Symbols Used; Definition Of Terms; Intended Area Of Use - Gemü 741 Montageanleitung

2.3

Symbols used

Danger - hot surfaces!
Danger - corrosive materials!
Hand: indicates general information
and recommendations.
Bullet point: indicates the tasks to
G
be performed.
Arrow: indicates the response(s) to
®
tasks.
Enumeration sign

3

Definition of terms

Working medium
The medium that flows
through the ball valve.
Control medium
The medium whose increasing or
decreasing pressure causes the ball
valve to be actuated and operated.
Control function
The possible actuation
functions of the ball valve.
741
4

Intended area of use

The GEMÜ 741 ball valve is designed for

installation in piping systems. It controls
a flowing medium by being closed or
opened by a control medium.
The ball valve may only be used

providing the product technical
criteria are complied with (see
chapter 5 "Technical data").
Do not paint the bolts of the ball valve!

Use the ball valve only for
the intended purpose!
Otherwise the manufacturer liability
®
and guarantee will be void.
Use the ball valve only in accordance
G
with the operating conditions specified
in the contract documentation and
in the installation, operating and
maintenance instructions.
The ball valve may only be used in
G
potentially explosive zones confirmed
in the declaration of conformity (ATEX).
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WARNING