Australian Pipeline Valve - Installation, Operation and Maintenance Manual
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LINED BUTTERFLY VALVES - MODEL 2014 & 2016 SERIES
9. The Superseal valve disc can rotate 360° without damaging the valve or elastomer seat. The valve is
designed to open with either clockwise or counter clockwise rotation of the shaft.
10. To prevent damage to the disc and seat during installation, the valve disc should be slightly open but
not extending beyond the valve liner face. Positioning the disc in this ‘almost closed’ position will
reduce seat interference and initial torque build-up during valve installation.
11. In general, it is preferable to install valves with the shaft in a horizontal orientation. In this position,
shaft and disc weights are evenly distributed, minimising seat wear. Additionally, any foreign matter
which may accumulate at the bottom of the disc and shaft is effectively removed each time the valve
is opened.
1) Bend
2) Tee
3) Pipe Reducer
1) Centrifugal pump shaft
horizontal and stem vertical
2) Centrifugal pump shaft
vertical and stem horizontal
3) Axial pump shaft
vertical and stem vertical
FIGURE 3b. BUTTERFLY VALVES LOCATED DOWN-STREAM NEAR A BEND, REDUCER, OR TEE SHOULD BE ORIENTATED AS FOLLOWS:
1) Bend
2) Tee
3) Pipe Reducer
1) Centrifugal pump shaft
horizontal and stem vertical
2) Centrifugal pump shaft
vertical and stem horizontal
3) Axial pump shaft
vertical and stem vertical
FIGURE 3a. BUTTERFLY VALVES LOCATED DOWN-STREAM NEAR THE DISCHARGE OF A PUMP SHOULD BE ORIENTATED AS FOLLOWS:
