This spanner wrench is made for both normally open and normally closed valves in elemental analyzers.
Of the Normally Open and Normally Closed Valve. To keep your instrument operating efficiently, you should clean and rebuild valves every year. Certain other parts, too, will require periodic replacement. This part is identical to the part that was originally supplied with your analyzer and can be replaced without the assistance of a service representative. Instructions for replacing this part is included in your operator''s manual.