7
APV_SW4_UK-4_082017.indd
UK
Single seat and change-over valve
DELTA SW4
Instruction manual: UK - rev.4
APV
6. Cleaning
6.1. Cleaning recommendation
- Flow passages
The passages of the valve are cleaned by the cleaning liquid during
cleaning of the connected pipelines.
Depending on the degree and substances of soiling, cleaning
liquids, times and processes must be scheduled for the individual
application.
The compatibility of the individually selected cleaning processes
and liquids with the respective seal material must be veried.
7. Installation
7.1. General terms
- Installation must be undertaken in such a way that liquids can drain
off and should preferably be carried out in vertical position.
- Single seat valve:
The valve housing can be welded direct into the pipeline system
(completely dismantable valve insert).
- Change-over valve:
The upper housing is connected with the pipeline via a ange or
clamp connection in detachable manner (see g. 7.).
Attention! Observe Welding Instructions 7.3.
7.2. Connections
Besides the basic version with weld ends, the valve housing are
also available with threaded, flange and clamp connection.
fig. 7.
change-over valve
separate connection
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