beautypg.com

Burkert Type 2012 User Manual

Page 13

background image

13

Installation

Type 2012

8.3.2 install actuator (welded body)

Graphite seal

Fig. 6: 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 applica-
tions 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 lower control air connection with
compressed air (6 bar).

Screw actuator into the valve body.

tightening torques of valve body / nipples

nominal diameter

65

80

100

tightening torques

100 ± 5

120 ± 5

150 ± 5

Tab. 1: Tightening torques of valve body / nipples

8.3.3 rotating the actuator

The position of the connections can be aligned steplessly by rotating
the actuator through 360°.

note!

damage to the seat seal or the seat contour!

▶ When rotating the actuator, ensure that the valve is in open

position.

procedure:

Clamp the valve body in a holding device
(applies only to valves which have not yet been installed).

Control function A: pressurize the lower control air connection
with compressed air (6 bar): valve opens.

Counter on the flats of the nipple with a suitable open-end wrench.

Warning!

risk of injury from discharge of medium and pressure!
If the direction of rotation is wrong, the body interface may become
detached.

▶ Rotate the actuator module in the specified direction only.

english