Nodular Cast Iron Motor Operated Valve Actuator Gearbox With Electric Actuator

SG series electric-powered partial-turn gear operators

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: WCB

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.

Instructions for Installation and Operation

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

WCB casing
Welded hand-wheel (200 or above)
IP67 grade protection
Nickel-plated input shaft, with more resistance to corrosion
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

Main Technical Parameter