High Quality Aluminium Alloy Declutch Gearbox Manufacturer and Supplier

Aluminium Alloy Declutch Gearbox

Short Description:

This series consists of eight models with the speed ratio varying from 26:1 to 54:1 and the toque ranging from 300NM to 1200NM. The torque difference between every two adjacent models is small, helping to save a lot of costs for customers when selecting a specific product.

The Declutch Gearbox is specially designed for butterfly valve, ball valve & plug valve together with pneumatic actuator.

This device allows manual operation during installing, system testing if when air resource is not loaded.

It can mounted directly on most of the popular rack & pinion style pneumatic actuators in the market.

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Product Detail

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Instructions for Installation and Operation

Connect the bottom side of the reducer to the valve and the bracket face to the cylinder. Then slide the valve shaft into the inner hole on the cylinder until the valve shaft end is well matched with the square hole of the cylinder on all four sides.

A tooth collision may occur when rotating the lever (by 180° outwards) to engage the worm. In such case, you need to turn the hand-wheel to a certain angle so that they can become engaged with each other.Actuating the device through pneumatic and manual means simultaneously is not allowed.

Product Features

▪ Aluminum die-cast alloy
▪ Full stamped hand-wheel (200-350)
▪ IP65 grade protection
▪ Nickel-plated input shaft, with more resistance to corrosion
▪ Ductile iron worm gear
▪ NBR sealing material
▪ 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℃
▪ For marine use

Main Components List

Part name	Material
Small cap	YL113
Housing	YL113
Worm gear	QT500-7/ Bronze
Bracket cap	YL113
Hand wheel	Carbon structural steel

Main Technical Parameter

Model	ratio	Rating input(Nm)	Rating output(Nm)	Efficiency(%)	Hand-wheel
SLJ26	26:1	50	300	23	Φ200
SLJ38	38:1	65	550	23	Φ200
		70	620		Φ250
		80	700		Φ300
SLJ54	54:1	75	1000	25	Φ250
SLJ54	54:1	90	1200	25	Φ300