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Burkert Type 2101 User Manual

Page 20

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20

Installation

8.3.2 install actuator (welded body)

Graphite seal

Fig. 14: Graphite seal

Check the graphite seal and if required, replace it.

WarninG!

danger if incorrect lubricants used!
Unsuitable lubricant may contaminate the medium. In oxygen
applications 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 com-
pressed air (5 bar): valve opens.

Screw actuator into the valve body.
Observe tightening torque (see “Tab. 5: Tightening torques of
valve body / nipples”)
.

1

2

Pilot air port

CFA, CFB, CFI

Air discharge connection

CFA, CFB

Pilot air port

CFI

Fig. 15: Connections

tightening torques of valve body / nipples
dn

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. 5: Tightening torques of valve body / nipples

english

Type 2101