Installation; Instructions For The Installation Of A Change-Over Valve - Leser 330 Instructions De Service

Installation

Instructions for the installation of a Change-over Valve

6 Installation
EN
6.1 Instructions for the installation of a Change-over Valve
Only trained personnel may install Change-over Valves.
Before installing the Change-over Valve, inspect it for leakage.
Observe the manufacturer's instructions for the fastening elements. Adhere to
the specified tightening torques.
All designated fastening elements must be used so that no excessively high
forces or mechanical stress may arise.
The Change-over Valves must be installed so that the spindle in the valve is in
a horizontal position. The spindle is not designed for vertical installation.
When installing the Change-over Valves, ensure that the drainage openings
are at the lowest point of the assembly.
Establish the connections according to applicable regulations and standards.
Observe the direction of flow indicated on the inlet body and elbows.
Change-over Valves must be installed in such a way that dynamic vibrations in
the system cannot be transmitted to the safety valves. In systems where vibra-
tion cannot be eliminated, install anti-vibration devices.
For correct installation, reaction forces and temperature expansion during
operation must be taken into consideration. Take stress-relief measures such
as:
– support of outlet pipeline,
– support of inlet pipeline,
– support of Change-over Valves around flange circumference at safety valve
– support of safety valves through bores in cast support brackets.
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