2
2 L12 71 en
READ THESE INSTRUCTIONS FIRST!
These instructions provide information about safe handling and operation of the valve.
If you require additional assistance, please contact the manufacturer or manufacturer's representative.
Addresses and phone numbers are printed on the back cover.
SAVE THESE INSTRUCTIONS!
Subject to change without notice.
All trademarks are property of their respective owners.
Table of Contents
1
GENERAL ..............................................................3
1.1
Scope of the manual ...........................................3
1.2
Valve construction ...............................................3
1.3
Valve markings ......................................................3
1.4
Technical specifications .....................................4
1.5
Valve approvals .....................................................4
1.6
CE marking ..............................................................4
1.7
Recycling and disposal .......................................4
1.8
Safety precautions ..............................................4
2
TRANSPORTATION, RECEPTION AND
STORAGE ..............................................................5
3
INSTALLATION .....................................................5
3.1
General .....................................................................5
3.2
Mounting into the pipeline............................... 5
3.3
Actuator ...................................................................7
4
COMMISSIONING .................................................7
5
MAINTENANCE ....................................................7
5.1
Maintenance general ..........................................7
5.2
Removing the valve from the pipeline .........7
5.3
Replacing the gland packing ...........................7
5.4
Replacing the seat ring,
sizes DN 700–1400 ............................................... 9
5.5
Replacing the disc, shafts and bearings,
sizes DN 700–1400 ...............................................9
5.6
Assembling the valve ....................................... 10
6
DETACHING AND MOUNTING THE
ACTUATOR .........................................................11
6.1
General .................................................................. 11
6.2
Detaching the actuator .................................... 11
6.3
Mounting the actuator onto the valve ....... 11
6.4
Detaching and mounting the other
actuator types ..................................................... 13
6.5
Stop screw adjustment .................................... 13
7
TOOLS .................................................................15
8
ORDERING SPARE PARTS ..................................15
9
EXPLODED VIEW AND PARTS LIST ...................18
10
DIMENSIONS AND WEIGHTS ............................19
11
TYPE CODE .........................................................22
Summary of Contents for L12 Series
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