Preparatory Work - Burkert 2730 Manuel D'utilisation

Type 2730 / 2731 / 2731K
installation for self-drainage of the body
To ensure self-drainage:
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Install body inclined by an angle α = 15° – 35° to the horizontal.
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Forged and cast body: Mark on the body must point upwards
(12 o'clock position, see "Fig. 16").
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Observe an inclination angle of 1° – 5° to the line axis.
Mark
Angle α: 15 °– 35°
Inclination to the line axis 1° – 5°
Fig. 16: Installation position for self-drainage of the body
7.2.2. preparatory work
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Clean pipelines (sealing material, swarf, etc.).
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Support and align pipelines.
Please request installation for 3A certification explicitly.
4)
Installation
4)
α
devices with Vg/Vs/Va welded body:
noTe!
damage to the diaphragm or the actuator!
• Before welding in the body, remove the actuator.
Remove the actuator from the valve body:
noTiCe!
damage to the diaphragm 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 pilot air port with com-
pressed air (5 bar): valve opens.
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Remove actuator with diaphragm by loosening the body screws.
Actuator
Upper pilot air port
Lower pilot air port
Diaphragm
Body screws (4x)
Valve body
Fig. 17: Installation
english
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