Change-over switching stations
Change-over switching stations are used with at least two cylinders (or cylinder racks) to guarantee a continuous gas supply, also during a cylinder change. Depending on the desired level of operating convenience and specific user requirements, change-over switching stations can be either manual or automatic.
Manual change-over switching stations
Manual change-over switching stations permit a continuous operation, the switching from one side to the other being carried out manually via the master manifold valves. The cylinder side in operation is easily identified from the high pressure indication on the pressure regulator.
The manual change-over switching stations are suitable for all non aggressive, technical gases. They are available for inlet pressure 200 or 300 bar and in two versions according the requred flow range.
Automatic change-over switching stations
Automatic change-over switching stations permit continuous and uninterrupted operation and greatly increase operational convenience and safety to a huge extent.
Automatic change-over stations based on differential pressure
For connection of two cylinder racks or two to four individual cylinders.
With integrated purging valves and as option with external alarm. Change-over pressure up to 10 bar, 30 bar or 50 bar
Automatic change-over switching station based on differential pressure for acetylene according EN ISO 14114
Automatic change-over switching stations with contact gauges
Automatic change-over station with flow rate up to 30 Nm3/h with ZD 51 pressure regulators and with one or two contact gauges and including electronic control
Automatic change-over station for high flowrate with ZD 79 pressure regulators and with one or two contact gauges and including electronic control
Automatic change-over station for acetylene according EN ISO 14114