Manufacturer's Information; Transport; Delivery And Performance; Storage - GEM 658 Installation, Operating And Maintenance Instructions

Order example
Type
Nominal size
Body configuration (code)
Connection (code)
Valve body material (code)
Diaphragm material (code)
Control function (code)
Version (code)
Surface finish (code)
8

Manufacturer's information

8.1

Transport

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

Delivery and performance

Check that all parts are present and
G
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 valve's delivery condition:
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Control function:
1 Normally closed (NC)
The performance of the diaphragm valve
G
is checked at the factory.
8.3

Storage

Store the diaphragm valve free from dust
G
and moisture in its original packaging.
Avoid UV rays and direct sunlight.
G
Maximum storage temperature: 40 °C.
G
Solvents, chemicals, acids, fuels or
G
similar fl uids must not be stored in the
same room as valves and their spare
parts.
688 25 D
688
25
D
8.4
The tools required for installation and
G
assembly are not included in the scope
of delivery.
Use appropriate, functional and safe
G
tools.
9
GEMÜ 658 / 688 is a metal diaphragm valve
with a 2/2-way, T or tank bottom valve body
or in multi-port design. The valve has a two
stage actuator which can be controlled by
inert gases. The actuator has a stainless
steel housing and is controlled by two
pistons working independently of each
other. Function: When control pressure
(connector V) is applied, the lower actuator
piston strokes 100 %. The stroke of the
upper part (connector R) of the actuator,
however, can be steplessly limited from 0 %
to 100 % by means of the stroke limiter 17
Condition:
and secured by the locking nut 16. When a
closed
stroke limiter is used, the actuator piston 13
moves against the stroke limiter 17 and flow
restriction is possible (connector R). If the
lower part of the actuator (connector V) is
under control pressure, the valve fully opens,
pushing the spindle 27 upwards through
the upper actuator piston. The valve body
and the diaphragm are available in various
designs as shown in the data sheet. The
valve has CIP / SIP cleaning and sterilizing
capabilities.
Diverse accessories are available, such
as pilot valves, limit switches and field bus
connections.
27 / 44
60 40 13
60
40
13

Tools required

Functional description

1 1V1 1503
1
1V1
1503
658, 688