KROHNE VFM 3100 EN - Manual (Page 11)

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Table 3. VFM 3100 Mounting Arrangements
Single Measurement (with and without isolation valves)
Housing Above Pipe
GAS Recommended mounting.
STEAM Recommended for super-heated steam with adequate
insulation. Not recommended for saturated steam.
LIQUID Adequate self-purging. Recommended mounting.
Isolation Valve may cause temporary start-up error
due to entrapped air.
Vertical Pipe
GAS Recommended mounting.
STEAM Recommended for super-heated steam with adequate
insulation. Not recommended for saturated steam.
LIQUID Adequate self-purging. Recommended mounting.
Housing Below Pipe
GAS Recommended for clean applications only.
STEAM Not recommended for super-heated steam.
Recommended for saturated steam.
LIQUID Recommended when self-purging is important.
Housing Beside Horizontal Pipe
GAS Recommended mounting.
STEAM Not recommended for saturated steam. Recommended
for superheated steam provided the pipe is adequately
insulated.
LIQUID Adequate self-purging, recommended mounting.
Housing to the Side and Below Horizontal Pipe
Note: Requires flanges with eight or more bolts
GAS Not recommended
STEAM Not recommended
LIQUID Recommended.
Dual Measurement (with or without isolation valves)
Housing Above Pipe
GAS Recommended mounting.
STEAM Recommended for super-heated steam with adequate
insulation. Not recommended for saturated steam.
LIQUID Not self-purging. May cause errors at startup.
Not recommended for batch operations.
Vertical Pipe
GAS Recommended mounting.
STEAM Recommended for super-heated steam with adequate
insulation. Not recommended for saturated steam.
LIQUID Adequate self-purging. Recommended mounting.
Housing Below Pipe
GAS Not recommended.
STEAM Not recommended for super-heated steam.
Recommended for saturated steam.
LIQUID Self-purging. Recommended for batch operations.