Appendix C—Z4200 and ZH4200 Performance Curves
125
180
200
220
240
260
280
300
320
340
360
100755025
400
380
Differential Pressure (psid)
Capacity (gpm)
1
500 RPM
600 RPM
650 RPM
750 RPM
1
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.
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