Honeywell MP918A1081/U Pneumatic Fail-Safe Spring Return

Product Description

The Honeywell MP918A1081/U is a pneumatic fail-safe spring return actuator designed for proportional control of dampers in HVAC systems. This actuator is suitable for medium to large-size dampers and features a rolling diaphragm for reliable performance. It includes a positive positioner with a ten psi span and an integrated five psi spring for optimized functionality.

• Max operating pressure of twenty-five psi.
• Temperature range of -20 F to +158 F.
• Includes versatile mounting hardware for easy installation.

Product Highlights

This actuator is built with a low friction shaft bearing and offers close tolerance on its operating range and stroke, ensuring high accuracy in operation.

Product Information

Standard Information

• Brand: Honeywell
• Part Number: MP918A1081/U

Technical Specifications

• Dimensions: 20.5 inches long x 8 inches high x 6.625 inches diameter
• Maximum Safe Operating Pressure: 25 psi
• Temperature Range: -20 F to 158 F (-29 C to 70 C)
• Stroke Length: 3.5 inches
• Actuator Type: Damper
• Fail Safe Mode: Spring Return
• Diaphragm Effective Area: 23.8 sq. inches