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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, 1.4–1
1 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 W
eight Polyethylene, Leather
, PTFE
r
Model
220–564
Chrome-Plated Stainless Steel,
.
. . . . . . .
Ultra-High
Molecular W
eight Polyethylene, Leather
,
PTFE r
Model
237–223
Carbon Steel, Stainless Steel,
.
. . . . . . . .
Ultra-High Molecular W
eight Polyethylene, PTFE
r
Model 237–222
Chrome-Plated Stainless Steel,
.
. . . . . . .
Ultra-High
Molecular W
eight Polyethylene, PTFE
r
0
50
100
150
200
250
300
350
400
02468101214
PUMP DELIVERY (T
est Fluid: No. 10 Motor Oil)
PUMP OUTLET PRESSURE
AIR CONSUMPTION
12 25 37 50 62 74
CPM
87
8 1523 3038 4654
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.
T
o 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