Burkert 8840, Operating Instructions Manual, Page: 11 / 19

11
Installation
Type 8840
7.1 Preparatory work
The installation position is optional. Preferably with actuator face
up.
→ Observe flow direction.
→ Observe type of incoming flow.
→ Remove contaminants from pipelines.
→ Ensure that the pipelines are aligned.
7.1.1 Install dirt traps
Dirt trap for devices with approval in accordance with DIN EN 161
In accordance with DIN EN 161 (Automatic shut-off valves for
gas burners and gas appliances) a dirt trap must be connected
upstream of the valve and prevent the insertion of a 1 mm plug
gauge.
For devices with stainless steel body:
→ Install dirt traps upstream of the valve.
7.2 Install the valve body
Devices with weld ends connection:
→
Weld valve body in pipeline system. Please observe chapter
“7.3”.
Devices with thread or clamp connection:
→
Connect valve body to pipeline.
7.3 Devices with weld ends connection
note
Damage to the actuator during welding of the valve body into
the pipeline.
▶
Remove the actuator before welding into the pipeline.
7.3.1 Remove the actuator
→
Clamp the valve body in a holding device.
note
damage to the seat seal or the seat contour.
▶
When removing the actuator, ensure that the valve is open.
→
For actuators CLASSIC and control function A:
pressurize lower pilot air port with compressed air (5 bar):
valve opens.
→ For actuator ELEMENT and control function A:
pressurize the pilot air port 1 with compressed air (5 bar):
valve opens.
→
Counter on the flats of the nipple with a suitable open-end
wrench.
→ Unscrew the actuator.
english