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rotary gear pumps, positive displacement pump, chemical gear pump, oil gear pump Positive Displacement Rotary Gear Pumps
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Rotary Gear Pumps

APPLICATIONS

  • Transfer of various grades of oils like light Diesel Oils, Fuel Oils, Transformer oils, lube oils, castor oils, Grease , wax etc.
  • Transfer of chemicals like sodium silicate, caustic soda, resins, enamels, adhesives, fatty acids, paints and varnish, pulp, juices, Syrups, Alcohol, Kerosene, etc.
  • Atomising of fuel oil at high pressure for burners and boilers.
  • Lubrication of gear boxes, cranes, Machine tools, etc.
  • Cooling and filtering in machine tools.
  • Heat transfer liquids for chemical vessels.
  • Hydraulic systems for presses, power pack units etc.
These pumps are simple in design and robust and sturdy in construction. Only tested materials are used to give them long life. They are built in various sizes and versions to suit every possible industrial application.

These pumps available either foot mounted or flange mounted.
Pressure range - 0 Kg./cm²to 10 Kg./cm²
Capacity - upto 4000 LPM
Size - 3/8" to 8" Inlet - outlet

SPECIAL FEATURES
  • Direction of rotation can be given as per client's requirements.
  • Suction and delivery have threaded connections upto 20" BSP. Flange connections can be given on request. 3" & above pumps have integral flange connection.
  • As per clients requirement pump is provided with electric motor, gear box, diesel engine, base plate, coupling, guard, flanges, pulley & Belt Drive, Trolley Mounted, etc.
  • Pump are also available in steam jacketed design specially suitable for liquids which solidify or become highly viscous at room temperature like LSHS, Wax, Coal Tar, Adhesives, etc.
  • Pumps are fitted with Mech. Seal, Gland Packing or oil seal as per client's requirements.
  • Pumps are available under Low pressure range (0 to 10 Kg/cm²) as well as High pressure range (11 to 40 Kg/cm²) On the basis of requirements.
  • Pumps are available in SS 304, SS 316, A 216 Gr. WCB, mild steel, gun metal, Aluminium Material also.
  • Pumps can be offered with external bearing design suitable for liquids which do not have lubricating property like molasses, high temp. oil, Corrosive abrasive liquid, Pharmaceutical Products, etc.
  • Pumps are designed, mfd. & tested as per API Std. 676.
  • A builtin relief wall is provided in Pump Back Cover. It can be adjusted externally to ensure that the pump does not build up pressure above certain preset limit. This prevents overloading of the motor as well as probable damage to the pump.
Standard Pumps Specification for rotary Gear Pumps

Based on liquids not exceeding 200 CST viscosity and 70°C maximum temperature.

Pump model Max cap.in LPM at 0 Kg./cm² Pump size RPM Table for Pressure V/s Power (HP) Kg./ cm² Table for Pressure V/s Capacity (LPM) Kg. / cm²
        3.5 5 7.5 10 3.5 5 7.5 10
MSL 10 5 3/8" 1440 0.5 0.5 0.5 0.5 5 4.5 4 3.5
MSL 15 12 ½" 1440 0.5 0.75 1 1 11 10 9 8
MSL 20 25 ½" /¾" 1440 1 1 1.5 1.5 23 22 21 20
MSL 35 45 ¾" 1440 1.5 1.5 2 2 42 38 35 30
MSL 60 60 1" 1440 2 2 2 3 57 55 52 50
MSL 100 125 1½" 1440 3 3 5 5 120 115 110 100
MSL 150 175 1½" 1440 5 5 7.5 7.5 175 170 165 160
MSL 200 250 2" 1440 7.5 7.5 10 12.5 240 230 215 200
MSL 350 325 2½" 1440 10 12.5 15 20 315 305 290 275
MSL 500 450 TO 750 3" 1440 - - - - - - - -
MSL 800 800 TO 1300 4" 1440 - - - - - - - -

RECOMMENDED PUMP SPEED AND POWER REQUIREMENTS WHEN PUMPING LIQUID HAVING VISCOSITY OF 200 CST TO 50000 CST

Viscosity of liquid CST Permissible pump speed with reference to max. Rated speed from table Additional Power required Viscosity of liquid CST Recommended Pump Speed RPM
3.5 Kg/cm² 5.0 Kg/cm²    
200 to 500 100% 50% 35% 200 to 5000 750
500 to 1500 75% 50% 35% 5000 to 15000 500
1500 to 2500 75% 60% 50% 15000 to 50000 200


Pump capacity is directly proportional to pump speed
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Dimensions

Individual pump outline dimensioned drawings available on request according to the application.





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