• Constructed of strong zinc die castings.
• Hesitation feature available for unit ventilator cycles requiring a minimum percentage of outdoor air.Pneumatic Unit Ventillator Damper Actuator, Medium Force, Spring Range: 5-12 PSI| Overview | Used to control the damper on unit ventilators. Can be adapted to various unit ventilator control cycles. Replacement devices are available for Johnson, Powers, Robertshaw, Barber-Colman, and older Honeywell unit ventilator damper actuators. |
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| Actuator Spring Range (psi) | 5 psi to 12 psi |
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| Actuator Spring Range (kPa) | 34 kPa to 83 kPa |
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| Stroke (in.) | 2-1/8 in. to 2-1/2 in. |
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| Stroke (mm) | 54 mm to 63 mm |
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| Diaphragm Effective Area (sq in.) | 11 sq in. |
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| Diaphragm Effective Area (sq cm) | 71 sq cm |
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| Maximum Safe Operating Pressure (psi) | 25 psi |
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| Maximum Safe Operating Pressure (kPa) | 172 kPa |
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| Fail Safe Mode | Spring Return |
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| Air connections | 1/8 in. NPT |
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| Operating Humidity Range (% RH) | 5 to 95% RH |
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| Temperature Range (F) | -20 F to +160 F |
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| Temperature Range (C) | -29 C to +71 C |
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| Dimensions (in.) | 5 1/8 in. high x 6 7/8 in. wide (with arm) |
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| Dimensions (mm) | 130 mm high x 175 mm wide (with arm) |
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Product Family
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