CEN/TR 13931:2009/AC:2010
Current
The latest, up-to-date edition.
ROTODYNAMIC PUMPS - FORCES AND MOMENTS ON FLANGES - CENTRIFUGAL, MIXED FLOW AND AXIAL FLOW HORIZONTAL AND VERTICAL SHAFTS PUMPS
23-06-2010
1 Scope
2 Normative references
3 Responsibilities of manufacturer and purchaser
3.1 General
3.2 Design considerations
4 Criteria adopted in setting limiting forces and moments
4.1 Shaft-end movement
4.2 Distortion of the pump casing
4.3 Validity of force and moment values - Effects of
materials and temperature
5 Horizontal shaft pumps
5.1 Definition of pump families and summary of features
5.2 Calculation of maximum permissible forces and moments
5.3 Maximum permissible forces and moments on
standardised or modular pump families
5.3.1 General
5.3.2 Composition of forces and moments
5.3.3 Possibility of adapting the tables to
other pumps of similar design
5.4 Other horizontal pump families
5.5 Practical considerations for horizontal shaft pumps
6 Vertical shaft pumps
6.1 Definition of pump families and summary of features
6.1.1 Installation types
6.1.2 Position(s) of flange(s)
6.2 Calculation of maximum permissible forces and
moments
6.3 Maximum permissible forces and moments on
pump flanges
6.3.1 General
6.3.2 Suspended shaft pumps generally used for
transporting water ("for water")
6.3.3 "In line" pumps
6.4 Practical considerations for vertical shaft pumps
Annex A (informative) - Horizontal shaft pumps - Calculation
of forces and moments for reinforced and/or concrete
mountings for families 2, 3.B, 3.C, 5.A, 5.B, 6, 7
and 8
Annex B (informative) - Specifications relating to additional
possibilities
B.1 General
B.2 Horizontal pumps only
B.2.1 Pump stopped
B.2.2 Reinforced and/or concrete mounting
B.3 Horizontal and vertical pumps
B.3.1 Prestressing on the pipework
B.3.2 Weighting or compensation formula
B.3.3 Limit of accumulation of possibilities
Bibliography
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