Electric-powered Partial-turn Gearbox

Electric-powered Partial-turn Gearbox

Electric-powered Partial-turn Gearbox

Short Description:

SG series is a 90° rotary gear operator suitable for use on ball valves, butterfly valves, and plug valves with a manual, electric or hydraulic actuator.

Ratio Speed: 31:1 ~ 190:1;

Output Torque: 650 Nm ~ 50000Nm

Gearbox Material: Ductile iron

Worm Gear Material: QT600-3

Ingress of Protection: IP67 ~ IP68

Both the input and output connecting flanges are designed as per standards ISO 5210 and ISO 5211.


Product Detail

Product Tags

Instructions for Installation and Operation

The flange of the input end of the gearbox is connected to the electric actuator, the input shaft is connected to the hole of the electric actuator, the flange bolt is installed and tightened.

Connect the bottom flange of the gear operator to the upper flange of the valve and slide the valve shaft into the hole on the worm gear. Tighten the flange bolt. The valve can be closed by turning the hand-wheel clockwise and opened by turning the hand-wheel counterclockwise. On the upper face of the gear operator, a position indicator and a position marking are mounted, through which the position of switch can be directly observed. The gear operator is also equipped with a mechanical limit screw, which can be adjusted and function to limit the position at the switch extreme position.

Product Features

▪ Ductile iron housing
▪ IP67 grade protection
▪ Ductile iron worm gear
▪ NBR sealing materials
▪ Suitable for -20℃ ~ 120℃ working conditions

Customization

▪ IP68 grade protection
▪ Aluminum-bronze worm gear
▪ Stainless steel input shaft
▪ For high temperature up to 320℃
▪ For low temperature down to -40℃

Main Components List

Part name Material
Cover Ductile iron
Housing Ductile iron
Worm Carbon Steel
Worm gear/ Quadrant Ductile Iron/QT600-3
Cover Ductile iron
Indieator SUS201

Main Technical Parameter

Model

Gear ratio

Electric actuator flange

Rating input(Nm)

Rating output(Nm)

Maximum output moment(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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