SLJ WCB Declutch Gearbox gear operators

SLJ WCB Declutch Gearbox gear operators

SLJ WCB Declutch Gearbox gear operators

Short Description:

This series consists of eight models with the speed ratio varying from 26:1 to 520:1 and the toque ranging from 300NM to 22000NM. 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.


Product Detail

Product Tags

Instructions for Installation and Operation

1. Installation suggestion:
1)  Make sure the position of open or close on the gearbox is correspond to the valve’s position.
2)  Avoid device failure due to lack of inspection of step one.

2. Adjustment process:
1) Please adjust the gearbox according to the position of valves, loosing gearbox corresponding limit screw, operating gearbox to make the valve on the correct position; then locked this limit screw. Operate the gearbox to turn the valve on another position, redone the above step and adjust the valve on the correct position,tight the cap nut.
(Pay attention to the use of "O" type sealing ring and flat washer)
2) Please pay attention to sequential adjust according to the position of valves.
3) After the adjustment is completed, operating the gearbox for full open / full closed to check the valve is on correct position.

Installation diagram of limit screw:

product1

3. Maintenance
1) When gearbox is delivered, the gearbox has been adjusted on the correct position, when the user need to do some adjustment just operated according to the adjustment process.
2) When the gearbox is delivered, the gearbox has been filled with sufficient grease, the users do not need to add the grease any more.
3) If the gearbox is used in bad condition, check the state of the gearbox regularly. For example,if the fastener is loose or there is no oil leakage, Etc.
4) Warranty period: one year from the date of delivery. Duo to the quality problem, we will repair without any charges if during the warranty period, and only charge the material cost for repairing if more than the warranty period. By the buyer's damage caused by human factors, repair or materials provided by the supplier are at the cost price
5) If a product inventory stored for a long time, need to do a good job of surface protection, more important places are the flange connecting face and the valve shaft mounting hole, And check regularly.

Product Features

▪ Cast steel housing
▪ 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

▪ Stainless steel or LCB casing
▪ 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

WCB

Housing

WCB

Worm gear

QT500-7/ Bronze

Bracket cap

WCB

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
90 1200 Φ300
SLJ80 80:1 95 2000 26 Φ350
SLJ78 78:1 160 3200 26 Φ600
SLJ270 270:1 90 6000 25 Φ500
SLJ320 320:1 100 8000 25 Φ500
SLJ520 520:1 160 22000 25 Φ700

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