Double Valves for Clutch/Brake Control DM2® Series D, Self Monitored

Double Valves for Clutch/Brake Control DM2® Series D, Self Monitored Product Overview 

The DM2® Series D double valve is a patented 3/2 normally closed valve (with an intermediate, lockout position) distinguished by SERPAR® Crossflow passages  with poppet  and  spool valving  on  the main  valve  stems.  This  arrangement  provides the  valve’s  outstanding flow  characteristics  and  an integrated monitoring capability with total memory.  The valve provides dynamic monitoring and dynamic memory. 

Dynamic Monitoring means that all monitoring components change state on every valve cycle.  Should the valve elements cycle asynchronously, the valve will exhaust downstream air and lock-out, prohibiting further operation.   

Dynamic Memory within a monitoring system indicates that when a valve lock-out occurs, the valve will retain the fault information regardless of air or electrical changes.  The DM2® system can only be reset by a defined operation/procedure, and will not self-reset (turning the valve off and on) or reset when inlet air supply is removed and re-applied.  Such automatic resetting would conceal potential hazards from the operator.

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