DPRBJ

Architecture

Rotary Twin Gear Pump- DPRBJ

P & D PUMPS & GEARS INDUSTRIES offer “ROTOJET” brand gear pump Model “DPRN/DPRB/DPRX” (Rotary Twin Gear Pump / Molasses Gear Pump / Positive Displacement Gear Pump / External Gear Pump) which is heavy duty foot mounting type positive displacement rotary twin gear pump.

P & D PUMPS & GEARS INDUSTRIES offer “ROTOJET” brand gear pump Model “DPRBJ” (Rotary Twin Gear Pump) Which is heavy duty foot mounting type positive displacement rotary twin gear pump. Model “DPRBJ” having three piece constructions and it can be easily cleanable and maintainable.

Size:- 1/2" to 6"

Flow capacity:- 8.30 LPM to 2083.00 LPM

Viscosity:- up to 1, 00,000 SSU

Pressure:- up to 10 kg/cm²

Temperature:- up to 200ºc

Pump Selection

Model DPRBJ: This Model DPRBJ should be selected for liquid which tends to solidify at room temperature such as Bitumen, Furnace oil, Asphalt, Tar, Starch, Molasses, Naphtha, RFO, Silicate, Wax, Soap solution. This model has jacketed construction which facilitates the heating of pump by steam or thermal fluid.

Material of Construction

Part Material For DPRN / DPRX Material For DPRB
Pump Body CI/CS CI/CS
Front Cover CI/CS CI/CS
Back Cover CI/CS CI/CS
Gland Cover CI/CS CI/CS
Rotor & Stator Shaft EN-9 EN-9
Gear EN-24 EN-24
Bush/Needle Bearing INA/IKO [Japan] Non-Ferrous
Mounting Bracket C.I.Gr.-20 IS 210 CF8M [SS-316]
Wear Plate Non-Ferrous Non-Ferrous
Lifting Hook Mild Steel Mild Steel
R.V. Housing Mild Steel Mild Steel
R.V. Piston EN-8 EN-8
R.V. Spring Spring Steel Spring Steel
R.V. AD. Screw EN-8 EN-8
Sealing 'GFO' Teflone/Mechnical Seal 'GFO' Teflone/Mechnical Seal
Key EN-8 EN-8
Dowel Pin EN-31 EN-31
Hex - Bolt Mild Steel Mild Steel

Technical Specification

Model DPRN/DPRB/DPRX Suction & Delivery Size Capacity at 1440 RPM
LPM US GPM M³/hr
050-S 1/2" x 1/2" 8.30 2.20 0.50
050-M 1/2" x 1/2" 16.60 4.40 1.00
050-L 1/2" x 1/2" 25.00 6.60 1.50
100-S 1" x 1" 33.30 8.80 2.00
100-M 1" x 1" 50.00 13.20 3.00
100-L 1" x 1" 60.00 15.84 3.60
150-S 1½" x 1½" 83.30 22.00 5.00
150-M 1½" x 1½" 100.00 26.40 6.00
150-L 1½" x 1½" 125.00 33.30 7.50
200-S 2" x 2" 150.00 39.00 9.00
200-M 2" x 2" 166.00 44.00 10.00
200-L 2" x 2" 200.00 52.80 12.00
250-S 2 ½" x 2 ½" 250.00 66.00 15.00
250-M 2 ½" x 2 ½" 299.88 79.20 18.00
250-L 2 ½" x 2 ½" 333.30 88.00 20.00
300-S 3" x 3" 415.00 105.00 25.00
300-M 3" x 3" 449.82 118.00 27.00
300-L 3" x 3" 500.00 132.00 30.00
400-S 4" x 4" 599.76 158.40 36.00
400-M 4" x 4" 666.66 176.00 40.00
400-L 4" x 4" 833.30 220.00 50.00
500-S 5" x 5" 1000.00 264.00 60.00
500-M 5" x 5" 1250.00 330.00 75.00
500-L 5" x 5" 1499.00 396.00 90.00
600-S 6" x 6" 1660.00 440.00 100.00
600-M 6" x 6" 1832.00 484.00 132.00
600-L 6" x 6" 2083.00 500.00 125.00

Application

  • • Power plant.
  • • Steel plant.
  • • Cement plant.
  • • Bitumen plant.
  • • Petroleum industries.
  • • Refineries.
  • • Pumping station.
  • • All kind of liquid loading and unloading

Features

  • • Heavy duty gear pump design for continuous application.
  • • Herringbone rotor design eliminates side thrust.
  • • Modified tooth profile enhances tooth life.
  • • Floating gear design ensures uniform load distribution.
  • • Optionally steam jacket available.
  • • Double helical gear design prevent axial load.
  • • Low leakage path by design improve volumetric efficiency.
  • • Shorter bearing span reduces bending effect
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