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3640 UNx™ Bareshaft Pump - #8HF Plungers

The Jetstream model 3640 is capable of power input up to 270 horsepower and flows* exceeding seven gallons per minute at 40,000 psi. It is the most advanced and efficient medium horsepower waterblast pump in the industry. Combining the strength and durability of a proven power end workhorse with the unparallel simplicity, service ability, 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.

Power End Specifications

No. of Plungers  3
Plunger Stroke 3.63 in (92 mm)
Discharge Ports 40K Port Female 
Top Ports (Accessory) 40K Port Female
Pump Speed Range 150-518 RPM
Max Power Input 270 hp (201 kW)
Max Frame Load 17,750 lb (79 kN)
Total Weight 1,720 lb (780 kg)
Oil Type 80W-90
Pump Oil Capacity 9 gal (34 l)

 

Fluid End Specifications

Plunger Size 8HF
Plunger Diameter .790 in (20.07 mm)
Max Power Input / Operating Pressure 270 hp (201 kW) @ 36,000 psi (2482 bar)
230 hp (172 kW) @ 30,000 psi (2068 bar)
Flow at Specified Speeds
183 RPM 4.2 gpm (16 lpm)
200 RPM 4.6 gpm (17 lpm)
300 RPM 6.9 gpm (26 lpm)
400 RPM 9.2 gpm (35 lpm)
500 RPM 11.5 gpm (43 lpm)
518 RPM 11.9 gpm (45 lpm)

 

*Displacement (flow) values represented refer to "theoretical" flow, neglecting inefficiency resulting from compressibility of water and expansion of pressure-bearing components.

 

Part Number: 66947
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Model Name Maximum Power (hp) Maximum Operating Pressure (psi) Maximum Flow (gpm) Minimum Flow (gpm) Maximum Power (kW) Maximum Operating Pressure (bar) Maximum Flow (l/min) Minimum Flow (l/min) Plunger Size Plunger Diameter (in) Plunger Diameter (mm) Number of Plungers Plunger Stroke (in) Plunger Stroke (mm) Discharge Port Connection Accessory Port Connections Number of Accessory Ports Suction Port Connection Minimum Pump Speed (RPM) Maximum Pump Speed (RPM) Maximum Plunger Load (lbs) Maximum Plunger Load (N) Flow at 150 RPM (gpm) Flow at 200 RPM (gpm) Flow at 300 RPM (gpm) Flow at 400 RPM (gpm) Flow at 500 RPM (gpm) Flow at 550 RPM (gpm) Flow per Revolution (gal/rev) Flow at 150 RPM (l/min) Flow at 200 RPM (l/min) Flow at 300 RPM (l/min) Flow at 400 RPM (l/min) Flow at 500 RPM (l/min) Flow at 550 RPM (l/min) Flow per Revolution (l/rev) Power End Model Oil Type Oil Capacity (gal) Oil Capacity (l) Weight (lbs) Weight (kg)
3640 188 27000 10.8 3 140 1850 41 11 #8 0.73 18.54 3 3.6 92 40K Pump Discharge Female Jetstream 40K Port Female 3 1"NPT Female 150 550 11300 50300 2.9 3.9 5.9 7.8 9.8 10.8 0.0196 11 15 22 30 37 41 0.074 3600 80W-90 9 34 1720 780
  • Operation Manual