Samson 3222 N, 5857 Mounting And Operating Instructions

Electric Control Valve

Type 3222 N/5857

Type 3222 N/5857 Electric Control Valve consisting of
Type 3222 N Globe Valve with soldering ends and Type 5857 Actuator

Mounting and
Operating Instructions

EB 5867 EN

Edition October 2009

Definitions of the signal words used in these instructions

DANGER!

DANGER indicates a hazardous situation
which, if not avoided, will result in death or
serious injury.

WARNING!

WARNING indicates a hazardous situation
which, if not avoided, could result in death
or serious injury.

2 EB 5867 EN

NOTICE

NOTICE indicates a property damage
message.

Note: Supplementary explanations, infor
mation and tips

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Contents

Contents Page

1 General safety instructions . . . . . . . . . . . . . . . . . . . . . . . 4

2 Design and principle of operation . . . . . . . . . . . . . . . . . . . 5

2.1 Technical data for Type 3222 N Globe Valve . . . . . . . . . . . . . . 6

2.1.1 Nameplate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.1.2 Customer inquiries . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3.1 Mounting position . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3.2 Strainer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3.3 Additional installation instructions . . . . . . . . . . . . . . . . . . . . 8

4 Combination with Type 5857 Electric Actuator . . . . . . . . . . . . . 9

4.1 Technical data for actuator . . . . . . . . . . . . . . . . . . . . . . . 9

4.2 Mounting the actuator on the valve. . . . . . . . . . . . . . . . . . . 10

4.3 Electrical connection. . . . . . . . . . . . . . . . . . . . . . . . . . 10

5 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

6 Dimensions in mm and weights . . . . . . . . . . . . . . . . . . . . 14

Note: More detailed information on Type 5857 Electric Actuator can be found in the

Mounting and Operating Instructions EB 5857 EN available on the Internet at
www.samson.de.

EB 5867 EN 3

General safety instructions

1 General safety instructions

For your own safety, follow these instructions concerning the mounting, start up and opera
tion of the control valve:

The control valves must be installed, started up and serviced by fully trained and qualified

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personnel only, observing the accepted industry codes and practices.
Make sure employees or third persons are not exposed to any danger.
All safety instructions and warnings in these mounting and operating instructions,
particularly those concerning installation, start-up and maintenance, must be observed.

For appropriate operation, make sure that the control valve is only used in applications

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where the operating pressure and temperatures do not exceed the operating values
based on the sizing data submitted in the order.
Note that the manufacturer does not assume any responsibility for damage caused by
external forces or any other external factors.
Any hazards which could be caused in the control valve by the process medium or
operating pressure are to be prevented by means of appropriate measures.

For installation and maintenance, make sure the relevant section of the pipeline is

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depressurized and, depending on the process medium, drained as well. If necessary, al­low the control valve to cool down or warm up to reach ambient temperature prior to
starting any work on it.

The actuators are designed for use in low voltage installations.

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For wiring and maintenance, you are required to observe the relevant safety regulations.
Take necessary measures to ensure that the power supply cannot be reconnected inadver-

4

tently.
Take care while performing adjustment work on live parts. Never remove any covers!

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To avoid damage to any equipment, the following also applies:

Proper shipping and appropriate storage are assumed.

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Note: The control valves fulfill the requirements of the European Pressure Equipment Directive
97/23/EC. Valves with a CE marking have a declaration of conformity which includes infor
mation about the applied conformity assessment procedure. The declaration is available on
request.

4 EB 5867 EN

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2 Design and principle of

operation

The actuator in the three-point stepping ver
sion consists of a reversible synchronous
motor and a maintenance-free gear.

The version with digital positioner contains a
stepper motor which can be supplied with
any voltage regardless of the frequency.

Actuator and valve are connected (force­locking) over a coupling nut (6). An interme
diate insulating piece can be used for insu
lated pipelines.

The medium flows through the single-seated
globe valve in the direction indicated by the
arrow. The position of the plug (3) deter­mines the flow rate across the area released
between plug and valve seat (2).

The linear actuating force is transmitted di­rectly over the actuator stem (7) to the plug
stem (5). When the actuator stem extends,
the valve plug (3) moves in the closing direc­tion. The plug stem follows the actuator stem
owing to the force of the valve spring (4) as
the actuator stem retracts, causing the valve
to open.

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Design and principle of operation

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1 Valve body

1.1 Connection nut with gasket and
welding ends (accessories)

2 Seat
3 Plug
4 Valve spring
5 Plug stem
6 Coupling nut
7 Actuator stem

Fig. 1 · Type 3222 N/5857 Control Valve

Type 5857
Actuator

EB 5867 EN 5