307-809
41
Technical Data
3:1 Ratio President Pumps, Models 220–561, 220–564, 237–222, 237–223, and 239–819
Maximum Working Pressure
3.4 MPa, 34 bar (500 psi)
. . . . .
Air Operating Range
0.1–1.1 MPa, 1.4–11 bar (20–166 psi)
.
Air Consumption
See Performance Chart
. . . . . . . . . . . . . . . . .
Continuous Duty Delivery
35.3 liter/min (9.3 gpm)
. . . . . . . . . .
Pump Cycles Per Liter (gallon)
1.7 (6.25)
. . . . . . . . . . . . . . . . .
Maximum Recommended Pump Speed
60 cycles/min
. . . . .
Air Inlet
1/2 npt(f)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fluid Inlet
1–1/2” npt(f)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fluid Outlet
1” npt
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wetted Parts
Model 220–561
Carbon Steel, Stainless Steel,
. . . . . . . . .
Ultra-High Molecular Weight Polyethylene, Leather, PTFE
Model 220–564
Chrome-Plated Stainless Steel,
. . . . . . . .
Ultra-High Molecular Weight Polyethylene, Leather, PTFE
Model 237–223
Carbon Steel, Stainless Steel,
. . . . . . . . .
Ultra-High Molecular Weight Polyethylene, PTFE
Model 237–222
Chrome-Plated Stainless Steel,
. . . . . . . .
Ultra-High Molecular Weight Polyethylene, PTFE
0
50
100
150
200
250
300
350
400
0
2
4
6
8
10
12
14
PUMP DELIVERY (Test Fluid: No. 10 Motor Oil)
PUMP
OUTLET PRESSURE
AIR CONSUMPTION
12
25
37
50
62
74
CPM
87
8
15
23
30
38
46
54
GPM
l/min
30
20
10
0
1.96
0.84
0.28
CFM
m
3
/min
70
0.56
40
1.12
50
1.40
60
1.68
A
B
C
A
B
C
1.4, 14
0.7, 7
PSI
1.05, 10.5
0.35, 3.5
1.7, 17
2.45, 24.5
MPa, BAR
2.1, 21
2.8, 28
To find Outlet Pressure
(MPa/bar/psi) at a specific
delivery (liter/min or gpm) and operating air pressure
(MPa/bar/psi):
1. Locate desired delivery along bottom of chart.
2. Read vertical line up to intersection with
selected fluid outlet pressure curve (black
curves). Curve slopes from left to right.
Follow left to scale and read outlet pressure.
To find Pump Air Consumption
(m
3
/min or
CFM/min) at a specific delivery (liter/min or gpm)
and operating air pressure (MPa/bar/psi):
1. Locate desired delivery along bottom of chart.
2. Read vertical line up to intersection with
selected air consumption curve (gray curves).
Curve slopes from right to left. Follow right to
scale and read air consumption.
A
0.7 MPa, 7 bar (100 psi) air pressure
B
0.49 MPa, 4.9 bar (70 psi) air pressure
C
0.28 MPa, 2.8 bar (40 psi) air pressure
