How should your valve be actuated?
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Electrical
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Mechanical
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Manual
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Pneumatical
Explanation of the individual types of actuation including examples:
Electrical: Valves that are actuated by a current-carrying coil
Mechanical: Valves that switch by other mechanical influences such as the end position of a cylinder
Manual: Valves that are activated manually, i.e. by hand lever or push button
Pneumatical: Valves that are actuated by a compressed air signal