DeZURIK
Willamette VMC-2200 Cone Valves
February 2015
Page 7
D12002
Shaft Packing Adjustment
Removal of the valve from the line for shaft packing adjustment is not required as long as the shaft is
accessible.
1.
If the actuator is powered, disconnect and lock out the pneumatic, hydraulic, or electrical power
to prevent accidental operation of the actuator.
Accidental operation of power actuator can cause personal injury or equipment
damage. Disconnect and lock out power to actuator before servicing.
2.
Tighten packing gland screws evenly only until leaking stops, see Figure 4.
Caution!
Do not exceed 22 ft lbs of torque on the screws. Overtightening screws can damage
the shaft packing and cause excessive shaft torque.
Shaft Packing Replacement
Removal of the valve from the line for shaft packing replacement is not required as long as the shaft is
accessible.
Servicing the valve while the pipeline is under pressure can cause personal injury or
equipment damage. Relieve pipeline pressure before servicing the valve.
1.
Relieve the pressure in the pipeline and close the valve.
2.
If the actuator is powered, disconnect and lock out the pneumatic, hydraulic, or electrical power
to prevent accidental operation of the actuator.
Accidental operation of power actuator can cause personal injury or equipment
damage. Disconnect and lock out power to actuator before servicing.
3.
Remove the hex head cap screws from the packing gland studs and move the gland upward.
Remove the packing with a flexible packing hook or similar tool. Clean the packing area, being
careful not to damage it.
4.
Obtain the new packing. The type of packing used in the Willamette VMC-2200 cone valve is v-
packing. V-packing consists of a male and female adapter ring and several v-rings, see Figure
4. Make sure it is clean, and has not picked up any dirt in handling before installing it. Lubricate
I.D. of each packing ring.
5.
Cut the rings to fit around the shaft. Joints of successive rings should be staggered at least 90
degrees apart when being installed. First, install male adapter. Secondly, install the v-rings one
at a time with the opening of the “v” facing down. After all v-rings are installed, install the female
adapter. Each ring should be firmly seated with a tamping tool. Do not depend on the packing
gland entirely to seat the set of rings properly. This practice will jam the last rings installed but
leave the first ones loose in the box.