Rotary Gear Pumps

Rotary Gear Pumps

Rotary Gear Pumps

Internal and External type

A gear pump uses the meshing of gears to pump fluid by displacement.

They are one of the most common types of pumps for hydraulic fluid power applications.

Gear pumps are also widely used in chemical installations to pump fluid with a certain viscosity.

There are two main variations, external gear pumps which use two external spur Gears and internal gear pumps which use an external and an internal spur gear.

Gear pumps are positive displacement (or fixed displacement), meaning they pump a constant amount of fluid for each revolution

We offer complete range of Gear pumps and lobe pumps according to the application

Range of Product:

Pressure range 0 Kg./cm² to 10 Kg./cm²
Capacity 12,000 LPM
Sizes 3/8" to 12 " Inlet – outlet

Scope of Supply

Pump with Pressure relieve valve + base plate ( Skid) + coupling and guard and foundation bolts.

We offer metallic pumps in following materials

  • Cast iron
  • Ductile iron
  • Cast steel
  • Stainless steel
  • Gun metal
  • Bronze and other Alloy grades as per operating conditions.

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.
  • Atomizing 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.
  • These pumps available either foot mounted or flange mounted.
  • Pumps are designed, mfd. & tested as per API Std. 676.

Standard Pumps Specification for rotary Gear Pumps

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)
        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 1/2" 1440 0.5 0.75 1 1 11 10 9 8
MSL 20 25 1/2"/3/4" 1440 1 1 1.5 1.5 23 22 21 20
MSL 35 45 3/4" 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 11/2" 1440 3 3 5 5 120 115 110 100
MSL 150 175 11/2" 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 250 325 21/2" 1440 10 12.5 15 20 315 305 290 275
MSL 300 450 to 750 3" 1440 ON REQUEST
MSL 400 800 to 1300 4" 1440
MSL 500 ON REQUEST 5"  
MSL 600 6"  
MSL 700 7"  
MSL 800 8"  
MSL 900 9"  
MSL 1000 10"  
MSL 1100 11"  
MSL 1200 12"  

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 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