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Technical Data (President Pumps)
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 20:1
Maximum fluid working pressure 25 MPa, 248 bar (3600 psi)
Maximum air input pressure 1.2 MPa, 12 bar (180 psi)
Pump cycles per 3.8 liters (1 gal.) 48
Fluid flow at 60 cycles/min 4.5 liters/min (1.2 gpm)
Air motor effective diameter 108 mm (4.25”)
Stroke length 102 mm (4”)
Displacement pump effective area 4.5 cm@ (0.697 in.@)
Maximum pump operating temperature 82_C (180_F)
Weight 22.7 kg (50 lb)
Wetted parts Carbon Steel; E52100, 41L40, and 4140 Alloy Steel;
304, 316 and 17-4 PH Grades of Stainless Steel;
Ductile Iron; Zinc and Nickel Plating; PTFE; Acetal;
Ultra-High Molecular Weight Polyethylene (not used on
Displacement Pump 235540)
Sound Pressure Levels (dBa)
(measured at 1 meter from unit)
Input Air Pressures at 15 cycles per minute
Air Motor 40 psi (0.28 MPa, 2.8 bar) 70 psi (0.48 MPa, 4.8 bar) 100 psi (0.7 MPa, 7 bar)
President 73.6 dB(A) 78.3 dB(A) 80.9 dB(A)
Sound Power Levels (dBa)
(tested in accordance with ISO 9614–2)
Input Air Pressures at 15 cycles per minute
Air Motor 40 psi (0.28 MPa, 2.8 bar) 70 psi (0.48 MPa, 4.8 bar) 100 psi (0.7 MPa, 7 bar)
President 87.4 dB(A) 92.1 dB(A) 94.6 dB(A)
