Australian Pipeline Valve - Installation, Operation and Maintenance Manual
11
FLOATING BALL VALVES - SLFSBV02 & SLBV02 SERIES
3. For lever operated: - remove the screw or circlip fastening the lever. Remove the lever. Remove the
retainer/lock washer and the stop plate.
4. Follow disassembly procedure 4.4 below.
5. Remove the ball from the body. Check the ball for any damage. Remove the seat from the body. Check
the seat for any damage.
6. Remove the stem and thrust plate from the body. Remove the thrust plate from the stem. Check the
stem for any damage.
7. Clean and inspect body retainer gasket surfaces. Check for erosion, corrosion, or damage, especially
near point where leakage occurred. If damage is found, those surfaces must be repaired before
continuing.
8. Replace or repair all damaged parts.
Reassembly: -
1. Installation of new seats, packing and seals is recommended, then follow reassembly procedure 4.5
below.
2. For gear operator or power actuator operated: - install the yoke and tighten the screws.
2a. Install key on the stem.
2b. Install gear operator on top flange and tighten the bolts.
3. For lever operated: - install stop plate.
3a. Install retainer/thrust washer.
3b. Install lever.
3c. Install washer and tighten the screw or fit circlip.
This completes the reassembly.
4.4 DISASSEMBLY PROCEDURE
Before removing valve from line ensure valve is in the closed position and line is fully closed off and
drained. Client should observe all industry & regulatory procedures in this process. To disassemble first
remove the operator (4.3.2) then the following steps should be followed with reassembly in reverse
order.
1. Drain & clean valve including contents in cavity.
2. Unscrew (2) RETAINER from (1) BODY.
3. Take off (2) RETAINER from (1) BODY and remove (12) GASKET.
4. Carefully remove (3) BALL. Avoid scratching BALL surface.
5. Remove (5) SEATS from BODY.
6. Remove (14) SNAP RING (or retainer bolt), (13) STOPPER, (8) GLAND BOLT and (7) GLAND FLANGE (or GLAND
NUT) on larger sizes YOKE must also be removed.
7. Remove (4) STEM by pulling from inside BODY cavity.
8. Remove (9) THRUST WASHER.
9. Remove (11) GLAND PACKING and (10) STEM SEAL where fitted.
