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35 Frame
Plunger Pump
3520,3520C
3521,3521C
3527
Brass
Standard and
Flushed
Stainless Steel
Standard and
Flushed
Nickel Aluminum Bronze
Standard
SPECIFICATIONS
U.S. Measure Metric Measure
Flow .........................................................................23 gpm (87 lpm)
Pressure Range .....................................100 to 2000 psi (7 to 140 bar)
Inlet Pressure Range ........................Flooded to 70 psi (Flooded to
4.9 bar)
RPM.........................................................................800 rpm (800 rpm)
Bore ............................................................................1.260” (32 mm)
Stroke .........................................................................1.890” (48 mm)
Crankcase Capacity .............................................4.2 Qts. (4 l)
Maximum Liquid Temperature .........................160°F (71°C)
Above 130°F call CAT PUMPS for inlet conditions and elastomer recommendations.
Inlet Ports (2) ................................................1-12” NPTF (1-12 NPTF)
Flushing Ports (2) (3520C, 3521C) ............14” NPTF (14” NPTF)
Discharge Ports (2) .............................................1” NPTF (1” NPTF)
Pulley Mounting ...........................................Either Side (Either Side)
Shaft Diameter ......................................................
1.378” (35 mm)
Weight ....................................................................139 lbs. (63 kg)
Dimensions (3520, 3520C,) ..........23.86 x 18.11 x
9.72” (606 x 460 x 247 mm)
Dimensions (3521 3521C, 3527) 24.33 x 18.11 x
9.72” (618 x 460 x 247 mm)