Samson 3248-1, Mounting And Operating Instructions

Page: 2 / 16

Contents Page
1 Design and principle of operation . . . . . . . . . . . . . . . . . . . 4
2 Assembling and adjusting valve and actuator
. . . . . . . . . . . . . . . 6
2.1 Option to pretension the springs for actuator version
"Actuator stem extends" . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2 Valve and actuator that have different rated travels . . . . . . . . . . . 7
3 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.1 Mounting position . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.2 Signal pressure line. . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5 Maintenance
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5.1 Replacing packing, seat, and plug . . . . . . . . . . . . . . . . . . . 9
6 Version with split plug stem extension
. . . . . . . . . . . . . . . . . 11
7 Customer inquiries . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2
EB 8093 EN
Contents
Note:
Non-electrical actuators and valves do not have their own potential ignition source
according to the risk assessment in the rare incident of an operating fault, corresponding to
EN 13463-1: 2001 paragraph 5.2, and therefore do
not fall within the scope of the
European Directive 94/9/EC.
Refer to paragraph 6.3 of EN 60079-14:1977 VDE 0165 Part 1 concerning connection to
equipotential bonding system.