ARI Armaturen PREDU 700 EN - Manual

Rev. 0040701000 1714 englisch Page 2-1
1.0 General information on operating instructions2-2
2.0 Notes on possible dangers ............................... 2-2
2.1 Significance of symbols ...................................... 2-2
2.2 Explanatory notes on safety information ............. 2-2
3.0 Storage and transport ....................................... 2-3
4.0 Description ......................................................... 2-3
4.1 Scope of applications .......................................... 2-3
4.2 Operating principles ............................................ 2-4
4.3 Diagram .............................................................. 2-5
4.3.1 Parts ........................................................ 2-5
4.4 Technical data - remarks ..................................... 2-6
4.5 Marking .............................................................. 2-7
4.5.1 Marking of special flanges ....................... 2-8
5.0 Installation .......................................................... 2-9
5.1 General notes on installation............................... 2-9
5.2 Requirements at the place of installation .......... 2-10
5.3 Installation instructions concerning actuators ... 2-10
5.4 Control line, flow restrictor, water seal pot .........2-11
5.5 System arrangement - pressure reducing
station................................................................ 2-12
5.6 Strainer ............................................................. 2-13
5.7 Safety valves ..................................................... 2-13
6.0 Putting the valve into operation...................... 2-13
7.0 Care and maintenance ..................................... 2-14
8.0 Troubleshooting ............................................... 2-14
9.0 Troubleshooting table .................................... 2-15
10.0 Dismantling the valve or the top part .......... 2-17
11.0 Warranty / Guarantee ..................................... 2-17
Operating and installation instructions
Pressure reducing valve PREDU
®
Contents
PREDU
®
(Series 700)