Emerson Fisher V270 Instruction Manual page 10

V270 Valve
September 2018
o‐ring seal (key 14), drive shaft bushing (key 8), and thrust washer (key 9). The two straight pins (key 7) may stay
attached to the packing box.
c. If necessary, use a punch and drive each straight pin towards the valve side of the packing box to remove.
7. If it is desired to separate the packing box assembly parts, loosen or remove the packing components and slide the
shaft down and out the valve side of the packing box. Inspect the drive shaft bushing (key 8) and the thrust washer
(key 9). If necessary, replace worn components.
8. Remove the heavy hex nuts (key 21) from the studs, if applicable, remove base brackets (key 25), and lift the upper
tailpiece from the body. If studs (key 19 and 20) are removed from the valve body, mark installed locations of long
studs (key 20) in valve body.
CAUTION
While lifting the tailpiece (key 2) from the valve body, check to see if the seal (key 5) is lifting with the tailpiece. If so, use
caution in case the seal falls out and protect the ball's spherical surface. An additional strap can be employed to ensure the
seal stays in place.
9. Turn the tailpiece assembly over so the seal is facing up, and place it on a clean soft surface to protect the flange
serrated surface. Note the tailpiece o-ring (key 13).
10. Lift the seal out of the tailpiece. Note the seal o-ring and back up ring (keys 15 and 16) and the multitude of springs
(key 18). Ensure all springs and the bearing plate dowel pins (key 22) are accounted for. Clean and protect all sealing
surfaces.
WARNING
When lifting the ball, ensure the bearing plates (key 11) are secure on the ball trunnions to prevent parts from falling which
may cause personal injury or property damage.
Note
Refer to figure 6 and note the NPS6 CL150 construction is different than the balance of the V270 product line in that it lacks
bearing plates and the ball design does not have male trunnions. Specific to the NPS6 CL150, ball removal also requires removal of
the follower trunnion (key 42) and fasteners (key 43).
11. Turn the ball (key 3) to the closed position. Use an approved lifting sling through the ball bore to lift the ball out of
the valve body. Lift the ball and set it on a clean soft surface.
12. Remove the two bearing plates (key 11) and thrust washers (key 17) from the ball. Inspect the lined bushing (key
12) in each bearing plate and the thrust washers. If necessary, replace worn components.
13. Evenly loosen the heavy hex nuts (key 21) from the studs, if applicable, remove base brackets (key 25), and lift the
body (key 1) from the lower tailpiece (key 2).
14. Lift the seal out of the lower tailpiece. Note the seal o-ring and back up ring (keys 15 and 16) and the multitude of
springs (key 18). Ensure all springs and the lower bearing plate dowel pins (key 22) are accounted for. Clean and
protect all sealing surfaces.
10
Instruction Manual
D104297X012