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Proportioning Pump Chart
Displacement pump combinations for mix ratio, pres-
sure ratio and volume per cycle for each model.
Mix
Part A
1:1
222012
1-1/4:1 222019
1-1/2:1 222019
2:1
222012
2-1/2:1 222012
3:1
222012
4:1
222012
* Exceeds the pressure ratiing of the pumps.
To select the appropriate relief valve:
1. Determine the Maximum Pump Fluid Pressure of
your system.
2. Verify that all system components meet or exceed
the pressure ratings of the pressure relief valve
that you have selected.
3. Select the lowest pressure relief valve with a maxi-
mum working pressure that exceeds the Maximum
Pump Fluid Pressure.
16
307132
Operation
Part B
Part A
Pressure
Ratio
(fluid to air)
222012
None
34:1*
222015
222019
38:1*
222017
222019
41:1*
222012
222012
23:1
222015
222012
24:1
222017
222012
25:1
222019
222012
27:1
Relief Valve Selection Table
CAUTION
With three displacement pump models, the outer two
displacement pumps must be identical models to
balance forces and avoid damaging the pumps.
Volume per
Fluid Pressure Developed
Cycle
psi (MPa, bar)
Gallon (liter)
at incoming air pressure of
psi (MPa, bar)
0.046 (0.17)
2500 (17, 170)
74 (0.5, 5.2)
0.034 (0.13)
2500 (17, 170)
66 (0.4, 4.5)
0.038 (0.14)
2500 (17, 170)
61 (0.4, 4.2)
0.068 (0.26)
2300 (16, 161)
100 (0.7, 7)
0.064 (0.24)
2400 (16.8, 168)
100 (0.7, 7)
0.061 (0.23)
2500 (17, 170)
100 (0.7, 7)
0.057 (0.22)
2500 (17, 170)
93 (0.6, 6.4)
Part
Working Pressure
Number
Range psi (MPa, bar)
Minimum
Maximum
237060
475
575
(3.3, 33)
(4, 40)
237061
950
1150
(6.6, 66)
(7.9, 79)
237112
1400
1800
(9.7, 97)
(12.4,
124)
237062
1800
2300
(12.4,
(15.9,
124)
159)
Cracking Pressure
Range psi (MPa, bar)
Minimum
Maximum
710
860
(4.9, 49)
(5.9, 59)
1425
1725
(9.8, 98)
(11.9,
119)
2140
2590
(14.8,
(17.9,
148)
179)
2850
3450
(19.7,
(23.8,
197)
238)
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