ARI Armaturen CONA S PN40 EN - Manual (Page 9)

Rev. 0040805002 1404 Page 9
Operating and installation instructions
CONA
®
S - Ball float steam traps
7.0 Care and maintenance
Maintenance and maintenance intervals have to be defined by the operator according to
the requirements.
7.1 Cleaning / replacing controller assembly
(refer to Fig. 1- Fig. 2 page 4 and Fig. 5 page 10)
- Dismantle hood (Pos. 16) by slackening hexagonal nuts (Pos. 28).
- Slacken union (Pos. 52) to remove pipeline at pressure compensation line.
- Remove dirt from body (Pos. 1) and hood (Pos. 16); tiny dirt particles can be removed by
flushing out the ducts and rinsing the body (Pos. 1). Clean the strainer (Pos. 2).
- If necessary dismantle the float controller (Pos. 24) and clean separately or change float
controller.
- Unscrew the hollow-core screw (Pos. 24.10) of the float controller (Pos. 24) from the body
(Pos. 1).
- Pull complete float controller (Pos. 24) out to remove, taking care with the sealing ring
(Pos. 11).
- Do not make any changes to spindle adjustment (Pos. 24.3), the float controller (Pos. 24)
is set by the manufacturer (except in the case of extremely high back pressures, when
please consult the manufacturer).
- Check lifting force of ball float (Pos. 24.16) by immersing the whole controller (Pos. 24) in
a water bath with the vent tube (Pos. 24.12) pointing upwards the spindle (Pos. 24.3) in a
horizontal position. When immersed in the water bath the ball (Pos. 24.16) must float to
the top. If the ball float (Pos. 24.16) sinks (i.e. goes under) the complete controller (Pos
24) should be replaced!
- The flat gasket (Pos. 17) and sealing ring (Pos. 11) should be replaced.
- Assemble in reverse order (refer to item 7.5).
ATTENTION !
- refer to item 10.0 and 11.0 prior to dismantling and repair work !
- refer to item 6.0 before restarting the plant !
Prior to installation, threads and seal faces should be coated with temperature-
stable lubricant (e.g. “OKS Anti-Seize Paste” white/metal-free)