11. BRIEF DESCRIPTION
The operation of the shut-off valve works manual with the handwheel (90°
- turn and click). The valve is open, when you can see the green sign. It
is closed when you see the red sign (4-Port Version). The 2-port valve is
EN
open when the hand knob points in the direction of flow. The 2-port valve
is closed when the hand knob is vertical to the flow direction.
12. INSTALLATION & INITIAL START-UP
STAFF
Installation and initial start-up of the system may only be performed by
qualified staff.
12.1. PREPARATION
UNPACKING
•
The system components should be removed from their packaging care-
fully and prudently.
•
Additional protective packaging should also be removed.
•
Check all components of damages from transport
DEPRESSURIZE
•
Depressurize components and purge with inert gas if necessary
•
Cut tubing with special tool; avoid contaminations (dirt, cuttings, etc.)
•
Check perfect condition of components and purity of connections
12.2. INSTALLATION
In most cases the shut-off valve is mounted with compression fittings. First
remove the plastic caps from inlet and outlet. Insert the piping completely
into the compression fitting. Than screw the nut hand tight. After that
screw with a jaw spanner 1 ¼ turns tight (first installation 1 1/4 turns for
tubes bigger than 1/8 inch and 3/4 turns for 1/8 inch and smaller tubes,
retightening 1/4 for all tubes). Connect the relief tubing the same way.
12.3. REQUIRED QUALIFICATIONS FOR INITIAL START-UP
AND CYLINDER CHANGING
•
The test protocols from the piping according to tightness and if neces-
sary, moisture and particles are available
•
In process gas tubing is only standard gas (see point 2)
•
The start-up is only realized by qualified personal
•
Wear safety clothes according to regulations
•
Use spark-free tools and provide before installation
•
Before first start-up check type label, if the component is suitable for the
provided purpose (gas, pressure, material, etc.)
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