Operating Manual
Double Seal Valve
75100 / 75200
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2011-05-31
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5. Disassembly / Assembly and Maintenance
5.1 Safety Instructions and Warning Notices
Caution – danger zone warning!
Please pay attention to the following prior to installation and commissioning:
• Check the valve for visible external and internal damage.
• Check the valve housing inside for residues.
• Check the current system status (pressure, temperature, medium).
Please pay attention to the following if malfunctions occur and prior to
disassembly:
• The valve must be switched off and secured against re-use in the case of
malfunctions (disconnect the power and air supply).
• Check the current system status (pressure, temperature, medium).
Risk of injuries!
Risk of crushing!
During transportation and assembly / disassembly there is a risk of finger, hand
and foot injuries.
Never place your hand inside the valve housing when the compressed air
supply is connected. When working on the valve, make sure accidental opening
and closing of the valve is prevented.
Personal injuries!
The valve contains pretensioned pressure springs. When opening the valve, the
upper part of the housing can suddenly spring open. The pressure springs must
be mechanically blocked in advance or, if possible, the valve should be controlled
pneumatically.
Risk of burns!
If the valve is integrated in a piping system in which the media can reach a
temperature of more than 50°C, the surface temperature of the valve can also
reach this value.
Risk of scalding, chemical burns!
If the valve is integrated in a piping system that has not been fully emptied or is
still pressurised, there is a risk of scalding and other personal injuries.