DeZURIK
VPB V-Port Ball Valves
D10324
Page 12
February 2016
Valve Reassembly
Clean and inspect all parts, and replace worn parts before reassembly. Refer to Figures 1 and 2 for
component identification. The valve requires lubrication only when it is being assembled. Refer to the
Actuator Instructions for lubrication requirements for the actuator.
1. Place the ball (A2) in the body (A1), with the splined hole toward the top of the valve.
2. Apply a light coat of media compatible grease to the inside and outside diameters, and to the
ends of the lower solid bearing (A19).
a. If bearing has a fabric liner, the bearing does not require lubrication.
b. If bearing seals are required, place seal (A33) in the inner groove, and seal (A34) in the
outer groove. Apply a light coat of media-compatible grease to the O-rings.
c. If bearing has counterbore, counterbore must face the plug.
3. Place the bearing into the lower body bore.
4. Insert the lower shaft (A18) through the shaft hole in the bottom of the body (A1), and into the
hole in the ball (A2).
5. For valves that require a thrust bearing, apply a light coat of media-compatible grease to the flat
sides of the thrust bearing (A20). If thrust bearing has a fabric side, the bearing does not require
lubrication.
6. Place the thrust bearing (A20) against the bottom of the lower shaft (A18). If thrust bearing has
a fabric side, fabric side must face the shaft.
7. Apply a light coat of anti-seize compound to the threads of the screws (A23).
8. Place the gasket (A21) and the cover (A22) on the bottom of the body (A1). Fasten the cover
with screws (A23).
•
For valve sizes 1 - 2” (25–50mm), tighten the 1/4" screws to 10 ±2 ft lbs (13 ±2 Nm).
•
For valve sizes 2-1/2 - 6” (60–50 mm), tighten the 3/8" screws to 16 ±2 ft lbs (22 ±2 Nm).
•
For valve sizes 8 – 14” (200-350mm), tighten the 1/2" screws to 40 ±3 ft lbs (54 ±4 Nm).
•
For valve sizes 16 – 20” (400-500mm), tighten the 3/4" screws to 100 ±5 ft lbs (135 ±7 Nm).
9. Apply a light coat of media-compatible grease to the inside and outside diameters of the upper
solid bearing (A12).
•
If bearing has a fabric liner, the bearing does not need lubrication.
•
If bearing seals are required, place seal (A33) in the inner groove, and seal (A34) in the
outer groove. Apply a light coat of media-compatible grease to the O-rings.
•
If bearing has a counterbore, counterbore must face the plug.
10. Place the upper bearing into the upper body bearing bore.
11. Apply a light coat of media-compatible grease to the valve shaft (A6) splines.
12. Insert the upper shaft (A6) through the bearing located in the upper body bearing bore, and into
the splined hole in the plug (A2), making sure the threaded hole in the upper plug hub is in line
with the recessed hole located in the shaft spline area. Push the upper shaft downward into the
valve body until all axial movement is taken up.
