8
5.
INSTALLATION AND COMMISSIONING
Before starting the installation process, check that all the parts needed for the valve assembly are there, and that the materials,
connection type and nominal pressure are suitable for the installation.
For solvent or welded connections, ensure also that the parts to be connected are of the same material and that the correct solvent
or welding tools are used.
To install the valve, follow best installation practice recommendations provided on the Cepex website, paying specific attention to
thermal expansion and pipe alignment.
When filling the pipes with liquid, check that all the air has been purged from the system and that the initial pressure does not exceed
the nominal pressure of the valve, or of the system element with the lowest nominal pressure rating.
Install the valve pointing in the direction of flow marked on the body of the valve (downstream).
Install the valve once the sockets are solvent-bonded and dry, to avoid problems with the adhesive (entry of the latter into the valve).
The valve is supplied assembled from the factory and the following steps should be followed for its installation:
1. Check that the diameter of the pipe corresponds to the inside of the end connector (if it is a solvent socket).
2. Adjust the valve to the installation leaving the union nut (3) Fig. 6 on the pipe before gluing the end connector (5) Fig. 7.
3. Leave an exact distance between end connectors (see Fig. 8), so that the body of the valve can be easily introduced, preventing it
from being strained by both ends of the piping.
4. Solvent sockets (PVC-U / PVC-C / ABS) are made by cleaning the areas to be joined with a suitable solvent and then adding adhesi-
ve. It not recommended that pressure be applied until 24 hours after gluing.
The body of the end connectors should be separated during the solvent operation, to avoid that the adhesive damages the valve’s
internal parts.
5. PTFE tape is placed on the male threads of the threaded unions: “it is very important not to use an excessive amount as when it is
put together it could cause the breakage of the female housing”.
6. The welded unions (PE / PP-H / PVDF) are made taking into account the instructions of the welding tool used.
This range of valves allows the valve to be fixed to a base using threaded inserts at the bottom.
When using the inserts, take note of the dimensions of the screws
3
5
Fig. 6
Fig. 7
Fig. 8
ENGLISH
[IND] ELECTRIC BALL VALVE
Summary of Contents for PPH
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