2 function testing of diaphragm capsule, 3 tightening torques – ARI Armaturen CONA S PN40 EN User Manual
Page 9

Rev. 0040805005 3614
Page 2-9
Operating and installation instructions
CONA
®
S - Ball float steam traps
7.2 Function testing of diaphragm capsule
When the diaphragm capsule is dry an cold, the diaphragm must be in contact with the top
part of the wall as shown in „Fig. 4 : Capsule OPEN“.
If the diaphragm is away from the top surface, and/or in contact with the bottom part of the
wall as shown in „Fig. 5 : Capsule CLOSED“, the capsule is defective and should be
replaced.
7.3 Tightening torques
(refer to Fig. 1- Fig. 2 page 4 and Fig. 3 page 8)
Fig. 4: Capsule OPEN
Fig. 5: Capsule CLOSED
Pos.
CONA S PN16/25/40
Torque (Nm)
DN50-100
24.1
Seat
80
27
Stud M30
40
28
Hexagon nut M30
220
44
Hexagon screw M12 (DN50)
50
44
Cheese head screw M12 (DN65-100)
50
81
Hexagon nut M12
50
top part of wall
bottom part of wall
diaphragm surface
capsule type
top part of wall
bottom part of wall
diaphragm surface
capsule type