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Brand Name : Stard-gears
Model Number : SJ
Certification : IP67
Place of Origin : China
MOQ : Negotiable
Price : Negotiable
Payment Terms : D/P, T/T
Supply Ability : 2000 Pcs-6 weeks
Delivery Time : 20~30 work days
Packaging Details : Cartons or wooden cases
Material : cast steel (WCB)
Protection class : IP67
Operating temperature : -20℃~120℃
colour : Blue,Customer Require,Black
Product Name : Valve Gearbox
Application : General,Oil,Gas,Water,Valves For Solid/Liquid And Gas
Gate Valve Gearbox Partial - Turn Torque Rang 7000NM To 72000NM Protection grade IP67
SJ series multi-stage partial-turn gear operators
SJ series multi-stage partial-turn gear operators are widely used in water plants, chemical plants, and power plants and for general industrial applications. SJ multi-stage models have a speed ratio varying from 320:1 to 1728:1 and torque ranging from 7000NM to 72000NM.
Product Features
The product can meet the self-locking requirements, which can prevent valve shaft reversal due to internal pressure
 The design meets the requirement of self-locking of worm gear and worm
Customization
Main Components List
| Part name | Material | 
| Hand wheel | HT250/ GB9439-88 | 
| Worm shaft | 45GB/T699-1999 | 
| Housing | HT250/ GB9439-88 | 
| Baffle ring | JDB-3 | 
| Worm | 45GB/T699-1999 | 
| Worm gear | QT500-7/GB1348-88 | 
| Cover | HT250/GB9439-88 | 
| Indieator | Q235A GB/T700-2006 | 
Main Technical Parameter
| Model | Gear ratio | Rating input(Nm) | Rating output(Nm) | Efficiency(%) | Hand-wheel | 
| SJ320 | 320:1 | 90 | 7000 | 25 | 400 | 
| SJ330 | 330:1 | 150 | 12000 | 24 | 800 | 
| SJ410 | 410:1 | 160 | 17000 | 26 | 700 | 
| SJ520 | 520:1 | 165 | 23000 | 26 | 700 | 
| SJ560 | 1220:1 | 140 | 43000 | 25 | 800 | 
| SJ600 | 1422:1 | 160 | 60000 | 26 | 800 | 
| SJ720 | 1728:1 | 160 | 72000 | 26 | 800 | 

Major Client:CIRCOR
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