China Aluminium Alloy Quarter-Turn Manual Gearbox Manufacturer and Supplier | TCT

Aluminium Alloy Quarter-Turn Manual Gearbox

Short Description:

SD series partial-turn gear operators adopt a cast aluminum casing and are suitable for conventional industrial applications in power supply, hydro-electric generation, fire fighting, and HVAC systems.


Product Detail

Product Tags

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

▪ Lightweight aluminium die-cast alloy (ACD 12) casing
▪ IP65 graded protection
▪ Nickel-phosphorus plated input shaft
▪ NBR sealing materials
▪ Suitable for -20℃~120℃ working conditions

Customization

▪ Aluminum-bronze worm gear
▪ Stainless steel input shaft

Main Components List

Part name

Material

Cover

Aluminum alloy

Housing

Aluminum alloy

Worm gear/ Quadrant

Ductile Iron

Input shaft

Protected Steel

Position indicator

Polyamide66

Main Technical Parameter

Model

Gear ratio

Rating input(Nm)

Rating output(Nm)

Hand-wheel

SD-10

40:1

16.5

150

100

SD-15

37:1

25

250

150

SD-50

45:1

55

750

300

SD-120

40:1

100

1200

400

Maintenance

To ensure reliable gearbox operation, the maintenance instructions included in this manual must be observed.
1.After the commissioning is completed, it is recommended that to perform a test run every six months;
2.Check the gearbox operation record for this cycle to see if there is any abnormality record.
3.Check the gearbox for leaks.
4.Check the bolts of the gearbox to the flange on the valve.
5.Check all fastening bolts on the gearbox.
6.Check the accuracy of the gearbox position indicator and tightening of limit adjustment bolt (If the gearbox used in frequent vibration circumstance, it is recommended that checking the condition in shorter term)


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