Samson 3222 N Manuale di servizio

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

VS coefficient

7 Max. permissible differential pressure

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.

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