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The Ventus shut-off valve system facilitates the targeted exclusion of individual wards or functional areas from the central gas supply system. The integrated electronics continuously monitor the pressure in the piping and visually and acoustically trigger the clinical emergency alarm.

Additionally, the Ventus system has an intake point that is specific for the type of gas and is protected against unauthorized opening by means of an electronically monitored door with emergency access. Installation is suitable for flush mounting, assembly in dry walls or surface mounting. The back of the box is made of zinc-coated sheet steel.

Spy version
Door made of one-way plate glass, opens upwards via a lifting mechanism. The internal illumination turns on during an alarm making it possible to see the manometer.


Björn Rehr
+49 (0)40 / 73 93 57 - 0

    Dimensions of flush mount frame 1-3 valves: W 370 x H 450 x D 72 mm
    Dimensions of flush mount frame 4-6 valves: W 655 x H 450 x D 72 mm
    Dimensions front 1-3 valves: W 406 x H 485 mm
    Dimensions front 4-6 valves: W 690 x H 485 mm
    Connection: 15 mm CU connection pipe
    Nominal pressure of compressed gases: max. 1000 kPa
    Nominal pressure vacuum: max. -100 kPa
    Manometer: 50 mm aD; Scale: 0...16 bar /Vacuum 0...-1 bar
    Pressure transmitter: 4 - 20 mA / 24 V DC
    Primary voltage: 230 V 50 Hz AC (integrated mains power supply)
    Secondary voltage: 12 V AC
    Voltage supply: 12 - 24V AC / 50Hz
    Power consumption: 6 W
    Protection rating: IP 41
    Acoustic signal generator: 60 dB at 1m distance
    Suppression: 12 minutes
    Inputs: max. 6 media monitored
    Outputs: max. 6 items potential-free
    Sensors: Vacuum /compressed gas: -100 to +600 kPa
    Compressed gas: 0 to 1600 kPa
    Supply voltage: 10-30 V DC Signal: 4-20 mA
    Display: Operation LED green, fault LED red (2x)

    VENTUS SPY - Front components

    Ventus spy, 1 valve, only front component 900.812
    Ventus spy, 2 valve, only front component 900.813
    Ventus spy, 3 valve, only front component 900.814
    Ventus spy, 4 valve, only front component 900.815
    Ventus spy, 5 valve, only front component 900.816
    Ventus spy, 6 valve, only front component 900.817


    VENTUS BASIC - Back components

    Ventus 1 valve, only back component, for flush mounting 900.800
    Ventus 2 valve, only back component, for flush mounting 900.801
    Ventus 3 valve, only back component, for flush mounting 900.802
    Ventus 4 valve, only back component, for flush mounting 900.803
    Ventus 5 valve, only back component, for flush mounting 900.804
    Ventus 6 valve, only back component, for flush mounting 900.805

    When ordering, always specify the desired types of gas! e.g., 3 valve, O2 / AIR / VAC

    Ventus surface frame 1 to 3 valves 900.831
    Ventus surface frame 4 to 6 valves 900.832


    • High level of safety due to redundant microprocessors (if one processor fails,the second processor will assume all functions)
    • Clinical operational alarm: Visual (red and green LEDs) and an acoustic signal in the presence of rising or falling pressure (according to DIN EN: ISO 7396-1)
    • Reset key for alarm suppression or confirmation (time-dependent alarm repetition every 12 min); test key for a functional test
    • The board contains an integrated connection to the central instrumentation and control systems, i.e. possibility of transmitting the alarm via potential-free relay contacts
    • Possibility of retrofitting additional electronics or connection to a network system
    • RS485 interface for maintenance / service on the electronics
    • Display panel for the media designation


    For each type of gas, the shut-off unit consists of the following components:

    • Zone shut-off valve and manometer
    • Physical separation of the pipe system
    • Emergency intake option via NIST coupling
    • Pressure sensor