Truck Pump—Z3200 Performance Curves

^* This 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. Restriction 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 the liquefied petroleum gases. See the Guide to Corken Liquefied Gas Transfer Equipment CP226 for additional information.