Analysis of reactions or process streams with differing upstream pressures

SF configuration – low pressure

SF 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 each non-selected stream flowing to an individual dedicated outlet.

This is the ideal solution when reactions or process streams with differing upstream pressures must be analyzed, and can also provide independent containment of toxic or noxious streams. An SF valve together with a 6 port sampling valve and pneumatic or electric actuators comprise a complete sampling system for the automated analysis of up to 16 sample points.

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 4.

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

Step 3: The SF valve is advanced to Stream 1 and the cycle is repeated.

Further reference

More applications with multiposition valves
Valco multiposition valves – SF configuration
Cheminert multiposition valves – Model C5