6 Installation at Site
24 of 36
BOA-Control/ BOA‑Control IMS
Installation position and upstream/downstream stabilisation distances
Minimum upstream stabilisation distance: 5 x DN
For more details see BOA-Control IMS type series booklet
Welding work on the pipeline in the proximity of the sensors is not permitted.
1) Sensor in front,
handwheel on top.
2) Sensor in back,
handwheel below.
3) Sensor below,
handwheel in front.
Arrangement is not
allowed.
4) Sensor on top,
handwheel in back.
Arrangement is not
allowed.
Vertical installation: For installation in vertical piping, no restrictions apply with
regard to the installation position of the valves.
Horizontal
installation:
Installation with the valve stem in a horizontal position is not
allowed, to prevent air bubbles or deposits in the measuring
plane.
Avoid installing valves of DN 250 to DN 350 with the stem pointing downwards to
prevent dirt deposits between the folds of the bellows which might cause valve
failure.
For optimum measuring accuracy, the following straight, minimum upstream
stabilisation distances free from any sources of potential interference must be
provided, irrespective of the installation position:
▪
At least 5 x DN between BOA-Control/BOA-Control IMS and single sources of
interference such as single 90° pipe bends or open shut-off valves
▪
At least 10 x DN between BOA-Control/BOA-Control IMS and turbulence-
producing elements such as pumps, control valves or combinations of pipe bends.
Installation in the return line is recommended. Avoid installing valves at the highest
points in the system.
Avoid any sources of potential interference in the upstream stabilisation area (such
as, for example, immersion sensors or non-standardised sealing elements).
Assess any sources of interference in accordance with EN ISO 5167-1, Section 7.3
(previously DIN 1952, Section 6).
A downstream stabilisation distance is not required!
NOTE
The length of the cables connecting the sensors to BOATRONIC must
not
be
changed.
6.4 Insulation
For handling hot fluids, the valve should be insulated in accordance with the German
energy-saving regulations.
