20
The chart shows approximate delivery rates as seen in vapor equalized propane systems at 70°F (21°C) with no pressure
loss in pump suction piping.
The following will cause increased vaporization of the liquid in the pump suction, adversely affecting the delivery:
1. Restrictions in the suction piping such as internal valves, excess flow valves, elbows, etc.
2. Restriction or lack of a vapor return line
3. Temperatures below 70°F (21°C)
This loss of delivery is not caused by the pump but is a result of the natural thermodynamic properties of
liquefied petroleum gases. See the “GUIDE TO CORKEN LIQUEFIED GAS TRANSFER EQUIPMENT” (CP226)
for additional information.
Appendix C—Z4200 Performance Curves
125
180
200
220
240
260
280
300
320
340
360
100
75
50
25
Differential Pressure (psi)
Capacity (gpm)
500 RPM
600 RPM
650 RPM
750 RPM
Summary of Contents for Corken Z-Series
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