Maximator® Liquid Pumps
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- Consider the type of fluid to be pumped and compatible materials.
- Know the available minimum plant air pressure.
- Determine the required outlet pressure.
- Determine the required flow rate.
- Feel free to consult your distributor or MAXPRO for application assistance.
Flow rates for each pump, at various air drive pressures and outlet pressures, are provided in the catalog. These pumps run very rapidly at no load and slow down as pressure increases. The pump will eventually come to a stop at the "stall" pressure, which is the air drive pressure times the pressure ratio of the pump. At this "stall" point there is no flow and no air consumption. The pump will hold the outlet pressure indefinitely and will only stroke if the outlet pressure drops or the air drive pressure is increased.
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How to Select a Maxpro Pump
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- Consider the type of fluid to be pumped and compatible materials.
- Know the available minimum plant air pressure.
- Determine the required outlet pressure.
- Determine the required flow rate.
- Feel free to consult your distributor or MAXPRO for application assistance.
Flow rates for each pump, at various air drive pressures and outlet pressures, are provided in the catalog. These pumps run very rapidly at no load and slow down as pressure increases. The pump will eventually come to a stop at the "stall" pressure, which is the air drive pressure times the pressure ratio of the pump. At this "stall" point there is no flow and no air consumption. The pump will hold the outlet pressure indefinitely and will only stroke if the outlet pressure drops or the air drive pressure is increased.
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Installation and Maintenance
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- Maximator® pumps can be installed in any position, but vertical is best for longest seal life.
- All connections to the pump, both liquid (inlet and outlet) and air drive lines, must be run with equal or greater size than the connections to the pump.
- The maximum recommended height of a pump suction above the fluid level is 10 ft. for LO and L pumps, 7 ft. for S pumps, and 3 ft. for PPO and PP pumps. Operate pump slowly during initial prime.
- Drive air should be filtered between 5µ and 4µ and have a maximum dew point of 50ºF. Very wet air will wash out lubricant and cause exhaust icing. Very dry air (dew point below 0ºF) will dry out lubricant and cause premature failure of spool o-rings and requires the use of Dry Air Spool option.
- Pumped liquids should be filtered at 100µ or better, viscosity between 1-100 est.
- Pump performance is affected by many operating conditions. Extreme temperatures, pressures, and high duty cycles will increase maintenance frequency.
- All units are lubricated at the factory with silicone free semi-synthetic grease. After 2-3 months of normal (50% duty) operation, the standard spool seals should be inspected for wear and relubricated. Based on this inspection, future maintenance intervals can be planned and further disassembly and lubrication of other moving seals may be necessary. Optional Dry Air Spool seals require less maintenance.
- MAXPRO® offers complete technical and service support for all Maximator® pumps. Customer service is our priority
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Note
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- All connections listed are FNPT unless otherwise noted.
- Air drive inlet connection on all GX pumps is 3/4" FNPT.
- Maximum allowable liquid temperature is 140ºF.
- Air section temperature rating: 0ºF to 140ºF.
- 2Fluorocarbon (FKM) is a registered trademark of E.I. DuPont de Nemours & Co., Inc.
- The GX pumps have a pilot port that is pre-plumbed. This port can be used for control purposes with the following modifications:
- Remove the tube from the front of spool valve housing to bottom face of end cap.
- Remove fitting in spool valve housing and plug with a 3/8" MNPT plug.
- Run your pilot air line to the bottom lace connection using 10 mm tube and fittings.
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