ARI Armaturen Air vent PN 40 EN - Manual (Page 6)

Page 2-6 Rev. 0040807004 2714
Operating and installation instructions
Automatic air vent
5.2 Installation instructions for welding
(refer to page 1)
Please note that only qualified persons using appropriate equipment and working in
accordance with technical rules are allowed to install fittings by welding.
The responsibility for this lies with the system owner.
Please refer to the catalogue sheet for information on type and instructions relating to
welding socket weld ends/butt weld ends.
When welding products to the pipeline system, they should be adequately cooled to prevent
any adverse effect on the complete controller assembly (Pos. 24) or the flat gasket
(Pos. 17). The heat-affected zone should be restricted to the immediate weld seam area!
Note pre- and post-welding heat treatment in accordance with Material Fact Sheet
DIN EN 10222.
If there are plans to acid clean the system before putting it into operation, the controllers
(Pos. 24) should be dismantled completely, replaced by acid cleaning inserts, and
reassembled after acid cleaning (see 7.1). In such an event please contact the
manufacturer.
5.3 Controller adjustment
The controller is designed by the manufacturer for the relevant maximum operating
pressure – 14 bar or 21 bar – and does not need changing.
5.4 Steam trap testing through ultrasonic measurement
Testing the operation of the steam trap in the installed state is straightforward with the
“ARImetec
®
-S” mulitfunctional testing device.
Refer to data sheet “ARImetec
®
-S”.
5.5 Installation position
(refer to Fig. 1 and Fig. 2 page 4)
The automatic air vent is operated in a vertical installation position (system connection
vertically downward). The arrow on the side of the cover (Pos. 6) indicates the direction of
flow.
Always install the steam trap so that the ball float (Pos. 24.16) can work in a vertical plane.
ATTENTION !
In principle the “TOP” mark on the hood must point vertically up.