KROHNE ALTOFLUX M 900 EN - Manual (Page 7)

Installation and operating instruction ALTOFLUX M900 and 3080 K 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”.
• 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
L
max
- L
min
≤ 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 atthe 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 liner,
solidly fitted to the flanges,
3 mm/0.12” thick
with cylindrical neck, to protect
the liner particularly at the inlet
edge against abrasive products,
3 mm/0.12” thick
Length:
30 mm/1.18”, for
≤ DN 300, ≤ 12“
100 mm/3.94”, for ≥ DN 350, ≥ 14“
Teflon
®
is a registered trademark of Du Pont.