Vacuum valve (weight loaded)
12504/ 12818, 12819
BA_012504.15_EN
3 / 13
Albert Handtmann Armaturenfabrik GmbH & Co. KG
2019-02-08
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Delivery, Completeness, Storage
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Check the data of the delivery note for factual correctness and the material for
completeness. We regret that money cannot be refunded after purchase.
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Always check the material for transport damages. Possible damages have
to be informed immediately.
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Store the material in a dry place and if possible in its original packaging.
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Installation, Operation, Maintenance
Wichtiger Hinweis !
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Valve/component suitable for vertical installation.
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Valves with standard weight open at a negative pressure of 3-5 mbar.
Pressure compensation to ambient pressure by air draw in.
The valve will be closed by the counter pressure of the weight.
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Valves with pneumatic lifting open only at a limited counter pressure, i.e. tank
inside pressure. This pressure may not exceed 0.2 bar.
This may cause a malfunction of the valve.
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During the CIP process the pneumatic lifting should be activated only, if the tank
is depressurized. Other-wise, there will be explosion-like pressure
compensation, due to the escaping medium. This mixture of gas and CIP
liquid is splashed into the environment.
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The lifting itself can be performed according to the process requirements. The
duration of lifting should be about 5-20 seconds and can take place during different
cleaning steps. To prevent too strong splashing, the opening gap on the valve can
be adjusted via the stroke on the pneumatic cylinder or lifting takes place during
the startup phase of the pump with reduced power.
Further information can be found in the INFO sheet - IB_CIP lifting VV-SV.02
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During assembly/disassembly please pay attention to the operating instructions
respectively to the type plate or type marking.
DANGER
Danger – General risk!
Lifting the valve during CIP and low tank inside pressure (p < 0.2 bar) causes splashing of
penetrating CIP liquid.
An increasing tank inside pressure can be caused by thermal expansion of the CIP
medium during circulation or by pre-stressing of the tank with CO2/gas.
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Stop spraying of the tank before lifting the valve or de-pressurize the tank.
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Use fully closed splash guard.