Flowserve CB 1 - Manual (Page 13)

13
Installation
Note
CB 1..., CB 2...
1. Observe installation instructions on page 14.
2. Clean seating surfaces.
3. Installation in horizontal lines: Insert bolts through lower flange holes, fasten nuts. Insert off-the-
shelf seals.
4. Install and align swing flap non-return valve CB.... Make sure that eyebolt A is on top. Insert bolts
and tighten them evenly.
5. Installation in vertical lines: Insert off-the-shelf seal (bottom).
6. Install and align swing flap non-return valve CB... Insert off-the-shelf seal (top). Insert bolts and
tighten them evenly.
When the volume flow reaches the instable range (see Pressure Drop Chart) during
operation clatter may occur which gives rise to wear on the oscillating flap. Fig. 3, Fig. 4
Do not install swing flap non-return valves in vertical downward flow lines.