Flowserve BTV 2000 Lined Butterfly Valve - Manual (Page 18)

1. Close the valve. The flats on top of the stem should be
parallel with the valve flange face. NOTE: At this time
adjustments should be made to assure that the valve
body machined flanged surface (5) is parallel with the
disc. To accomplish this, place the valve body machined
flanged surface (5) on a level plate. Then position a
bubble level on the upper side of the shaft square and
adjust the shaft until completely level.
2. Mount the indicator plate (1) to the valve as shown in
Figure 27 with the shakeproof washers placed between
the indicator plate (1) and the valve body mounting pad.
Do not tighten the indicator plate bolts (4) at this time.
3. Place the locking lever (2) on the valve stem as shown in
Figure 27. Tighten the pinch bolt (3) on the handle.
4. Position the indicator plate (1) so that the locking lever
fits in the “closed” position of the indicator plate (1).
Tighten the indicator plate bolts (4).
5. Cycle the valve from closed to open to closed again using
the locking lever handle. Recheck to make sure the disc
is centered on the seat by measuring the distance from
the machined surface on the disc edge to the inner edge
of the liner flanged surface (5) on the body. This should
be done at two points, at the 3 o’clock and 9 o’clock
positions. Both measurements should be equal.
Figure 27
SECTION IX
LOCKING LEVER AND INDICATOR PLATE INSTALLATION
SECTION X
CHANGING LOCKING LEVER QUADRANTS
CAUTION: Do not attempt to change locking lever handle
quadrants while the valve is in service.
1. Close the valve. The flats on top of the stem should be
parallel with the valve flange face. Depressurize system if
valve is installed as valve could open when locking lever
handle is removed.
2. Remove the locking lever (2) and indicator plate (1).
3. Mount the indicator plate (1) 180° from the position
shown in Figure 27. Do not tighten the indicator plate
bolts (4) at this time.
4. Follow Steps 3 and 4 in the Locking Lever and Indicator
Plate Installation instructions.
Machined Flanged
Surface (5)
Body
Indicator Plate (1) Indicator Plate Bolts (4)
Pinch Bolt (3) Handle (2)
Indicator Plate
Bolts (4)
Locking
Lever
18
BTV/BUV 2000