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Product Specifications:
| Item | Linear Pneumatic Actuator |
| Actuator Connection | Pivot |
| Actuator Type | Linear |
| Air Connection Gender | Female |
| Air Connection Size | 1/8" |
| Air Connection Type | NPT |
| Application | Dampers, High Velocity Mixing Boxes |
| Control Pressure - Maximum | 20 psi |
| Diaphragm Material | Rubber |
| Fire/smoke Applications | Not UL Recognized Components For Fire/Smoke Applications |
| For Media | Air |
| Force At 0 Psi | 64 lbf. |
| Height | 4 3/4" |
| Includes Positioner | Positioner Not Included |
| Max. Air Pressure | 30 psi |
| Mounting | Extended Shaft |
| Mounting Type | Pivot |
| Nominal Spring Range | 8 to 13 psi |
| Nominal Spring Range | 8 psi to 13 psi |
| Operating Temperature - Maximum | 160°F |
| Operating Temperature - Minimum | -20°F |
| Overall Depth | 4 3/4" |
| Overall Length | 6 15/16" |
| Overall Width | 4 3/4" |
| Specific Valve Action | Spring Return Down |
| Spring Material | Steel |
| Spring Range Maximum | 13 psi |
| Spring Range Minimum | 8 psi |
| Stem Material | Steel |
| Stroke | 2 3/8" |
| Width | 4 3/4" |
Shipping Info:
| Ship weight (kg) | 1.72 |
| Ship height (cm) | 16.51 |
| Ship length (cm) | 30.99 |
| Ship width (cm) | 16 |
| HS code | 8412390080 |
| Country of Origin | US |
Product Details:
- Net Force Exerted @ 0 PSI (24 lb.)
- Net Force Exerted @ 18 PSI (88 lb.)
- Provides: Gradual or Positive Actuation of Dampers
Product Variants
| Product | Model | Stroke | Height | Mounting Type | Nominal Spring Range | Price | |
|---|---|---|---|---|---|---|---|
![]() |
331-2973 | 4" | 7 1/2" | Pivot | - | €394.71 |
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SIEMENS 331-4811 Linear Pneumatic Actuator Pivot
€232.76 /unit
