Samson EB 8111 EN, Монтаж и эксплуатация

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EB 8111/8112 EN 3-1
Design and principle of operation
3 Design and principle of oper-
ation
The Type 3321 Valve is a single-seated
globe valve. This valve is preferably to be
combined with the following SAMSON actu-
ators:
− Type 3371 Pneumatic Actuator
− Type 3372 Electropneumatic Actuator
− Type 3374 Electric Actuator
− Type 5824 Electric Actuator
The seat (4) and plug with plug stem (5) are
installed in the body (1). The plug stem is
connected to the actuator stem (A3/A7) by a
stem connector (A30/A31) and sealed by
the spring-loaded packing (15).
The process medium flows through the valve
in the direction indicated by the arrow in the
flow-to-open direction. The plug position de -
termines the cross-sectional area between
the seat and plug.
The position of the plug is changed by the
control signal acting on the actuator.
Fig. 3-1: Type 3321 Valve,
DN 15 to 50/NPS ½ to
2; mounting using a
crossbeam and central
nut (form B)
A11
A3
8
4
1
15
14
17
5
A30
98
97
96
13
A17
A25