Siemens 125-5033 Manuel D’Utilisation

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Fume Hood Controller Owner's Manual 
 
Siemens Building Technologies, Inc. 
The terminal is available in diameters ranging from 4 to 18 inches. The terminal is available in 
a variety of end configurations to match the ductwork construction. It is also available in 
TEFLON® coated 18-gauge steel for highly corrosive environments. 
 
Figure 5.  Laboratory Exhaust Air Terminal.  
Venturi Air Valves 
The Venturi Air Valve is a pre-packaged, easy to install airflow measurement and control 
station. See Figure 6. This assembly combines the orifice plate flow sensor, differential 
pressure transmitter, Electronic actuator and a Venturi Air Valve. 
This arrangement provides fast acting, stable, and precise exhaust airflow control. 
FUM0400R1
 
Figure 6.  Single-Body Venturi Air Valve.