Manufacturer's Information; Transport; Delivery And Performance; Storage - GEM 613 Installation, Operating And Maintenance Instructions

8

Manufacturer's information

8.1

Transport

Only transport the diaphragm valve by
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suitable means. Do not drop. Handle
carefully.
Dispose of packing material according
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to relevant local or national disposal
regulations / environmental protection
laws.
8.2

Delivery and performance

Check that all parts are present and
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check for any damage immediately upon
receipt.
The scope of delivery is apparent from
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the dispatch documents and the design
from the order number.
The performance of the diaphragm valve
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is checked at the factory.
8.3

Storage

Store the diaphragm valve free from dust
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and moisture in its original packaging.
Avoid UV rays and direct sunlight.
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Maximum storage temperature: 40 °C.
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Solvents, chemicals, acids, fuels or
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similar fl uids must not be stored in the
same room as valves and their spare
parts.
8.4

Tools required

The tools required for installation and
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assembly are not included in the scope
of delivery.
Use appropriate, functional and safe
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tools.
613, 618
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Functional description

The GEMÜ 613 (plastic version) and
618 (metal version) motorized valves are
diaphragm valves with a 2/2-way body
(GEMÜ 613 / GEMÜ 618), T-body, tank
bottom valve body or multi-port design (the
latter three body configurations only for
GEMÜ 618). They have a low-maintenance
electric actuator with a reversible
synchronous motor and an integral optical
position indicator. It is operated via a
reduction gear and cam. GEMÜ 618 is
also available without a metal distance
piece for applications with lower operating
temperatures (only diaphragm size 10). The
valve body and the diaphragm are available
in various designs as shown in the data
sheet.
The motorized linear actuator is driven by
means of a synchronous motor. The power
supply voltage must be 24 V AC, 120 V AC
or 230 V AC, 50 / 60 Hz, depending on the
version (voltage tolerance: +10 %). The
change in frequency from 50 to 60 Hz results
in reduction of the stroke time by 20 %.
The motor drives a spur gear. This is
available with two different speeds:
17 sec. or 45 sec.
A cam is integrated in the spur gear that
transfers a stroke of max. 5.5 mm to the
actuator spindle.
The actuator spindle is pressed non-directly
via a spring against the cam. This ensures
opening even when there is a vacuum.
The shape of the cam is such that in the final
stroke area there is a slight increase in the
stroke with the same rotary angle.
The valve end travel positions "OPEN" and
"CLOSED" are achieved by limit switches.
These are actuated by two trigger cams
attached to the optical position indicator.
The micro-switches (change-over contact)
are wired internally as follows:
The break contact (to which the A.C. voltage
is connected) switches to open position
when the trigger cam is actuated and the
power supply is interrupted.
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