8
R
e
v
.2
/
01
.0
7
.2
0
1
6
Pneumatic actuator PAMS NC/NO/DA
Table 3: Position of butterfly valve disc
NC [normally closed]
NO [normally open]
Turn butterfly valve disc to closed position
Turn butterfly valve disc to open position
Assemble actuator with bracket
Assemble actuator with bracket
Put hexagon socket head cap screws (6.1) into the side holes of the bracket SV04 (3.1)
and the butterfly valve type SV04 (2.1).
Screw on hexagon nut (7.1).
Tighten screw connection with a torque of 6Nm (M6 )
4
.
6.2
Assembly of butterfly valve type Classic (see figure 2)
Plug the butterfly valve cam switch (4.2) onto the outer square of the BV disc of the butter-
fly valve (2.2). Align the tip of the BV switch cam in a line with the notch on the BV disc.
Attach compact bracket SV04 (3.2) with the hexagon socket head cap screws (5.2) to the
pneumatic actuator (1) applying a torque of 3Nm.
Undo the screw connection consisting of hexagon screw (6.2) and hexagon nut (7.2) and
pull it out of the butterfly valve (2.2).
Push the pneumatic actuator (1) with the mounted compact bracket SV04 (3.2) over the
butterfly valve (2.2) so that the outer square of the butterfly valve disc engages precisely
into the inner square of the drive shaft of the pneumatic actuator (1). In doing so, pay at-
tention to the disc position according to table 3.
Put the hexagon screws (6.2) through the BV compact bracket (3.2) and the butterfly
valve (2.2).
Screw on hexagon nut (7.2).
Tighten the screw connection with a torque of 14Nm (M8
4
) or 30Nm (M10
4
), respectively.
6.3 Disassembly
Dismount the actuator in such a way that it cannot be damaged (e.g.
by transport vehicles).
Observe the relevant national guidelines and regulations.
Disassembly is done in reverse order as described above.
4
The listed tightening torques are recommended values - see VDI 2230
