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APV_BLV1_GB-0_012020.indd
Ball Valve
APV DELTA BLV1
Instruction Manual: GB - rev. 0
APV
GB
12. Service Instructions BLV1 - H
Ball valve with manual operation without feedback
The position numbers refer to the illustration below.
12.1. Removal from the line system
Caution!
Liquid residue can be in the ball valve.
Caution!
1.
Shut off connecting lines, depressurize line, and discharge it if
possible.
2.
Open the ball valve with the handle (11).
3.
Release all body screws (6). Remove the upper body screw which
is not passing through the body.
4.
Swing out the body (4), move the ball (5) into closed position and
remove it together with the seats.
12.2. Replacement of ball and ball seats
1.
Dismantle the ball (5) together with the ball seats (3). Check ball for
damage, and replace it if necessary.
Caution!
After dismantling, the ball is lying freely in the body. - In closed
valve position, the ball can fall out of the body. Proceed carefully in
order to prevent damage of the ball.
2.
Insert the ball with the new ball seats. Replace the body gasket (2),
and assemble the ball valve.
3.
Tighten all body screws.
Pos. 1
flange end
Pos. 2*
body gasket
Pos. 3*
ball seat
Pos. 4
body
Pos. 5
ball
Pos. 6
body screw
Pos. 8
gland
Pos. 9
washer
Pos. 10
nut
Pos. 11
handle
Pos. 13
stem
Pos. 14* stem seal
Pos. 15* stem packing
Pos. 16
nut
Pos. 17
washer
Pos. *
parts of seal kit
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