Maintenance
Bio-Pure Installation, Operation, and Maintenance Manual
12
Maintenance
Precautions
WARNING:
• All procedures must be performed by qualified personnel.
• When the process fluid is hazardous, thermal (hot or cold), or corrosive, take extra
precautions. Employ the appropriate safety devices and be prepared to control a process
media leak.
• O-ring failure on the upper cover of a fail open or double acting actuator can pressurize a
switch package, if present. This may result in catastrophic failure of the switch package,
causing the switch package cover to be released at high velocity. O-ring failure can be
caused by:
• Damage to the o-ring
• O-ring material degrading
• O-ring wear over time
• Always wear protective clothing and equipment to safeguard the eyes, face, hands, skin,
and lungs from the fluid in the line.
• Do not disassemble the actuator in the field. The actuator contains energized springs
which can cause injury. The product is designed to be recycled in its entirety.
CAUTION:
• Disconnect electrical, pneumatic, and hydraulic power before servicing actuator or
automation components.
Inspection
The actuator cannot be disassembled and reassembled.
Inspection area
What to look for
Action if problem is found
External valve parts
Excessive wear or corrosion
• Replace the affected parts
• Contact ITT to obtain re-
placement parts or for specif-
ic instructions
Non sealed bonnet
Fluid weeping from the plug
Replace the valve diaphragm
Actuator's bonnet weep hole and
air ports
Air pressure
Contact ITT for specific instruc-
tions
Topworks
Spindle binding, excessive noise,
or dried lubricant
• For manual topworks, lubri-
cate the valve spindle
• For actuated topworks, con-
tact ITT for specific instruc-
tions
O-ring for COP manual topworks
Signs of wear or nicks
Replace the o-ring
Diaphragm and valve body
Leakage between the diaphragm
and valve body
Tighten the bonnet fasteners
For more information, see:
•
•
Disassemble the valve
1. Remove all line pressure.
Designed and Manufactured by ITT
