Graco 256200 Water Pump User Manual


 
Technical Data
28 312766N
Performance Chart
Calculate Fluid Outlet Pressure
(black curves)
To calculate fluid outlet pressure (MPa/bar/psi)
at a specific fluid flow (lpm/gpm) and operating
air pressure (MPa/bar/psi), use the following
instructions and pump data chart.
1. Locate desired fluid flow along bottom of
chart.
2. Follow vertical line up to intersection with
selected air pressure curve (black). Follow
horizontally left to read fluid outlet pres-
sure.
Calculate Pump Air
Consumption (gray curves)
To calculate pump air consumption (m
3
/min or
scfm) at a specific fluid flow (lpm/gpm) and air
pressure (MPa/bar/psi), use the following
instructions and pump data chart.
1. Locate desired fluid flow along bottom of
chart.
2. Follow vertical line up to intersection with
selected air pressure curve (gray). Follow
horizontally right to read air consumption.
D
A
B
C
A
B
C
D
Outlet Pressure in PSI (MPa, bar)
Air Consumption in SCFM (m
3
/min)
Fluid Flow in gpm (lpm)
Key:
A 180 psi (1.2 MPA, 12.4 bar)
B 100 psi (0.7 MPA, 7 bar)
C 70 psi (0.5 MPa, 7.8 bar)
D 40 psi (0.3 MPa, 2.8 bar)
350
300
250
200
150
100
50
0
(24.5, 245)
(21, 210)
(17.5, 175)
(14, 140)
(10.5, 105)
(7, 70)
(3.5, 35)
24
(0.672)
20
(0.560)
16
(0.448)
12
(0.336)
8
(0.224)
4
(0.112)
00.5
(1.9)
(3.8) (5.7) (7.6)
(9.5) (11.4)
11.5 2
2.5 3
(13.2)
3.5
(15.1)
4