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3640 UNx Bareshaft Pump - #8 Plungers

Part No: 54510

With input power up to 188 hp (140 kW), this 3640 UNx® bareshaft pump will flow up to 10.8 gpm (41 l/min) at up to 27,000 psi (1850 bar).

Jetstream model 3600 waterblast pumps are the most advanced and efficient medium horsepower water blast pumps in the industry. Cominbing the strength and durability of a proven pwer end workhorse with the unparalleled simplicity, serviceability and versatility of the UNx fluid end design, Jetstream bareshaft pumps are the best choice for those building their own system or replacing a complicated, worn or unreliable pump.

 UNx Fluid End Features

  • Superior performance
  • Greater flexibility in the field
  • Reduced downtime and maintenance

UNx Power End Features

  • Ductile iron power frame is the strongest in the industry
  • Largest bearing of any comparable pump in the market
  • Three Plunger (triplex) design
Model Name 3640
Maximum Power (hp) 188
Maximum Operating Pressure (psi) 27000
Maximum Flow (gpm) 10.8
Minimum Flow (gpm) 3
Maximum Power (kW) 140
Maximum Operating Pressure (bar) 1850
Maximum Flow (l/min) 41
Minimum Flow (l/min) 11
Plunger Size #8
Plunger Diameter (in) 0.73
Plunger Diameter (mm) 18.54
Number of Plungers 3
Plunger Stroke (in) 3.6
Plunger Stroke (mm) 92
Discharge Port Connection 40K Pump Discharge Female
Accessory Port Connections Jetstream 40K Port Female
Number of Accessory Ports 3
Suction Port Connection 1"NPT Female
Minimum Pump Speed (RPM) 150
Maximum Pump Speed (RPM) 550
Maximum Plunger Load (lbs) 11300
Maximum Plunger Load (N) 50300
Flow at 150 RPM (gpm) 2.9
Flow at 200 RPM (gpm) 3.9
Flow at 300 RPM (gpm) 5.9
Flow at 400 RPM (gpm) 7.8
Flow at 500 RPM (gpm) 9.8
Flow at 550 RPM (gpm) 10.8
Flow per Revolution (gal/rev) 0.0196
Flow at 150 RPM (l/min) 11
Flow at 200 RPM (l/min) 15
Flow at 300 RPM (l/min) 22
Flow at 400 RPM (l/min) 30
Flow at 500 RPM (l/min) 37
Flow at 550 RPM (l/min) 41
Flow per Revolution (l/rev) 0.074
Power End Model 3600
Oil Type 80W-90
Oil Capacity (gal) 9
Oil Capacity (l) 34
Weight (lbs) 1720
Weight (kg) 780

UNx Conversion Video

This video highlights the ease of maintenance and pressure convertibility of Jetstream UNx Pump. (3:59)

3600 UNx Fluid Ends

Increase the range of available operating pressures for any Jetstream 3600 UNx Pump with additional fluid ends. Conversions take only minutes and are available for pressures up to 40,000 psi (2750 bar).

40K Bypass Valve - Pump Mount

A bypass valve diverts a portion of pump flow to a low- pressure outlet and is used to prevent bogging of diesel engines when using flows at the low end of the pump’s capability or to adjust pressure on electric motor driven systems.  40,000 psi (2750 bar).  Pump-mounted.

40K Handle-Adjustable Regulator

Maintains constant system pressure when operating one or more shut-in devices. Knob-adjustable. Field-replaceable valve cartridge. For operation at 20,000 - 40,000 psi (1400 - 2750 bar). Pump-mounted.

UNx Spare Parts Packages

Packages include all major fluid end replacement packaged together for easy transport and storage.

3600 UNx Bareshaft Pumps

3600 UNx triplex pumps can handle input power up to 200 hp (149 kW). Output from 46 gpm at 6,000 psi (173 l/min at 400 bar) to 7.3 gpm at 40,000 psi (28 l/min at 2750 bar).