Burkert Type 2100 - Manual (Page 27)

27
Maintenance, cleaning
NOTE!
Damage to the seat seal or the seat contour!
• When installing the actuator, ensure that the valve is in open
position.
→
Control function A pressurize the pilot air port 1 with com-
pressed air (5 bar): valve opens.
→
Screw actuator into the valve body.
Observe tightening torque (see “Tab. 6”).
Tightening torques of valve body / nipples
Orifice
Tightening torque [Nm]
15 45 ±3
20 50 ±3
25 60 ±3
32
65 ±3
40
50
70 ±3
65 100 ±3
Tab. 6: Tightening torques of valve body / nipples
1
2
Pilot air port
CFA, CFB, CFI
Air discharge connection
CFA, CFB
Pilot air port
CFI
Fig. 21: Connections
If the position of the pilot air ports for installation of the
hoses is unfavorable, these can be aligned steplessly by
rotating the actuator through 360°.
The procedure is described in the chapter entitled “8.3.3.
Rotating the actuator”.
11.3.2. Replacing the packing gland
The packing gland cannot be replaced for the device
combination ø 70 / orifice 50.
The seal set for the packing gland contains
• 1 support ring
• 7 chevron seals
• 2 pressure rings
• 1 pressure spring • 1 spindle guide
• Graphite seal
• Lubricant
english
Type 2100