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5 Correct use
Ball valves are used to isolate media flows.
Only clean, liquid or gaseous media must be used, and the
body and seal materials used must be resistant to and suit-
able for this. Contaminated media and / or applications out-
side of the pressure and temperature data may lead to dam-
age to the body and, in particular, to the seals on the ball
valve.
The "Technical data" chapter describes the permissible pres-
sure / temperature range for these ball valves.
Danger of explosion!
▶ Risk of severe injury or death.
Only versions that have been approved
●
according to their technical data may
be used in potentially explosive envir-
onments.
Improper use of the product!
▶ Risk of severe injury or death
▶ Manufacturer liability and guarantee will be void
Only use the product in accordance with the operating
●
conditions specified in the contract documentation and in
this document.
The product is suitable for installation in piping and for con-
trolling a media flow. The operating conditions according to
the technical data apply to the media to be controlled.
The product is controlled via a motorized actuator.
The product is not intended for use in potentially explosive
areas.
The product must not be exposed to pressure fluctuations. If
the product is to be used with pressure fluctuations, please
contact GEMÜ.
Due to the design, in the open and closed position, a low
volume of medium may be trapped within the ball or between
the ball and the body.
Expansion of the medium due to temperature differences,
change in state or a chemical response may lead to a high
pressure build-up. In order to prevent unacceptable pressure
increases, a special version with pressure-relief hole in the
ball is available on request for this case.
Build-up of lint!
▶ For soft-seated ball valves, due to the relative rotations of
the stainless steel ball valve to the seat seal, slight wear
of the PTFE seals must always be anticipated. Despite
this, the safety of the ball valve is not affected by any po-
tential build-up of lint and the seal materials are compli-
ant in accordance with FDA directives.
www.gemu-group.com
DANGER
WARNING
NOTICE
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5 Correct use
GEMÜ B52
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