MP918A1024 Honeywell Damper Actuator
$1,418.60
THE HONEYWELL MP918A1024 Damper Actuator 10 PSI SPAN POSITIVE Positioner. INCLUDES EXTERNAL Mounting Bracket AND CRANKAR
Honeywell MP918A1024 Pneumatic Damper Actuator – 10 PSI Span, With Mount Bracket & Crank Arm
THE HONEYWELL MP918A1024 Damper Actuator 10 PSI SPAN POSITIVE Positioner. INCLUDES EXTERNAL Mounting Bracket AND CRANKAR
Overview
The Honeywell MP918A1024 is a pneumatic damper actuator built for precision airflow control in HVAC systems. It includes a positive positioner, and comes with mounting bracket and crank arm so it’s ready for damper linkage. Designed for proportional control over a damper blade with strong durability, it works reliably in medium-to-large dampers under demanding conditions.
Specifications
| Specification | Details |
|---|---|
| Brand / Model | Honeywell MP918A1024 / MP918A series |
| Type | Pneumatic damper actuator with positive positioner |
| Pressure Range / Operating Span | 8-13 psi; factory adjusted for 10 psi span |
| Span Feedback Spring | Includes 5 psi spring; other springs (3 psi) available |
| Maximum Air Supply Pressure | 25 psi |
| Air Connections | Push-on barbs: pilot tubing 5/32″ OD; main and branch 1/4″ OD |
| Stroke | 3.5 inches (90 mm) |
| Diaphragm Type & Area | Rolling neoprene diaphragm; effective area ~ 23.8 sq in (≈ 154 sq cm) |
| Operating Temperature | -20°F to 158°F (≈ -29°C to 70°C) |
| Weight | ≈ 16 lb |
| Features Included | Mounting bracket and crank arm |
| Materials & Mounting Options | Aluminum housing; versatile mounting hardware (internal/external, trunnion bracket, etc.) |
| Use Case | Proportional control of damper blades where precise modulation is required |
Features & Benefits
-
Includes a positive positioner for precise damper blade positioning
-
Rolling diaphragm design ensures long life and reliable operation
-
Low-friction shaft bearing enhances actuator responsiveness and reduces wear
-
Versatile mounting options and hardware make installation flexible
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Accurate 10 psi span helps maintain linear control; optional springs allow adjusting span to 3 or 5 psi
Applications
-
Variable Air Volume (VAV) systems needing precise airflow control
-
Large or medium size dampers in commercial HVAC installations
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Retrofit or new installations where dampers must be modulated rather than simply open-/closed
-
Environments requiring actuator reliability over wide temperature range
Installation & Maintenance Notes
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Mount with correct bracket and crank arm for damper linkage; ensure proper alignment to avoid binding
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Provide clean, dry compressed air; avoid moisture or contaminants that could damage the diaphragm
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If changing span springs, follow manufacturer’s instructions and test for required range and responsiveness
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Periodic inspection: check linkage, seals, and diaphragm for wear or leaks
Warranty & Assurance
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Manufactured to Honeywell’s quality standards for pneumatic actuator products
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Reliability assured under specified operating conditions; warranty valid when installed and used as designed
Related Products
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Other MP918 series damper actuators with different span / spring ranges
-
MP918B variants (without positioner) where cost or simplicity is preferred
-
Mounting accessories such as alternate brackets, crank arms, and kit springs
| Weight | 16 lbs |
|---|---|
| Dimensions | 24 × 11 × 10 in |
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