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  • Automatic Dry Priming and
    Repriming
  • Unattended Operation
  • Environmentally Safe with
    No Blowby
  • Discharge Heads Up To 490'
  • Flowrates: 100 - 800 gpm
  • General Construction
  • Tank/Vessel Transfer
  • Fire Water Service
  • Pipeline Pressure Testing
  • Booster Pump Applications
  • Open Pit Mining
  • Washdown Service
  • Irrigation
  • Water Blasting
 

Product Data Sheet
Thompson 4JC Pump

This pump uses an oil-lubricated two-cylinder piston compressor that is driven by v-belt off the shaft. A vacuum is created by forcing air through an air/water separator. A float-operated valve installed in the separator prevents liquid but allows air to exit the separation chamber. This pump develops higher discharge pressures than trash pumps due to the wear ring and closed impeller design.
Minimum Speed: 1600 rpm
Maximum Speed: 2400 rpm
Minimum Shutoff Head: 225 feet (97 psi) (1)
Maximum Shutoff Head: 490 feet (212 psi) (1)
Maximum Suction Lift: 28 feet (2)
Minimum Flow: 100 gpm
Maximum Flow: 800 gpm
Maximum Suction Press: 100 psig
Maximum Casing Press: 175 psig
Maximum Temperature: 150°F
Maximum Solids Size: 0.50"
Impeller: 15.22" diameter
Wear Ring Clearance: 0.037" - 0.042"
Bearing Lubrication: Grease
Vacuum System: Quinicy 216P, V-belt driven
air-cooled, two-cylinder, 3.5
HP @ 60 psi, 3.00" bore x
2.50" stroke,
No. Impeller Vanes: Three, totally enclosed
Mech. Seal Lubrication: Oil lubricated

Deadhead Pressure:

97 psi @ 1600 rpm
To the best of our knowledge, the technical data contained herein is true and accurate at the date of issuance and is subject to change without prior notice. No guarantee of accuracy is given or implied because variations can and do exist. NO WARRANTY OR GUARANTEE OF ANY KIND IS MADE BY BAKER PUMPS, EITHER EXPRESSED OR IMPLIED.

Click on image to enlarge

Suction Fitting: Four-inch 125# flange
Discharge Fitting: Three-inch 125# flange
Total Weight: 3300 lbs.
Overall Height: 6'-10"
Overall Width: 6'-2"
Overall Length: 12'-6"
Pump/Volute: Class 30 fine grain cast iron
Shaft Sleeve: 416 stainless steel
Wear Ring: Bronze
Mechanical Seal Faces: Carbon against ceramic
Pump Shaft: Steel
Elastomers: Nitrile (Buna-N)
Impeller: SAE 40 brass
Engine Make John Deere
Engine Model 4045D
Max. Continuous BHP: 76 @ 2500 rpm
Crankcase Oil: SAE 10W40 (3)
Oil Press @ 800 rpm: 15 psi minimum
Safety Shutdowns: Low oil press./High water temp.
Grease Lubrication: No. 2 (3)
Fuel Capacity: 60 gallons
Fuel Consumption: 2.5 gal/hr @ 2000 rpm
Fuel Type: Grade No. 2 diesel
Combustion System: Direct injection
Noise Level @ BEP: 90-95 dbA
Run Time: 24 hours (@2000 rpm)
Collant Type: 50/50 water/antifreeze mix
Slow idle Speed: 800-850 rpm
Number of Cylinders: Four
Bore x Stroke: 4.19"x5.00"
Fuel Filter: F91-RE50455-001
Oil Filter: F91-RE597514
Engine Air Filter: F91-C085004
Note:
(1) Based on 1.0 specific gravity.
(2) Depends on flowrate and pump speed.
(3) Midrange compromise. See John Deere manual.
(4) Includes weight of trailer, pump and engine.
Rev. 02/2001
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