IM-P128-23 ST Issue 6
16
5.8 How to fit a double isolation conversion kit
-
A retrot kit is available to convert a standard single isolation STS17.2 to a double
isolation (upstream) version. The double isolation conversion kit includes a spool piece
and additional ball valve parts.
- Remove the bolts and nuts (12 + 13) and remove the upstream end cap (6).
- Attach the spool piece (27) using the new bolts supplied with the conversion kit in combination
with the existing nuts (12 + 13 and 14 + 15) and tighten to the recommended torque (see
Table 3).
- Loosely assemble the existing end cap (6) to the other end of the spool piece (27)
using the new nuts supplied with the conversion kit in combination with the existing
bolts (12 + 13 and 14 + 15), allowing enough gap to slide in the new ball valve and body
assembly (2).
- Slide in the new ball valve and body assembly (2) between the spool piece (27) and
end cap (6) and tighten the bolts and nuts (12 + 13 and 14 + 15) to the recommended
torque (see Table 3).
- Fit the new handle (3) onto the spindle of the new ball valve assembly (2), ensuring it
is in the correct orientation and secure in place by fitting the washer and nut (4 + 5) and
tighten firmly.
12 6 2
13
5
4
2
3
13 12 27
X is a double isolation
conversion kit
Fig. 6 How to fit a double isolation conversion kit to a single isolation valve
14
15
14
15
To Next Page
Loading...