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SG Part-Turn Gearbox With Electric Actuator

SG62/SG83/SG120/SG123/SG123A/SG143/SG143A/SG200/SG200A/SG237/SG237A/SG242A/SG242A
SG series is a 90° rotating gear operator suitable for ball valves, butterfly valves, plug valves with manual, electric or hydraulic actuators.
Speed ratio: 31:1 ~ 190:1
Output torque: 650nm ~ 50000Nm
Gearbox material: ductile iron
Worm gear material: QT600-3
Protection level: IP67 ~ IP68
Input and output connection flanges are designed according to ISO 5210 and ISO 5211 standards.
Installation and operation instructions
The gearbox input end flange is connected to the electric actuator, the input shaft is connected to the electric actuator hole, and the flange bolts are installed and tightened.
Connect the lower flange of the gear operating mechanism to the upper flange of the valve, and slide the valve shaft into the hole on the worm gear. Tighten the flange bolts. Turn the handwheel clockwise to close the valve, and turn the handwheel counterclockwise to open the valve. A position indicator and position mark are installed on the top of the gear operating mechanism, and the position of the switch can be directly observed through the position indicator. The gear operating mechanism is also equipped with a mechanical limit screw, which can be adjusted and limited at the extreme position of the switch.
Product Features
Ductile iron housing
IP67 protection
Ductile iron worm gear
Nitrile rubber sealing material
Applicable to working conditions of -20℃~120℃
Customization
IP68 protection
Aluminum bronze worm gear
Stainless steel input shaft
Applicable to high temperatures up to 320℃
Applicable to low temperatures below -40℃

Main parts list

Parts

Material

Large cover

Ductile iron

Casing

Ductile iron

Worm

Carbon steel

Turbine/Quadrant

Ductile iron/QT600-3

End cover

Ductile iron

Signage

SUS201

 

Main Technical Parameter

Model

Speed Ratio

Electric actuator flange

Rated input torque(Nm)

Rated output torque(Nm)

Maximum output torque t(Nm)

ISO5210

N.M

N.M

N.M

SG62

31:1

F10

75

650

700

SG83

45:1

F10

100

1350

1400

SG120

70:1

F10

120

2700

2800

SG123

70:1

F10

100-120

3000

3000

SG123A

136:1

F10/F12

120

5700

6000

SG143

70:1

F10

160

4000

 

SG143A

136:1

F10

250

7000

8000

SG200

70:1

F16

400

9000

12000

SG200A

140:1

F16

400

16000

20000

SG237

70:1

F16

600

12000

14000

SG237A

140:1

F16

1000

40000

43000

SG242A

190:1

F16

600

32500

34000

SG242A

190:1

F25

1000

50000

50000

 

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