Spring Return Pneumatic Rotary Valve Actuator - Emergency Shut Off Valve with 789-1345 Nm Torque Range
Spring return scotch yoke pneumatic actuators designed for automated valve operation in industrial applications. These highly sealed rotary valve actuators provide reliable emergency shut-off functionality across multiple industries.
- High-quality aluminum alloy extruded cylinder body with hard anodized surface for extended service life
- Temperature range: -20°C to +80°C (Standard), -35°C to +80°C (Low temperature), -15°C to +150°C (High temperature)
- Independent external travel stop adjustment bolts with ±5° precision at both open and close directions
- NBR rubber O-rings for standard temperature operation; Viton or Silicone available for extreme temperatures
- Low-friction, long-life compound materials prevent direct metal-to-metal contact
- Available in die-cast aluminum with polyester paint, PTFE coating, or nickel plating
Widely used in petroleum and petrochemical, steel, shipbuilding, energy, electric power, water treatment, paper making, oil refining, metallurgy, air conditioning, electronics and related industries.
| Model | Spring Torque (Nm) | Air Torque at 3BAR (Nm) | Air Torque at 4BAR (Nm) | Air Torque at 5BAR (Nm) | Air Torque at 6BAR (Nm) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AST | ART | AET | AST | ART | AET | AST | ART | AET | AST | ART | AET | ||
| VSF14-200SR5 | 789 | 320 | 110 | 47 | 597 | 276 | 324 | 877 | 456 | 594 | 1151 | 609 | 878 |
| VSF14-250SR5 | 1345 | 490 | 150 | 12 | 917 | 412 | 448 | 1347 | 671 | 818 | 1798 | 935 | 1320 |
| VSF14-300SR5 | 1880 | 707 | 230 | 62 | 1337 | 609 | 692 | 1908 | 975 | 1235 | 2598 | 1365 | 1953 |
- AST - Air Start Torque / SST - Spring Start Torque
- ART - Air Run Torque / SRT - Spring Run Torque
- AET - Air End Torque / SET - Spring End Torque
| Professional technical team ensuring advanced design | Own factory with competitive pricing and quality control |
| 100% product inspection by dedicated QC team | CE and ISO certified products accepted worldwide |
| Direct import/export capability with small order acceptance | High-quality materials with advanced production equipment |
| Competitive pricing with short delivery times | Efficient sales team and excellent customer service |
1-Year Warranty: All products come with comprehensive warranty coverage and are guaranteed to be in new condition with OEM or original packaging.
Packaging: Custom packaging options available to ensure perfect condition upon delivery.
Payment Terms: T/T (wire transfer) or Western Union accepted. 30% deposit with 70% balance before shipment.
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