KROHNE VFM 5090 EN - Manual (Page 7)

2.2 Sandwich type to DIN19205 / ANSI
·
·
Meter sizes DN 25, 40, 50, 80,100 and 150 (1”to
6”)
Pipe flanges
(Pressure ratings
to DIN :- DN25/PN40, 100; DN40/PN40, 100;
DN50/PN40, 64, 100; DN80/PN40, 64, 100;
DN100/PN16, 40, 64 and DN 150 / PN16, 40
to ANSI : 1” to 6”/ # 150, 300 SORF)
·
·
·
Gaskets inside diameter must be greater than the
inside diameter f of the primary head. e.g. use flat
gaskets to DIN 2690. Gaskets must not project into
the effective pipe cross sectional area.
Bolts, nuts and washers are supplied.
Check flange connections for leak-tightness after
flowmeter installation.
2.3 Flanged type to DIN 2501/ANSI B 16.5(SCH40)
Meter sizes DN 10S, 10, 15, 20, 25, 40, 50, 80 100,
150 and 200 (3/8”S to 8”)
·
· Pipe flanges
to DIN : DN 25/PN 40, 100; DN 40/PN 40, 100;
DN 50/PN 40, 64, 100; DN 80/PN 40, 64, 100; DN
100/PN 16, 40, 64; DN 150/PN 16, 40; DN 200/PN
10, 16 and
to ANSI : 1/2” to 8” / # 150, 300 SORF)
Gaskets are supplied by us with flanged units.
Center the flowmeter by sight. ·
· Check flange connections for leak-tightness after
flowmeter installation.
2.4 Temperature and pressure measurements
2.4.1 Temperature measurement
Installation in Vertical Pipe Run
VFM 5090(I) is always supplied with a temperature
sensor. This sensor is RTD (PT1000 type) and is
located within the Vortex bluff body. See figure given
for location of Temperature sensor. This sensor
provides an accurate measurement of temperature of the
medium at the vortex sensor.
Flowmeter will continuously measure medium
temperature -
To display medium temperature ·
·
·
To provide on-line T compensation for mass and
normalized flow computations.
To monitor whether the medium temperature
remains within the user specified operating
temperature limits.
Installation in Horizontal Pipe Run
Assembly Diagram of Sandwich Units
4