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3 replacing the wearing parts – Burkert Type 2101 User Manual

Page 26

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26

Maintenance,Cleaning

10.3 replacing the wearing parts

10.3.1 replacing the valve set

The valve set consists of
• Swivel plate
• Pin
• Graphite seal
Before the valve set can be replaced, the actuator must be removed
from the valve body.

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.

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.

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).

noTe!

damage to the seat seal or the seat contour!

▶ When removing 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.

Using a suitable open-end wrench, place the wrench flat on the
tube.

Unscrew the actuator from the valve body.

Actuator

Nipple

Valve body

Air discharge connection

CFA, CFB

Pilot air port

CFI

Pilot air port

CFA, CFB, CFI

Flats for open-end

wrench

Release bore

2

1

Fig. 20: Designation parts

english

Type 2101