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1 GENERAL PT / PG / PD REPAIR<br />
1.15 Performance Curves<br />
These values are average values based on pumps operating at sea level. To determine accurate values for pump<br />
capacity, altitude and other factors affecting suction lift and discharge head must be considered. Consult WACKER<br />
Corporation for additional information.<br />
PT Pumps<br />
Top curve - Gasoline powered pumps<br />
Bottom curve - Diesel powered pumps<br />
On the PT Series, diesel powered pumps operate at lower engine speeds than those driven by gasoline powered<br />
engines. This reduces the amount of water which they can displace and also lowers the discharge pressure, resulting<br />
in a slightly lower performance curve.<br />
TO READ PUMP CAPACITY: first, determine the total head being applied to the pump and read across to the curve<br />
representing the correct engine type and suction lift.<br />
Note: Each leg on the curve indicates a different suction lift.<br />
After locating this point on the curve, read down to find the approximate capacity for the pump.<br />
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1033SD95
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