Burkert S030 Kullanım Talimatları Kılavuzu - Sayfa 7
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Selection example:
- Specification: if the nominal flow is 10 m
sioning of the optimal flow rate must be contained in 2 to
3m/s
- Answer: on the chart, the intersection of flow rate and
flow velocity gives the appropriate diameter, DN40 or
DN50 for fittings with *.
* For fittings:
- with external threads according to SMS 1145,
- with welding ends according to SMS 3008, BS 4825-1 /
ASME BPE / DIN 11866 series C, DIN 11850 series 2 /
DIN 11866 series A / EN 10357 series A
- with clamp connections according to SMS 3017,
BS 4825-3 / ASME BPE, DIN 32676 series A
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24
→
Install the fitting on the pipe to comply with the
upstream and downstream distances defined by
standard EN ISO 5167-1 (see Fig. 3).
50 x DN 5 x DN
With control valve
25 x DN 5 x DN
Pipe with 2 elbows
at 90°
18 x DN 5 x DN
With pipe expansion
Fig. 3:
Upstream and downstream distances depending
on the design of the pipes.
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26
/h the dimen-
3
40 x DN 5 x DN
Pipe with 2 elbows at 90°
in 3 dimensions
20 x DN 5 x DN
Pipe with 1 elbow at 90°
or 1 T-piece
15 x DN 5 x DN
With pipe
reduction
gpm
m
/h
3
l/min
1000
200
3000
2000
500
100
1000
50
200
500
100
20
200
50
10
100
5
20
50
10
2
20
5
1
10
0.5
2
5
1
0.2
2
0.5
0.1
1
0.05
0.2
0.5
0.1
0.02
0.2
0.05
0.01
0.1
0.3 0.5
0.3 0.5
1
3
→
Use a flow conditioner, if necessary, to obtain the best
accuracy.
→
Prevent the formation of air bubbles in the pipe (see
Fig. 4).
→
Ensure the pipe is always filled with liquid (see Fig. 5).
Correct
Correct
Direction of fluid flow
Fig. 4:
Additional recommendations on installation
DN65
DN50 (DN65)*
DN40 (DN50)*
DN32 (DN40)*
DN25 (DN32)*
DN20 (DN25)*
DN15 (DN15 or
DN20)*
DN08
DN06
5
m/s
1
3
10
5
10
30
fps
Fluid velocity
English
Incorrect
Incorrect
English
25
25
27
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