Model C22 sample injector - 1/4-28 fitting.  The Model Cheminert® C22 valves are used for sample injection or switching. The valve caps have female threads for direct connection of lines – no couplings are required. Multicolored flangeless fittings are included. 

C22-3186EH 6 port, 2 pos'n ext-sample injector valve w/ micro-electric actuator. 
C22-3188EH 8 port, 2 pos'n ext-sample injector valve w/ micro-electric actuator.
C22-3180EH 10 port, 2 pos'n ext-sample injector valve w/ micro-electric actuator.