LUBRICATED PLUG VALVES - SAPM/SAPL
Australian Pipeline Valve - Installation, Operation and Maintenance Manual
8
1 . 0 S T O R A G E
1.1 TEMPORARY STORAGE
If valves are to be stored before installation, the following should be observed:
a) Keep the valves wrapped and protected as shipped from the manufacturer.
b) Do not remove the protective ends covering until the valve is ready for installation. This will reduce the
possibility of foreign material damaging the internal valve components.
c) Valves stored outdoors should be positioned such that water does not accumulate in the valve body.
1.2 LONG TERM STORAGE
If valves are to be stored more than one year, they should be prepared in the following manner:
a) Remove the packing and apply a preservative to the packing chamber.
b) Do not remove the protective end covering.
c) Do not store the valves outdoors.
1.3 PREPARATION
a) Remove the valve end protection.
b) Prior to shipment from the manufacturer, a preservative may have been applied to the inner body of
the valve. This preservative may have been removed with a solvent.
c) The inside of the valve should be inspected and blown out with compressed air. Adjacent piping must
be clean and free from debris to prevent damage to the valve.
d) To prevent valve distortion, inefficient operation or early maintenance problems, support piping on
each side of the valve.
e) Make sure the valve is positioned such that there is sufficient space so that the hand wheel is easily
and safely reached and there is enough clearance for the stem when the valve is open.
f) Install the valve according to the flow indicator on the valve body where applicable.
2 . 0 O P E R A T I O N
The design of APV Standard Type plug valves is provide bubble tight shut off.
Plug valves have a quarter turn operation (i.e. They have a 90 degree rotation of the plug in operating
from fully open to fully closed) and close in the clockwise direction when viewed from above the valve
stem.
It is possible to recognise when the valve is open or closed by the position of the grooves or raised
pips in the top of the stem, these being in-line with the plug port. Multiport valve can have more than a
quarter turn operation - these are also recognised by the grooves or raised pips in the top of the stem,
being in-line with the plug port.
