Azbil Corporation
Model: AMT, HDT - CV3000 Series Control Valves
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11. RECOMMENDED SPARE PARTS
It is most recommendable to replace the following parts when servicing the control 
valve.
•  Valve Body
Be sure to replace the following parts with fresh ones whenever the valve body 
is disassembled:
•  Gland packing
•  Gaskets
• Actuator
Replace the following Parts at every 5 years or thereabout.
•  Diaphragm
•  Bushing
•  Cap
•  Seal washer
•  Dust seal
•  Rod seal
Of the bellows sealed type of control valves, the bellows seal assembly* must be  
replaced periodically. The period of replacement depends on temperature, pressure 
and other conditions of use.  A typical service longevity of the bellows assembly is 
10,000 vertical stroke cycles.
*  The bellows seal assembly has the seal bellows and valve stem (including the 
bellows seat) assembled together.
Please mention the parts name and the product number indicated on the name plate 
when ordering those spare parts.
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Be sure to replace these parts whenever 
the actuator is disassembly.