DeZURIK
3-20” BAW AWWA Butterfly Valves
August 2013
Page 11
D10386
Replacing Packing
Valves without Packing Gland
Removing the valve while the pipeline is under pressure can cause personal injury or
equipment damage. Relieve pipeline pressure before removing the valve.
1.
Relieve the pressure in the pipeline and close the valve.
Accidental operation of power actuator can cause personal injury or equipment
damage. Disconnect and lock out power to actuator before servicing.
2.
If the actuator is powered, disconnect and lock out the pneumatic, hydraulic, or electrical power
to prevent accidental operation of the actuator.
3.
Remove the actuator (and adaptor if included) from the valve
4.
Remove all of the packing rings (A8) from the packing chamber with a hooked tool.
5.
Apply a paint-like coat of an NSF 61 approved lubricant (such as Dow Corning 111 or Phoenix
505) to the inside and outside diameters of the new packing, then install the new packing one
ring at a time.
Note:
Start each chevron ring into the packing chamber at a slight angle and push each ring carefully into position
so that the sealing lips do not bend mover. Push the packing firmly into place. Do not use a sharp or pointed tool.
6.
Replace the actuator adaptor (if included) and the actuator on the valve.
Valves with Packing Gland
Removing the valve while the pipeline is under pressure can cause personal injury or
equipment damage. Relieve pipeline pressure before removing the valve.
1.
Relieve the pressure in the pipeline and close the valve.
Accidental operation of power actuator can cause personal injury or equipment
damage. Disconnect and lock out power to actuator before servicing.
2.
If the actuator is powered, disconnect and lock out the pneumatic, hydraulic, or electrical power
to prevent accidental operation of the actuator.
Replacing Packing
(Continued)
3.
Remove the actuator (and adaptor if included) from the valve.