Figure 22: Torque measuring heads
[1]
Torque switching head black in direction CLOSE
[2]
Torque switching head white in direction OPEN
[3]
Lock screws
[4]
Torque dials
1.
Loosen both lock screws [3] at the indicator disc.
2.
Turn torque dial [4] to set the required torque (1 da Nm = 10 Nm). Example:
-
Black torque switching head set to approx. 25 da Nm
≙
250 Nm for direction
CLOSE
-
White torque switching head set to approx. 20 da Nm
≙
200 Nm for direction
OPEN
3.
Fasten lock screws [3] again.
Information: Maximum tightening torque: 0.3 – 0.4 Nm
➥
The torque switch setting is complete.
9.3.
Limit switching: set
The limit switching records the travel. When reaching the preset position, switches
are operated.
Figure 23: Setting elements for limit switching
Black section:
[1]
Setting spindle: End position CLOSED
[2]
Pointer: End position CLOSED
[3]
Mark: End position CLOSED is set
White section:
[4]
Setting spindle: End position OPEN
[5]
Pointer: End position OPEN
[6]
Mark: End position OPEN is set
9.3.1.
End position CLOSED (black section): set
1.
Engage manual operation.
2.
Turn handwheel clockwise until valve is closed.
29
SAI 07.2 – SAI 16.2 / SARI 07.2 – SARI 16.2
for use in nuclear power plants
Commissioning (basic settings)
