Graco 24Z051, Instructions Manual

Page: 13 / 30

Operation
3A4096F 13
Lubrication System Sizing and Calculation Guidelines
Table 1: Lubricant Output and Pressure - US
NOTE: The lubricant output per pump stroke must be less than the amount of lubricant discharged per pump
stroke.
Table 2: Lubricant Output and Pressure - Metric
1. Total Injector Volume to Dispense and Charge
a. Add together the total number of injectors in the sys -
tem.
b. From Table 1 or Table 2 above, find your Injector
Type in the first column and the related Injector Vol -
ume to Charge in the third column. Multiply this
value by the total number of injectors determined in
Step a (above).
2. Calculate the volume of lubricant in the pipeline (G):
a. Use the pipe’s inside diameter (ID) measurement to
calculate the area of the pipe.
b. Measure the length of the pipe (G) only. Do not
include the feeder lines (S) in this calculation.
c. Multiply the area of the pipe (calculated in Step a) by
the length of the pipe (measured in Step b).
3. Calculate line expansion and fluid compression in the
pipe using the 10% Rule.
a. Multiply the volume calculated in Step 2 by 10%.
4. Calculate the Total System Volume required.
a. Add together the total from Step 1 and Step 3 ONLY.
Do NOT include Step 2.
b. The Total System Volume required must be less than
the Pump Lubricant Output / Stroke provided in the
fourth column of Table 1 or Table 2.
c. If the Total System Volume required is greater than
the Pump Lubricant Output / Stroke provided in the
fourth column of Table 1 or Table 2, split the system
into two or more systems.
1 2 3 4 5 6 7
Injector
Type
Max
Injector
Output
cu. in.
Injector
Volume to
Dispense
and Charge
cu. in.
Max Pump
Lubricant
Output /
Stroke
cu. in.
Minimum Pressure
Maximum
Pressure
Recommended Pressure
Output PSI
Required Air
PSI Output PSI
Required
Air PSI Output PSI
Required Air
PSI
GL-1 0.080 0.011
0.58
1850 66
3500 120
2500 86
GL-32 0.008 0.016
1200 46 1500 58
GL-33 0.003 0.006
1 2 3 4 5 6 7
Injector
Type
Max
Injector
Output
cc
Injector
Volume to
Dispense
and
Charge
cc
Max Pump
Lubricant
Output /
Stroke
cc
Minimum Pressure
Maximum
Pressure
Recommended Pressure
Output
MPA (bar)
Required Air
MPA (bar)
Output
MPA (bar)
Required Air
MPA (bar)
Output
MPA (bar)
Required Air
MPA (bar)
GL-1 1.13 2.26
9.5
12.7 (127.6) 0.45 (4.5)
24 (241.3) 0.83 (8.3)
17.2 (172.4) 0.59 (5.9)
GL-32 0.13 0.262
8.3 (82.7) 0.3 (3.2) 10.3 (103) 0.4 (4.0)
GL-33 0.049 0.098