ARI Armaturen CONA S PN40 EN - Manual (Page 3)

Rev. 0040805004 2404 Page 3
Operating and installation instructions
CONA
®
S - Ball float steam traps
4.0 Description
4.1 Scope of applications
Float-type steam traps with level- and thermal control are used for the drainage of steam
facilities.
The information complies to the Pressure Equipment Directive 97/23/EC.
It is the responsibility of the machine planner to ensure compliance.
The special markings on the valve must be taken into account.
Refer to the catalogue sheet to see which materials are used in standard versions.
Please contact the supplier or the manufacturer if you have any questions.
4.2 Operating principles
(refer to Fig. 4 page 8)
The steam trap is controlled by a swivel-mounted ball float (Pos. 24.16). An integrated
diaphragm capsule (Pos. 4) provides automatic start-up venting when cold.
If the condensate level rises in the body (Pos. 1), the ball float (Pos. 24.16) moves up and
the rotary valve (Pos. 24.4) opens an area of flow at the seat (Pos. 24.1) and condensate is
able to discharge.
If the amount of condensate decreases or if there is no condensate, the ball float (Pos.
24.16) drops and the rotary valve (Pos. 24.4) closes the seat (Pos. 24.1).
If the steam trap is only acted upon by steam, the condensate-flooded seat (Pos. 24.1)
stays shut.
ATTENTION !
- Refer to the data sheet for applications, limits on use and possibilities.
- Certain media require or preclude the use of special materials.
- The valves are designed for standard operating conditions. If conditions exceed
these requirements, e.g. aggressive or abrasive media, the operator should
state the higher requirements when ordering.
- Valves made from grey cast iron are not authorised for use in systems subject
to TRD 110.