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Product Specifications:
| Item | Pneumatic Actuator |
| Actuator Connection | Pivot |
| Actuator Type | Linear |
| Air Connection Gender | Female |
| Air Connection Size | 1/8" |
| Air Connection Type | NPT |
| Application | Air Valves, Dampers |
| Diaphragm Material | Rubber |
| Fire/smoke Applications | UL Recognized Components For Fire/Smoke Applications |
| For Media | Air |
| For Use With | Dampers Or Air Valves |
| Force @ 0 Psi | 88 lbf. |
| Height | 4 5/8" |
| Included | Clevis |
| Included Positioner | Positioner Not Included |
| Length | 10" |
| Manufacturer Series | 331 Series |
| Max. Air Pressure | 30 psi |
| Max. Control Pressure | 30 psi |
| Max. Operating Temp. | 200°F |
| Max. Spring | 13 psi |
| Min. Operating Temp. | -20°F |
| Min. Spring | 8 psi |
| Mounting | Pivot |
| Net Force Exerted @ 0 Psi | 33 lbs. |
| Net Force Exerted @ 18 Psi | 55 lbs. |
| Nominal Spring | 8 psi to 13 psi |
| Operating Pressure | 8 psi to 13 psi |
| Overall Depth | 4 5/8" |
| Overall Length | 9 3/8" |
| Overall Width | 4 5/8" |
| Provides | Modulating Or Two Position Control |
| Specific Valve Action | Spring Return Down |
| Spring Material | Steel |
| Stem Material | Stainless Steel |
| Stroke | 4" |
| Width | 4.594" |
Shipping Info:
| Ship weight (kg) | 1.44 |
| Ship height (cm) | 11.75 |
| Ship length (cm) | 23.81 |
| Ship width (cm) | 11.75 |
| Country of Origin | US |
Product Variants
| Product | Model | Overall Width | Nominal Spring | Overall Depth | Height | Stem Material | Actuator Connection | Mounting | Force @ 0 Psi | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
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331-3001 | 4 5/8" | 3 psi to 13 psi | 4 5/8" | 4 5/8" | Stainless Steel | Clevis | Extended Shaft | 33 lbf. | €271.53 | |
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331-3000 | 4 5/8" | 3 psi to 7 psi | 4 5/8" | 4 5/8" | Stainless Steel | Pivot | Extended Shaft | 33 lbf. | €279.96 | |
![]() |
331-3013 | 6 3/16" | 3 psi to 13 psi | 20 13/16" | 7 1/8" | Stainless Steel | Clevis, Pivot | Extended Shaft | 54 lbf. | €427.17 | |
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331-4514 | - | - | - | - | - | - | - | - | €176.86 | |
![]() |
331-4814 | 4" | 8 psi to 13 psi | 3 15/16" | 3.938" | Steel | Clevis | Fixed | 64 lbf. | €158.42 | |
![]() |
332-2973 | 6 15/16" | 8 psi to 13 psi | 20 13/16" | 7 1/2" | Stainless Steel | Clevis, Pivot | Extended Shaft | 88 lbf. | €558.58 | |
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331-3060 | 7 3/16" | 8 psi to 13 psi | 7 1/8" | 7 1/8" | Stainless Steel | Pivot | Pivot | 54 lbf. | €353.83 |
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POWERS 331-2961 Pneumatic Actuator, 8 to 13, 8 to 13 psi, 4 Inch Stroke, 30 psi Max. Air Pressure
€204.49 /unit




