Example: Elbow close to the pump suction inlet
Correct
Incorrect
The correct distance between the inlet flange of the pump and
the closest elbow must be at least five pipe diameters.
1
2
1.
Enough distance to prevent cavitation
2.
Eccentric reducer with a level top
Example: Suction piping equipment
Correct
Incorrect
1
2
3
4
5
1.
Suction pipe sloping upwards from liquid source
2.
Long-radius elbow
3.
Strainer
4.
Foot valve
5.
Eccentric reducer with a level top
1
1.
Air pocket, because the eccentric reducer is not
used and because the suction piping does not
slope gradually upward from the liquid source
Discharge piping checklist
Checklist
Check
Explanation/comment
Checked
Check that an isolation valve is
installed in the discharge line.
The isolation valve is required for:
• Priming
• Regulation of flow
• Inspection and maintenance of the pump
See Example: Discharge piping equipment for
illustrations.
Installation
38
Model HT 3196 i-FRAME Installation, Operation, and Maintenance Manual
Содержание HT 3196 i-FRAME
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