Chell Instruments
 

CMV Needle Valves

Chell Mechanism Precision Needle Valves

  • Ultra-low flow ranges from 0-20sccm air FS @ 1bar
  • Stainless Steel construction with Perlast seals
  • Helium Mass Spec. Leak Test to 10-9mblsec-1
  • Smooth opening, 6 turns to 2sccm (for Ultra-Fine Model)
  • 1/16”, 1/8”, 1/4”, 6mm or KF10 fittings
  • Optional Turns Counting Dial
  • Non-rising stem


Chell has created a range of precision needle valves capable of repeatably delivering precise flows. The valves range from 0-20sccm to 0-3slpm . All feature stainless steel construction with Perlast® seals (other seal materials are available, pleasecontact us for more information).

The graph on the left shows the opening characteristics of the No. 1 needle valve (0-20sccm) and below is that of the No. 2 needle (0-1000sccm).

A Dimensioned drawing of the valve is available in pdf form click here to down-load it.


 

 
Order Codes
 

For full specification please download the PDF data sheet (395kb).


Chell Instruments