Specifications
B-4
PUMP & FLUID ENDS
40,000 PSI
PUMP &  
FLUID ENDS
US & Canada: 800-231-8192 or 832-590-1300
MODEL 3640  
UNx
™
 BARESHAFT PUMP
The Jetstream model 3640 is capable of power input up 
to 200 horsepower and ows* exceeding seven gallons 
per minute at 40,000 psi. It is the most advanced 
and efcient 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 uid 
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
FLUID END SPECIFICATIONS
*Displacement (flow) values represented refer to “theoretical” flow, neglecting inefficiency resulting from compressibility of water and expansion of  
pressure-bearing components.
MAX. POWER 
INPUT
PLUNGERS
PUMP RPM
MAX. PUMP 
DISPLACEMENT*
MAX. FRAME  
LOAD
MAX. OPERATING 
PRESSURE
TOTAL WEIGHT
PUMP OIL
QTY.
STROKE
TYPE
CAPACITY
hp kW in mm min max gpm lpm lbs N psi bar lbs kg gal I
200 149 3 3.63 92 150 514 10.8 40.9 11,300 50,300 40,000 2,750 1,720 780 80W-90 9.0 340
PART NO.
PLUNGER SIZE PUMP DISPLACEMENT AT SPECIFIED PUMP SPEEDS*
MAX. OPERATING 
PRESSURE
NO.
DIAMETER 150 RPM 200 RPM 300 RPM 400 RPM 514 RPM
in mm gpm lpm gpm lpm gpm lpm gpm lpm gpm lpm psi bar
54500 #6 0.600 15.24 2.7 10.1 4.0 15.1 5.3 20.2 6.7 25.2 7.8 27.7 40,000 2,750
54505 #7 0.670 17.02 3.3 12.6 5.0 18.9 6.6 25.1 8.3 31.4 9.1 34.6 32,000 2,206
54510 #8 0.730 18.54 3.9 14.9 5.9 22.4 7.9 29.8 9.9 37.7 10.8 41.0 27,000 1,861










