ARI Armaturen STEVI AS 350 DN15-50 EN - Manual

Rev. 0040322000 3413 englisch page 2-1
Contents
Operating and installation instructions
Y-pattern processing valve - STEVI
®
AS 350
DN 15 - 50
1.0 General information on operating
instructions ..................................................2-2
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 ................................2-2
4.0 Description...................................................2-3
4.1 Scope of applications .......................................... 2-3
4.2 Operating principles ............................................ 2-3
4.3 Diagram............................................................... 2-5
4.4 Technical data ..................................................... 2-5
4.5 Marking ............................................................... 2-6
5.0 Installation....................................................2-7
5.1 General notes on installation............................... 2-7
5.2 Requirements at the place of installation ............ 2-8
5.3 Installation instructions concerning actuators ..... 2-8
5.4 Installing valves with butt weld ends ................... 2-8
6.0 Putting the valve into operation ................ 2-9
7.0 Care and maintenance................................ 2-9
7.1 Replacement of bonnet ....................................... 2-9
7.2 Tightening torques ............................................ 2-10
8.0 Troubleshooting ........................................ 2-10
9.0 Troubleshooting table ............................. 2-10
10.0 Dismantling the valve or the top part.... 2-11
11.0 Warranty / Guarantee .............................. 2-11
12.0 Manufacturers declaration ..................... 2-12
13.0 EC declaration of conformity (ATEX) .... 2-13
Series 350