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Technical Data
(Model 237274 Reduced Icing Quiet Bulldog Pump)
WARNING
Be sure that all fluids and solvents used are chemically compatible with the
Wetted Parts listed below. Always read the manufacturer’s literature before
using fluid or solvent in this pump.
Category Data
Ratio 31:1
Maximum fluid working pressure 21 MPa, 214 bar (3100 psi)
Maximum air input pressure 0.7 MPa, 7 bar (100 psi)
Pump cycles per 3.8 liters (1 gal.) 21
Fluid flow at 60 cycles/min 10.6 liters/min (2.8 gpm)
Air motor piston effective area 248 cm@ (38 in.@)
Stroke length 120 mm (4.75 in.)
Displacement pump effective area 8 cm@ (1.24 in.@)
Maximum pump operating temperature 82_C (180_F)
Air inlet size 3/4 npsm(f)
Fluid outlet size 1” npt(f)
Weight approx. 73 kg (160 lb)
Displacement pump weight approx. 37 kg (81 lb)
Wetted parts Carbon Steel; Chrome, Zinc, and Nickel Plating;
304, 316, 440, and 17–4 PH Grades of Stainless Steel;
Alloy Steel; Ductile Iron; PTFE; Glass-Filled PTFE;
Ultra-High Molecular Weight Polyethylene
Sound Pressure Levels dB(A)
(measured at 1 meter from unit)
Input Air Pressures at 15 cycles per minute
Air Motor
0.28 MPa, 2.8 bar
(40 psi)
0.48 MPa, 4.8 bar
(70 psi)
0.63 MPa, 6.3 bar
(90 psi)
0.7 MPa, 7 bar
(100 psi)
Reduced Icing Quiet Bulldog 81.5 dB(A) 83.6 dB(A) 85.6 dB(A) 85.8 dB(A)
Sound Power Levels dB(A)
(tested in accordance with ISO 9614–2)
Input Air Pressures at 15 cycles per minute
Air Motor
0.28 MPa, 2.8 bar
(40 psi)
0.48 MPa, 4.8 bar
(70 psi)
0.63 MPa, 6.3 bar
(90 psi)
0.7 MPa, 7 bar
(100 psi)
Reduced Icing Quiet Bulldog 90.2 dB(A) 93.5 dB(A) 94.9 dB(A) 93.3 dB(A)