Burkert Type 2101 - Manual (Page 2)

Replacing valve set:
→
Support swivel plate on the cylindrical part with the aid of a prism
or something similar.
→
Knock out the pin with a suitable pin punch.
Pin punch ø 3 mm, for spindle diameter 10 mm on the swivel
plate (see “Tab. 1”).
Pin punch ø 5 mm, for spindle diameter 14 mm on the swivel
plate (see “Tab. 1”).
Pin punch ø 6 mm, for spindle diameter 22 mm on the swivel
plate (see “Tab. 1”).
Spindle
Pin
Swivel plate
Graphite seal
→
Remove swivel plate.
→
Connect new swivel plate to the spindle.
→
Align bores of the swivel plate and spindle.
→
Support swivel plate on the cylindrical part with the aid of a prism
or something similar.
→
Insert pin into the bore.
→
Swage pin bores on both sides of the swivel plate using a chisel
or center punch.
Spindle ø Orifice Actuator size
10 15 - 40
ш 50
ш 70
14 32 - 65
ш 90
ш 130
22 80 - 100 ш 130
Tab. 1: Spindle ø in reference to orifice and actuator size
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Installing the actuator on the valve body:
→
Check the graphite seal and if required, replace it.
WArnInG!
Danger if incorrect lubricants used!
Unsuitable lubricant may contaminate the medium. In oxygen appli-
cations there is a risk of an explosion!
• In specific applications, e.g. oxygen or analysis applications, use
appropriately authorised lubricants only.
→
Grease nipple thread before re-installing the actuator (e.g. with
Klüber paste UH1 96-402 from Klüber).
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 compressed
air (5 bar): valve opens.
→
Screw actuator into the valve body.
Observe tightening torque (see “Tab. 2”).
1
2
Pilot air port
CFA, CFB, CFI
Air discharge connection
CFA, CFB
Pilot air port
CFI
Tightening torque
Orifice
(mm)
Tightening torque
(Nm)
13 / 15 45 ± 3
20 50 ± 3
25 60 ± 3
32
65 ± 3
40
50 70 ± 3
65 100 ± 3
80 120 ± 5
100 150 ± 5
Tab. 2: Tightening torque of valve body / nipples
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changing the Seal Set
WArnInG!
Risk of injury if the wrong tools are used!
It is dangerous to use unsuitable tools for installation work as the
device may be damaged.
• To remove the actuator from the valve body, use an open-end
wrench, never a pipe wrench.
DAnGer!
Risk of injury from discharge of medium and pressure!
It is dangerous to remove a device which is under pressure due to
the sudden release of pressure or discharge of medium.
• Before removing a device, switch off the pressure and vent the lines.
The packing gland cannot be replaced for the device
combination ø 70 / orifice 50.
Before the packing gland can be replaced, the actuator must
be removed from the valve body and the swivel plate removed.
The seal set for the packing gland contains:
SP10 / SP14:
Item Description Item Description
1 1 Support ring 5 1 Spindle guide
2 7 Chevron seals 6 Graphite seal
3 2 Pressure rings 7 Lubricant
4 1 Pressure spring
SP22:
Item Description Item Description
1 1 Support ring 5 1 Spacer
2 7 Chevron seals 6 Graphite seal
3 2 Pressure rings 7 Lubricant
4 1 Pressure spring
Remove the actuator from the valve body:
→
Clamp the valve body in a holding device
(applies only to valves which have not yet been installed).
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