Air quality monitoring

SC configuration – low pressure

SC valves select one of 4 to 16 streams, with the selected stream flowing from the valve outlet to a sample valve, pressure sensor, detector, column, etc., and the non-selected streams flowing to a common outlet.

This configuration is ideal for air quality monitoring; since the non-selected streams are continuously pulled through the valve, the most current sample will be provided as each point is selected for analysis.

Move your mouse cursor over a Step to "switch" the valves, or go to a non-animated version.

Step 1: The sample loop on the 6 port valve is loaded from Stream 1.

Step 2: The 6 port valve is switched, injecting the sample.

Step 3: The SC valve is advanced to Stream 2 and the cycle is repeated.

Both valves can be automated with air or electric actuators for unattended operation.

Further reference

More applications with multiposition valves
Valco multiposition valves – SC configuration
Actuators
   Microelectric
   Air
   Standard electric