GEM 658, Installation, Operating And Maintenance Instructions, Page: 22 / 44

658, 688
Contents
1 General information 22
2 General safety information 22
2.1 Information for service and
operating personnel 23
2.2 Warning notes 23
2.3 Symbols used 24
3 Definition of terms 24
4 Intended area of use 24
5 Condition as supplied
to customer 24
6 Technical data 24
7 Order data 26
8 Manufacturer’s information 27
8.1 Transport 27
8.2 Delivery and performance 27
8.3 Storage 27
8.4 Tools required 27
9 Functional description 27
10 Construction 28
11 Installation and operation 29
11.1 Installing the diaphragm valve 29
11.2 Control function 30
11.3 Connecting the control medium 31
11.4 Mounting of proximity switches
M8x1 (only for GEMÜ 688) 31
12 Assembly / disassembly
of spare parts 32
12.1 Valve disassembly
(removing actuator from body) 32
12.2 Removing the diaphragm 32
12.3 Mounting the diaphragm 33
12.3.1 General information 33
12.3.2 Mounting a concave diaphragm 34
12.3.3 Mounting a convex diaphragm 34
12.4 Actuator mounting
on the valve body 35
13 Commissioning 35
14 Inspection and servicing 36
15 Disassembly 36
16 Disposal 36
17 Returns 36
18 Information 36
19 Troubleshooting /
Fault clearance 37
20 Sectional drawings
and spare parts 38
21 Declaration of Incorporation 40
22 EC declaration of conformity 41
1 General information
Prerequisites to ensure that the GEMÜ valve
functions correctly:
Correct transport and storage
Installation and commissioning by trained
personnel
Operation according to these installation,
operating and maintenance instructions
Recommended maintenance
Correct installation, operation, servicing and
repair work ensure faultless diaphragm valve
operation.
The descriptions and instructions
apply to the standard versions.
For special versions not described
in these installation, operating
and maintenance instructions the
basic information contained herein
applies in combination with any
additional special documentation.
2 General safety information
The safety information does not take into
account:
Unexpected incidents and events, which
may occur during installation, operation
and servicing.
Local safety regulations which must be
adhered to by the operator and by any
additional installation personnel.
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