Graymills DDP 1' Pump OMI - Manual (Page 25)

25
Performance Charts
Test Conditions: Pump tested in water with inlet submerged.
0
20
40
60
80
100
120
0 5 10 15 20 25 30 35 40
(0.7, 7)
Fluid Pressure Curves
A at 120 psi (0.7 MPa, 7 bar) air pressure
B at 100 psi (0.7 MPa, 7 bar) air pressure
C at 70 psi (0.48 MPa, 4.8 bar) air pressure
D at 40 psi (0.28 MPa, 2.8 bar) air pressure
A
B
D
To find Fluid Outlet Pressure
(psi/MPa/bar) at a specific fluid flow
(gpm/lpm) and operating air pressure
(psi/MPa/bar):
1. Locate fluid flow rate along bottom of
chart.
2. Follow vertical line up to intersection
with selected fluid outlet pressure curve.
3. Follow left to scale to read fluid outlet
pressure.
FLUID OUTLET PRESSURE
––
psi (MPa, bar)
(0.55, 5.5)
(0.41, 4.1)
(0.28, 2.8)
(0.14, 1.4)
C
(0.84, 8.4)
FLUID FLOW--gpm (lpm)
(38) (133) (152) (76) (114) (95) (57) (19)
0
10
20
30
40
50
60
0 5 10 15 20 25 30 35 40
FLUID FLOW--gpm (lpm)
AIR CONSUMPTION
––
scfm (cubic meters/min)
To find Pump Air Consumption (scfm or
m
#/min) at a specific fluid flow (gpm/lpm) and
air pressure (psi/MPa/bar):
1. Locate fluid flow rate along bottom of chart.
2. Read vertical line up to intersection with
selected air consumption curve.
3. Follow left to scale to read air consumption.
(38) (133)
(1.68)
(152) (76) (114)
(1.40)
(1.12)
(0.84)
(0.56)
Air Consumption Curves
A at 120 psi (0.7 MPa, 7 bar) air pressure
B at 100 psi (0.7 MPa, 7 bar) air pressure
C at 70 psi (0.48 MPa, 4.8 bar) air pressure
D at 40 psi (0.28 MPa, 2.8 bar) air pressure
B
C
A
D
(0.28)
(95) (57) (19)