Suction Lift
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Suction
Lift Application |
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100 GPM of
Water at 170 F
Find the
Total Dynamic Head (TDH)
TDH
= Total Discharge Head + Total Suction Lift
Suction
Total
Suction Lift= Static + Friction
Suction
Static Lift---------------------------------------- 15'
Friction
Suction Side
Total
Length of 3" Pipe----------------------35'
(1)
90 deg 3" Elbow = 7.7' of Pipe----------7.7'
Go To
Fittings Chart -->
Total
Equivalent Length of 3" Pipe---------42.7'
Friction
= 4.96 x 42.7 / 100------------- 2.1'
See
Friction Drop Chart -->
Total
Suction Lift = 15'(Static) + 2.1'(Friction) = 17.1'
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Discharge
Total
Discharge Head = Static + Friction
Discharge
Static Head--------------------------------------22'
Friction
Discharge Side
Total
Length of 2" Pipe------------------------142'
(4)
90 deg 2" Elbow = 20.8(4x5.2)of Pipe---20.8'
Go To
Fittings Chart -->
Total
Equivalent Length of 2" Pipe ----------162.8'
Friction
= 35.8 x 162.8/100-----------------58.3'
See
Friction Drop Chart -->
Total
Discharge Head = 22'(Static) + 58.3'(Friction) = 80.3'
Total
Dynamic Head = Total Discharge Head + Total Suction Head= 80.3' + 17.1' = 97.4'
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