Burkert Type 2301 - Manual (Page 14)

14
Technical data
Type 2301
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Rotate counter-clockwise (as seen from below) to bring the
actuator into the required position.
Open-end wrench
Fig. 7: Rotating with open-end wrench
8.4. Pneumatic connection
Danger!
danger – high pressure in the equipment!
• Before loosening the lines and valves, turn off the pressure and
vent the lines.
Warning!
for control function i – danger if pilot pressure fails!
For control function I control and resetting occur pneumatically.
If the pressure fails, no defined position is reached.
• To ensure a controlled restart, first pressurize the device with pilot
pressure, then switch on the medium.
risk of injury from unsuitable connection hoses!
Hoses which cannot withstand the pressure and temperature range
may result in hazardous situations.
• Use only hoses which are authorized for the indicated pressure
and temperature range.
• Observe the data sheet specifications from the hose manufacturers.
The pneumatic connection of the globe control valve can
be carried out only in connection with the appropriate
control unit.
Possible control units are:
Positioner Type 8692, 8694, 8696 and 8792
Process controller Type 8693 and 8793
8.4.1. connection of the control medium
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Connect the control medium to the pilot air port (“Fig. 8”: 1)
(3 – 7 bar; instrument air, free of oil, water and dust).
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Fit the exhaust line or a silencer to the exhaust air port
(“Fig. 8”: 3) and, if available, to the additional exhaust air port
(“Fig. 8”: 3.1).
If used in an aggressive environment, we recommend
conveying all free pneumatic connections into a neutral
atmosphere with the aid of a pneumatic hose.
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