Burkert Type 2702 - Manual (Page 14)

14 - 2702
C
ommissioning
english
1. Remove the electrical and pneumatic supplies from the Top Control.
2. Pull off the pneumatic hose between Top Control and actuator at
control connection of actuator.
3. Control function A:
Pressurize the lower pilot air port of the actuator with compressed air
(6 bar),
so that the plug is lifted from the valve seat and is not damaged.
Control function B:
With control function B, no compressed air must beapplied for this
purpose.
4. Remove the actuator in the open valve position by unscrewing the
nipple from the valve body.
5. Before reinstalling the actuator (in the open valve position), grease the
nipple thread with stainless steel lubricant,
e. g. Klüberpaste UH1 96-402 from company Klüber.
6. Replace the graphite seal.
7. After tightening the threaded nipple, align the pilot air ports by turning
the actuator.
InstallatIon of the valve
note When using in an aggressive environment, you are advised to connect pneumatic hoses to all
free control connections and place their other ends in a neutral atmosphere.
threaded
nipple
May be installed in any position, but preferably with the actuator above.
Observe the flow direction - general rule for control valves: flow direction: Below seat
Clean the piping of contamination!
Before connecting the valve body, take care that piping is aligned!
In the case of weld-end bodies, be sure to remove the actuator before welding.
attentIon!
The valve must be for this in the opened position.
topControl
actuator
valve body
lower
pilot air
port
CaUtIon!
Use of the incorrect lubricant causes contamination!
For special applications such as for oxygen and analysis, use only the approved lubricants.
Procedure for topControl type 8630