Auspex Fire Руководство - Страница 9
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Печатать страницуPressure Losses Due to Individual Resistances
(Auspex Fire Fittings)
a.
The symbol "V" for flow velocity defines the location
of the proper reference velocity in the fitting and
connecting piece
b.
For reduced tees, the resistance value of the similar tee
is assumed with the smallest dimension of the reduced
tee for the flow path to be calculated
General: The loss coefficient is assigned in each case to
the volumetric flow (partial flow), which is indicated in the
diagram with the symbol "V".
Individual Resistance
Threaded
Lugged
Elbow
PEX to Cu
Lugged
Elbow
Threaded
Centre Tee,
Run Flow
Separation
Threaded
Centre Tee,
Branch Flow
Separation
Cu Centre Tee,
Run Flow
Separation
Cu Centre Tee,
Branch Flow
Separation
Cu Centre Tee
(Reducing),
Run Flow
Separation
Cu Centre Tee
(Reducing),
Branch Flow
Separation
Fittings Equivalent
Graphic
Pipe Length (FEPL)
Symbol
20
4.6
1.5
0.6
4.5
0.9
4.0
0.7
4.7
Auspex Fire Manual
25
32
4.8
9.2
1.2
2.0
0.6
0.7
4.7
10.0
0.9
0.9
3.9
4.1
0.7
–
11.1
–
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