HIGH PERFORMANCE BUTTERFLY VALVES - MODEL SLHBF & SLHBFFS
Australian Pipeline Valve - Installation, Operation and Maintenance Manual
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The packing cannot be replaced when the valve is in-line!
6.2 SEAT RING/SEAT RETAINER
Before installation in the line, check the condition of the seat ring and the bolting tightness of the seat
retainer.
DIAGRAM 4
Upper Bush
Disc
Lock Pin
Stem
Lower Bush
Gasket
End Cover
Bolt
Gland Bolt/Nut
Gland Flange
Packing Gland
Packing
Body
Seat
Seat Retainer
Retainer Bolt
Indicative explosion only, design will vary depending on size, class, seating type, trim, end connections, etc. Refer to as-built drawing.
All repair work (disassembly and replacement etc.) of our valve should be performed by well-trained
maintenance personnel. Only an APV approved service centre should attempt major repairs. Our repair
centre can arrange reconditioning if required.
6.3 REMOVING VALVE FROM THE LINE
To repair a leaking valve, the valve must be removed from the pipeline and the parts dismantled as
below by experienced, qualified personnel:
- Shut down the line and ensure that there is no pressure in the pipeline.
- Drain all product from the pipe.
- Completely close the disc of the valve.
- Remove the valve from the pipe.
