Samson 3222 N Service manual

Electric Control Valve
Type 3222 N/5857
Mounting and
Operating Instructions
EB 5867 EN
Edition October 2009
Type 3222 N/5857 Electric Control Valve consisting of
Type 3222 N Globe Valve with soldering ends and Type 5857 Actuator

2EB 5867 EN
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.
NOTICE
NOTICE indicates a property damage
message.
Note: Supplementary explanations, infor-
mation and tips
Definitions of the signal words used in these instructions

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
EB 5867 EN 3
Contents
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.

1 General safety instructions
For your own safety, follow these instructions concerning the mounting, start up and opera-
tion of the control valve:
4The control valves must be installed, started up and serviced by fully trained and qualified
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.
4For appropriate operation, make sure that the control valve is only used in applications
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.
4For installation and maintenance, make sure the relevant section of the pipeline is
depressurized and, depending on the process medium, drained as well. If necessary, al-
low the control valve to cool down or warm up to reach ambient temperature prior to
starting any work on it.
4The actuators are designed for use in low voltage installations.
For wiring and maintenance, you are required to observe the relevant safety regulations.
4Take necessary measures to ensure that the power supply cannot be reconnected inadver-
tently.
4Take care while performing adjustment work on live parts. Never remove any covers!
To avoid damage to any equipment, the following also applies:
4Proper shipping and appropriate storage are assumed.
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.
4EB 5867 EN
General safety instructions

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 (force-
locking) 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) deter-
mines the flow rate across the area released
between plug and valve seat (2).
The linear actuating force is transmitted di-
rectly over the actuator stem (7) to the plug
stem (5). When the actuator stem extends,
the valve plug (3) moves in the closing direc-
tion. 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.
EB 5867 EN 5
Design and principle of operation
Fig. 1 · Type 3222 N/5857 Control Valve
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
Type 5857
Actuator

2.1 Technical data for Type 3222 N Globe Valve
6EB 5867 EN
Design and principle of operation
Nominal size DN 15
Connection ISO 228/1-G ¾ B
Type of end connections (optional)
Threaded ends G ½
Welding ends
Soldering ends
Nominal pressure PN 16
KVS coefficient Standard 2.5
Special version 0.25 · 0.4 · 0.63 · 1 · 1.6
Valve travel 6 mm
Characteristic Equal percentage
Pressure balancing None
Max. perm. differential pressure Δp 6 bar
Type of sealing KVS ≤1 Metal sealing
KVS = 1.6 and 2.5 Soft sealing
Leakage rate (Class I acc. to IEC 60534) < 0.05 % of KVS coefficient
Max. permissible temperature 120 °C
Max. permissible
medium temperature
Treated water 120 °C
Non-flammable gases 80 °C
z value 0.43
Materials
Valve body CW602N (brass)
Plug Up to KVS = 1 1.4305
KVS = 1.6 and 2.5 1.4305 with EPDM seal
Plug stem 1.4305
Seat Up to KVS = 1 1.4305
KVS = 1.6 and 2.5 CW602N (brass)
Valve spring 1.4310 K
Welding ends 1.0254 (St 37)
Threaded ends Brass
Soldering ends CC491K (red brass, Rg 5)
Intermediate insulating piece 1.4305, CW617N (brass), PTFE, EPDM, FPM

2.1.1 Nameplate 2.1.2 Customer inquiries
Please submit the following details:
4Type designation
4Configuration ID (Var.-ID)
4Date of manufacture
EB 5867 EN 7
Design and principle of operation
SAMSON
Kvs Δp
1 Type designation
2 Configuration ID (Var.-ID)
3 Date of manufacture
4 Model number
5 Max. permissible temperature
6K
VS coefficient
7 Max. permissible differential pressure
1
23
5
76
4

3 Installation
If the valve and actuator are delivered sepa-
rately, first install the valve in the pipeline
and then mount the actuator.
3.1 Mounting position
4Choose the place of installation where
the ambient temperature does not ex-
ceed or fall below the permissible limits
specified for the actuator and that allows
you to freely access the control valve
even after the entire plant has been com-
pleted.
4Flush the pipeline thoroughly before in-
stallation.
4Never install the valve with the actuator
suspended downwards.
4Install a strainer (SAMSON Type 2 NI)
upstream of the control valve to prevent
any sealing parts, weld spatter or other
foreign matter carried along by the pro-
cess medium from impairing the proper
functioning of the valve, in particular, the
tight shut-off.
4The valve must be installed free of stress.
If necessary, support the piping near the
connections.
3.2 Strainer
4Install the strainer with the filter element
facing downwards upstream of the valve
inlet.
4Choose the place of installation to allow
enough space to remove the filter.
4Install the strainer with the flow direction
as indicated by the arrow on the body.
3.3 Additional installation
instructions
We recommend to install a hand-operated
shut-off valve both upstream of the strainer
and downstream of the control valve to be
able to shut down the plant for cleaning and
maintenance, and when the plant is not
used for longer periods of time.
8EB 5867 EN
Installation

4 Combination with Type 5857 Electric Actuator
4.1 Technical data for actuator
EB 5867 EN 9
Combination with Type 5857 Electric Actuator
Type 5857 Actuator Version Three-point stepping version With digital positioner
Connection to valve Force-locking Force-locking
Rated travel 6 mm 6 mm
Transit time for rated travel 20 s 30/20 2)/10 s 1)
Nominal thrust 300 N 300 N
Power supply 230 V (±10 %), 50 Hz
24 V (±10 %), 50 Hz
24VAC(
±10 %), (50 and 60 Hz)
24 V DC (±10 %) 3)
Power consumption Approx. 3 VA 5 VA
Manual override Yes Yes
Permissible ambient temperature 0 to 50 °C 0 to 50 °C
Permissible storage temperature –20 to 70 °C –20 to 70 °C
Degree of protection IP 42 IP 42
Protection class II II
Noise immunity EN 61000-6-2 EN 61000-6-2
Noise emission EN 61000-6-3 EN 61000-6-3
Weight Approx. 0.7 kg Approx. 0.7 kg
Digital positioner –
Input signal
–
0 to 10 V 1)
Position feedback 0 to 10 V 1)
Characteristic Linear 1)
1) Value adjustable in TROVIS-VIEW Configuration and Operator Interface.
Refer to EB 5857 EN for more details (also included in TROVIS-VIEW).
2) Default setting
3) 10 s applies to 24 V DC (–0 %, +10 %) for
Transit time for rated travel setting

4.2 Mounting the actuator on the
valve
1. Turn the handwheel (Fig. 2) counter-
clockwise only after disconnecting the
actuator from the power supply to re-
tract the actuator stem as far as it will
go.
2. Place the actuator on the valve connec-
tion or the intermediate insulating piece
and secure with the coupling nut (tight-
ening torque 20 Nm).
4.3 Electrical connection
DANGER!
Risk of electric shock!
When installing electric cables, you are
required to observe the regulations
governing electrical power plant
installation according to
DIN VDE 0100 as well as the
regulations of your local power supply
company.
Use a suitable power supply which
guarantees that no dangerous voltages
reach the device in normal operation
or in case of a fault in the system or
any other system parts.
Connect the actuator to the electrical
network only after the power supply is
first switched off. Make sure the power
cannot be switched on unintentionally!
Especially when a 24 V voltage supply
is used, wires with sufficiently large
wire cross-sections must be used to
guarantee that the permissible voltage
tolerances of
±
10 % are not exceeded!
10 EB 5867 EN
Combination with Type 5857 Electric Actuator
Fig. 2 · Manual override of Type 5857
Handwheel
Travel
indicator
NOTICE
The handwheel is used to move the actuator
stem. Only operate the handwheel when the
actuator is in the de-energized state.
In the version with digital positioner, do not op-
erate the handwheel while the actuator is in ser-
vice (absolute travel adjustment, see
EB 5857 EN), otherwise the feedback signal will
be shifted.