Contents
1 General information 18
2 General safety information 18
2.1 Information for service and
operating personnel 19
2.2 Warning notes 19
2.3 Symbols used 20
3 Defi nition of terms 20
4 Intended area of use 20
5 Technical data 20
5.1 Ball valve GEMÜ 707 21
5.2 Ball valve GEMÜ 712 21
6 Order data 22
6.1 Ball valve GEMÜ 707 22
6.2 Ball valve GEMÜ 712 22
7 Manufacturer's information 23
7.1 Transport 23
7.2 Delivery and performance 23
7.3 Storage 23
7.4 Tools required 23
8 Functional description 23
9 Construction 23
10 Installation and operation 24
10.1 Installing the ball valve 24
10.2 Operation 26
11 Commissioning 27
12 Inspection and servicing 28
12.1 GEMÜ 712 - General information
for hand lever replacement 28
12.2 Replacing the hand lever 28
12.2.1 Disassembling the hand lever 28
12.2.2 Assembling the lever 29
12.3 Replacing spare parts 29
12.3.1 Replacing spindle seals 29
12.3.2 Replacing seats 29
12.3.3 Replacing the ball 30
13 Disassembly 30
14 Disposal 30
15 Returns 30
16 Information 30
17 Troubleshooting /
Fault clearance 31
18 Sectional drawings and
spare parts 31
18.1 Sectional drawing GEMÜ 707 31
18.2 Sectional drawing and spare
parts GEMÜ 712 32
19 EU Declaration of conformity 33
1 General information
Prerequisites to ensure that the GEMÜ valve
functions correctly:
7 Correct transport and storage
7 Installation and commissioning by trained
personnel
7 Operation according to these installation,
operating and maintenance instructions
7 Recommended maintenance
Correct installation, operation, servicing
and repair work ensure faultless ball 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.
All rights including copyright
and industrial property rights are
expressly reserved.
2 General safety information
The safety information does not take into
account:
7 Unexpected incidents and events, which
may occur during installation, operation
and servicing.
7 Local safety regulations which must be
adhered to by the operator and by any
additional installation personnel.
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707, 712