9-2
Valco Cincinnati, Inc.
Section 9 - Specifications
MS013 - DD-1 Pump Manual (built after 9/06)
Flow Rate
To determine the discharge pressure and flow rate, do the following:
1.
Select the desired discharge pressure for pump operation. For
this example, we will use 50 psi (located on the “Discharge
Pressure” axis).
2.
Select the supplied air pressure value. For this example, we will
use 80 psi (located on the “Supply Air Pressure” curve).
3.
Project a horizontal line from 50 psi on the “Discharge Pressure”
axis to the 80 psi “Supply Air Pressure” curve.
4.
Project a line downward from this intersection until it intersects
the “GPM” axis. The flow rate is found at this intersection as 2.1
gallons/minute or 7.9 liters/minute.
5.
Go to the “Viscosity Correction Chart” in this section to correct
the flow data according to the viscosity of the adhesive being
used.
FLOW RATE
(OIL, SAE 30w, 225cp)
D
IS
CH
ARG
E
P
RE
S
S
URE
, P
S
I (
BAR)
GPM
(LITERS/MINUTE)
SUPPLY AIR PRESSURE
PSI (BAR)
