disassembly after removal from the system, the assem- bled pump can be cleaned by placing it in a suitable furnace (i.E. Vacuum oven, fluidized bed, etc.) and slowly increasing the temperature to 800-850° f in no less than two hours. Special care should be ...
Disassembly continued 8 d-bearing orientation schematic plate and set aside in a safe place to pre- vent damage. At this point, make certain to note the orientation of the groove on the rear of each bearing with respect to the inlet port. They must be reassembled in the same way as disassembled; tha...
Reassembly 9 these instructions should be thoroughly read and understood before starting reassembly. General instructions that should be observed to ensure correct reassembly of the pump are as follows: • using a solvent such as trichloroethane or chloroethene nu, clean all parts that are to be used...
Size (unc recommended alloy steel) torque (in-lbs) 1/2-13 922 9/16-12 1,331 5/8-11 1,836 3/4-10 3,257 7/8-9 5,800 1-8 8,000 1 1/8-7 12,000 10 reassembly continued bolt torque size (unc recommended alloy steel) torque (in-lbs) #8-32 30 #10-24 43 #10-32 49 (unf thread) 1/4-20 103 5/16-18 213 3/8-18 37...
11 troubleshooting parts replacement when ordering replacement parts, please be sure to include the following information: 1) pump model number 2) part number (12-digit) and description 3) quantity 4) shipping instructions order parts from your local zenith representative or direct from zenith. Trou...
Failure, improper selection or improper use of the products and/or systems described herein or related items can cause death, personal injury and property damage. This document and other information from zenith pumps, its subsidiaries and authorized distributors provide product and/or system options...
