Burkert Type 2012 - Manual (Page 12)

12
Installation
Type 2012
8.2 Before installation
installation position: any, preferably with the actuator face up.
procedure:
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Before connecting the valve, ensure the lines are flush.
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Observe direction of flow.
8.2.1 preparatory work
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Clean pipelines (sealing material, swarf, etc.).
devices with welded body
Remove the actuator from the valve body:
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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 in open
position.
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control function a:
pressurize the lower control air connection with compressed air
(6 bar): valve opens.
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Using a suitable open-end wrench, place the wrench flat on the
tube and unscrew the actuator from the valve body.
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Do not loosen screw above the nipple.
8.3 installation
Warning!
risk of injury from improper installation!
Installation with unsuitable tools or non-observance of the tightening
torque is dangerous as the device may be damaged.
▶ For installation use an open-end wrench, never a pipe wrench.
▶ Observe the tightening torques (see “Tab. 1: Tightening torques
of valve body / nipples”).
dirt trap for devices with authorization 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.
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If the authorisation also applies to stainless steel bodies, the same
type of dirt trap must be attached in front of the globe control valve.
8.3.1 installation of the valve body
Welded bodies
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Weld valve body in pipeline system.
Other body versions
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Connect body to pipeline.
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