Samson 3347 - Page 18

3-2 EB 8097 EN
Design and principle of operation
25
2
4
3
34
24
9
5
10
S
8
8.1
1
8.2
23
3
2
4
34
24
9
10
5
1
8
8.3
8.2
8.1
7
Fig.3-1: (top) Sectional drawing of Type3347-
1 Control Valve (with Type3271
Actuator) · Cast body with PTFE seal
Fig.3-2: (right) Sectional drawing of Type3347-
7 Control Valve (with Type3277
Actuator) · Cast body with PEEK seal
Legend for Fig.3-1 to Fig.3-4
1 Yoke
2 Plug
3 Stem seal
4 Body
5 Travel indicator scale
7 Stem connector clamps
8 Actuator
8.1 Actuator stem
8.2 Ring nut
8.3 Compression springs
8.4 Stem connector
9 Stem connector nut
10 Lock nut
23 Seal
24 Bearing bushing/wiper
seal
25 Centering ring
26 O-ring seal
34 Clamp
S Signal pressure
connection