KROHNE AQUAFLUX EN - Manual (Page 7)

7
5 Installation in the pipeline
• Installation material not included, to be provided by customer (stud bolts,
nuts, gaskets, etc.)
• Pipe flanges and operating pressure: refer to tables on ”limits” in Section 11.
• Distance between pipe flanges
see fitting dimension ”a”, in Section 10 ”Dimensions and weights”.
L
max
L
min
• Position of flanges
Install flowmeter in line with the pipe
axis. Pipe flange faces must be
parallel to each other,
max. permissible deviation:
L
max
- L
min
≤≤
0.5 mm
≤
0.02”
• Hard rubber liner
Please note the table on Page 4 for temperature limits of operation,
storage and transport.
• Teflon ® -PTFE liner
Install at the lowest point of the pipe run to avoid an excessive vacuum condition at
the meter. Do not remove or damage liner, which is formed around the flange edges.
• Gaskets
Use gaskets suitable for the application and appropriate to the liner, not included
with flowmeter, to be provided by customer.
• Grounding rings / protective rings (option)
On plastic pipes and internally coated metal pipelines, grounding rings must form the
conductive connection with the fluid. Refer to Section 7 ”Grounding for electrical connection.
Grounding ring No. 1 Grounding ring, protective ring No. 2 Grounding ring, protective ring No. 3
3 mm/0.12” thick for flowmeters with Teflon ® -PTFE with cylindrical neck, to protect the liner
liner, solidly fitted to the flanges, particularly at the inlet edge against
3 mm/0.12” thick abrasive products, 3 mm/0.12” thick.
Length:
1 30 mm/1.18”, for
≤
DN 300,
≤
12“
100 mm/3.94”, for
≥
DN 350,
≥
14“
Teflon ® is a registered trademark of Du Pont.