Samson 42-10 Mounting And Operating Instructions page 17

18
Legend for Fig. 3-1 and Fig. 3-2
1 Valve body
2 Seat
3 Plug
4 Plug stem
5 Threaded connection for diaphragm actuator
6 Actuator stem
7 Diaphragm stem
10 Actuator housing
10.1 Distance ring
11 Two diaphragms
11.1 Operating diaphragm for upstream pressure
11.2 Operating diaphragm for downstream pressure
12 Diaphragm rupture indicator
Fig. 3-2: Functional diagram of optional pressure switch
EB 3009 EN
Design and principle of operation
13 Set point springs
13.1 Force limiter
14 Control line 8x1 mm
15 Spacer bushing including seal
Housing bolts (two long bolts opposite each
16
other, DN 15 to 25/NPS ½ to 1 only)
16.1 Top housing bolts
16.2 Bottom housing bolts
17 Diaphragm plate nut
18 Pressure switch (optional)
19 Compensation chamber (optional)
20 Filler plug
21 Screw fitting (control line)
3-3