SILVER LINE
BALL V-SECTOR VALVE
INSTALLATION AND MAINTENANCE
MANUAL
465 series
20-04-2011
Page 1 of 4
BALL-SECTOR VALVE
465, 46501 SERIES
INSTRUCTIONS FOR INSTALLATION, USE AND
MAINTENANCE
1. Before installation.
Read these instructions carefully before starting the valve installation and start-up work.
During the receiving inspection, check that the valve and its accessories are free from any transportation-
induced damage.
During storage, the valve must be protected from dirt, rain, prolonged sunshine or sub-zero temperatures.
The protecting cap should be removed from the valve ends just before installation
2. Installation.
In outdoor installation, take care to drain the valve, as there is danger of freezing; especially the
space between the ball and valve body.
The valve should not be fitted at the lowest point of the pipework or in over low-level locations.
The pipework should be carefully cleaned before the valve is fitted. Remove any foreign matter that may
have got into the valve during transportation or storing.
Test the proper operation by opening and shutting the valve.
During installation, the ball sector must be close.
When installing the valve in the pipeline, the arrow on the body denotes the correct direction of flow.
After completion of flange welding, make sure that valve will not be under excess load, that flanges are
parallel and coaxial to each other.
After installation, flush out the pipework through.
3. Valve operation.
The ball sector valve is specially design for the controlling pulp and liquid flows.
4. Maintenance.
In normal conditions, these valves do not require maintenance.
Never remove the gland and sub-shaft cover while the valve is pressurised.
