Viscount II Hydraulic Pumps and Packages

Hydraulic Piston Pumps

Save up to 80% on energy costs when you choose a hydraulic piston pump!

When paired with any of Graco’s priming piston pumps, the Viscount II hydraulic air motor offers exceptional cost savings by operating on 20% of the energy used by a pneumatic motor. The Viscount II, Graco’s patented hydraulic motor, replaces the King, Bulldog or Senator motors with the 800 or 2100 pump.


  • Clean, quiet and efficient hydraulic power
  • Extremely durable hydraulic pump with long-life packing design
  • Highly efficient Viscount hydraulic motor reduces energy costs
  • Stainless steel wetted parts with neoprene packings

Check-Mate 2100 Pumps

24:1 (Quiet King Air Motor)
Maximum fluid working pressure
2400 psi
Maximum air input pressure
100 psi
Pump cycles per 3.8 liters (1 gal.)
Recommended pump speed for continuous operation
50 cycles per min
Maximum flow
23.75 liters/min (7.5 gpm) at 50 cycles/min
Air motor piston effective area
78.5 in.²
Stroke length
4.75 in.
Displacement pump effective area
3.255 in.²
Maximum pump operating temperature
Air inlet size
3/4 npsm(f)
Fluid outlet size
1–1/2” npt(m)
approx. 160 lb
Displacement Pump Weight
approx. 37 kg
Wetted parts
Carbon Steel; Chrome, Zinc, and Electroless Nickel Plating; 304 and 17–4 PH Grades of Stainless Steel; E52100 Alloy Steel; Ductile Iron; Acetal; PTFE; Ultra-High Molecular Weight Polyethylene