Samson 5821 Manual Download Page 2

NOTE

The Type 5822-30 Actuator and Type 5822-
31 Actuator require an external active spring
force of 140 N across the entire travel in
operating direction IN "actuator stem re-
tracts". These actuators can only be com-
bined with valves which are equipped with a
corresponding valve spring, e.g., Type 3213
Control Valve or Type 3214 Control Valve.

1.2 Principle of operation

The actuator unit is equipped with a spring
clutch which disengages the motor in the ap-

propriate final positions (torque dependently)
via two limit switches.

Type 5821 Actuator

 (Figs. 2 and 3)

In these versions, the motor of the actuator is
connected to the plug stem of the control
valve in a form-fit manner via the gear and
connecting rod. In force-locking design, a
tight connection is established by means of a
union nut of the actuator. The plug stem is
reset by the springs built in the valve.
Manual adjustment on the handwheel (3) is
only supported when the release button (2) is
simultaneously pressed. This sequence disen-

1.1 Versions

 

 Technical data

Actuator

Form-fit

Type

5821

-1

-2

-3

5822

-10

-11

-20

-21

-30

-31

-40

-41

Force-locking

-5

-6

-50

-60

-70

Fail-safe action

Without

With

Operating direction

OUT

IN

OUT

IN

OUT

IN

OUT

IN

Rated travel

mm

7.5

15

7.5

7.5

15

7.5

7.5

Transit time for rated travel

s

90

90

40

90

90

90

40

Transit time upon failure

s

8

8

8

5

Nominal thrust

N 600

300

300

320

130

1

)

1

)

Nominal closing thrust
of the reset spring

N

280

170

420 

1

) 170

170

Color of reset spring
(form-fit version)

Yellow

Grey

Red

Grey

Grey

Electrical connection

24, 110 or 230 V, 50 up to 60 Hz 

3

)

Power consumption

Motor of actuator: 4 VA

Electromagnet: 5 VA

Permissible ambient temperature:
Permissible storage temperature:
Permissible temperature on the connecting sleeve:

  0 to + 50 °C
–20 to +  70 °C
    0 to +110 °C

Degree of protection

IP 42

Weigth

(approx. kg)

1.3

1.5

Additional electrical equipment

Limit switches

2x direction dependent

Permissible load

a.c. voltage: 24 to 250 V, 3 A

d.c. voltage: 24 V, 3 A

Potentiometer

0 to 1000 

 (approx. 870 

 at rated travel), permissible load: 0.5 W 

2

)

Electrical positioner

Only with supply 24 V~ and version with potentiometer

Control signal

4 to 20 mA, 0 to 20 mA, 0 to 10 V–

Split-range operation

4 to 12 and 12 to 20 mA, 0 to 10 and 10 to 20 mA, 0 to 5 and 5 to 10 V–

1

) Depending on the springs of the connected control valve

2

) Other values on request

3

) 60 Hz for 5822 Actuator on request

2

Summary of Contents for 5821

Page 1: ...tuator are equipped with a spring mech anism which depending on the operating di rection opens or closes the connected valve Typetest The actuators with fail safe action OUT actu ator stem extends hav...

Page 2: ...41 Force locking 5 6 50 60 70 Fail safe action Without With Operating direction OUT IN OUT IN OUT IN OUT IN Rated travel mm 7 5 15 7 5 7 5 15 7 5 7 5 Transit time for rated travel s 90 90 40 90 90 90...

Page 3: ...ed again within the fail safe closing time The operating direction of the fail safe action IN or OUT depends on the version of the spring sleeve 6 3 5 5 1 5 2 1 4 1 5 1 12 1 12 2 1 1 1 2 1 3 3 4 7 6 C...

Page 4: ...valve first assemble the adapter connecting parts to the control valve Force locking version Always connect the actuator directly to the control valve 2 1 Attaching the adapter connecting parts 2 1 1...

Page 5: ...6 Plug stem 6 1 Coupling nut 6 2 Lock nut 8 Bonnet 9 Rod 10 Threaded pin Connecting parts 1070 6838 Connecting parts 1070 6837 Form fit connection Force locking connection Direct connection on valve...

Page 6: ...or adapter rod 4 Slide the clamp ring 6 2 downwards in the direction of the control valve until it stops causing the connecting clamps to close and lock into position The clamp ring can be moved for e...

Page 7: ...it Type 5822 Actuator only 1 Function related limit switch motor L N L N 12 11 13 PE 24 V 24 V Control signal V mA _ 1 Positioner 12 11 14 22 21 24 Limit switch 1 2 4 1 2 4 Note If several actuators a...

Page 8: ...r directly to the position indicator of the controller as indi cated in the wiring diagram Fig 8 Move through the travel range of the actuator and adjust the potentiometer so that the resistance value...

Page 9: ...ter clockwise to a small range If the input signal is zero the plug stem of the control valve must rest in the lower end posi tion i e actuator stem must be extended until it stops at the plug in the...

Page 10: ...isilluminate The motor then disen gages and the plug stem rests in the final po sition IMPORTANT The starting point zero for the control valve always refers to the closing position Fig 11 With reverse...

Page 11: ...5 Dimensions in mm Force locking connection 150 60 56 SW 36 Only for Type 5821 Actuator 70 M32x1 5 57 6 80 122 156 178 150 60 57 6 80 Only for Type 5821 Actuator 70 Form fit connection 11...

Page 12: ...SAMSON AG MESS UND REGELTECHNIK Weism llerstra e 3 D 60314 Frankfurt am Main Postfach 10 19 01 D 60019 Frankfurt am Main Telefon 0 69 4 00 90 Telefax 0 69 4 00 95 07 S C EB 5821 5822 E...

Reviews: