Description
The Honeywell MP918B1048 is a high-force, spring-return pneumatic damper actuator engineered for reliable damper positioning in commercial HVAC and building automation systems. Designed to deliver consistent performance across a wide range of environmental conditions, this actuator is built to handle demanding applications where dependable fail-safe operation is essential.
Key Features
- High actuator force for positive damper positioning in large or high-resistance damper assemblies
- Spring-return design provides fail-safe operation — damper returns to default position on air loss
- 3½” stroke for broad compatibility with a wide range of damper linkage configurations
- 5–10 PSI spring range for precise proportional control response
- 29 PSI maximum operating pressure for compatibility with standard pneumatic control systems
- ¼” barbed fitting for OD plastic tubing — easy, secure pneumatic line connections
- Wide humidity tolerance: 5–95% RH (non-condensing) for use in humid or variable-climate environments
- Extended operating temperature range: –40°F to 158°F (–40°C to 70°C) for indoor and outdoor installations
Specifications
- Brand: Honeywell
- Model: MP918B1048
- Actuator Type: Pneumatic, Spring Return
- Actuator Force: High
- Stroke: 3½”
- Spring Range: 5–10 PSI
- Maximum Operating Pressure: 29 PSI
- Tubing Connection: ¼” Barbed Fitting for OD Plastic Tubing
- Humidity Range: 5–95% RH
- Operating Temperature Range: –40°F to 158°F (–40°C to 70°C)
Application
The MP918B1048 is ideal for use in VAV systems, economizers, outside air dampers, and other commercial HVAC applications requiring dependable pneumatic actuation. Its spring-return mechanism ensures the damper moves to a predetermined safe position whenever pneumatic pressure is lost, making it a trusted choice for life-safety and energy management applications.
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