Intended use

The intended use of the Switchover -2P-AC is the automatic switchover of a gas from the side that is currently in operation to the reserve side when the gas supply situation requires it.

It is fitted upstream of the pressure control panel and is used for pneumatic switching between 2 gas sources. The current inlet pressure can be read off on the pressure gauge on the corresponding side. The yellow marks on the inductive sensor puck indicate the gas flow. This provides information on which side is in operation.

Switchovers of type -2P-AC are only suitable for gaseous acetylene (ethyne) of commercial purity. During gas extraction, the maximum extraction quantity prescribed by the gas supplier must not be exceeded, as solvents can otherwise be introduced into the product.

The permissible gas types and pressure ranges are each specified on the label (see "Identification / label").

The equipment versions of the Switchovers without electrical components may be used in an explosion hazard zone as they do not have separate ignition sources (ignition hazard assessment according to DIN EN ISO 80079-36).

Switchovers with electrical components that are suitable for use in an explosion hazard zone are marked on the label according to EU Directive 2014/34/EU.

To be able to use the Switchovers as intended, all persons working with it must comply with the specifications of the relevant user manual.

The area in which hazards can occur when used as intended is the area around the Switchovers. The danger zone changes depending on the system status and use.