MAX AIR [country] HD Series Actuators

Max-Air Technology Heavy Duty Series (HD) Scotch Yoke Actuators are available in two distinct configurations: SHD (symmetric) and CHD (canted) heavy duty selectable torque profiles are designed to perform in the most demanding applications based on valve requirement. Engineered to pneumatically automate all types of quarter turn valves (ball, butterfly, plug, damper), where reliably high torque outputs are necessary. Double Acting 13,367 to 2,738,990 in-lbs, Spring Return 5,328 to 1,320,215 in-lbs. Please refer to torque charts for specific details.

HD SERIES SCOTCH YOKE ACTUATORS
SHD (symmetric type) and CHD (canted type) heavy duty scotch yoke actuators are designed to perform in the most demanding
applications. They are engineered to automate all types of quarter turn valves (ball, butterfly, plug and damper) with multiple
torque profiles available in order to provide a “best fit” for every situation. Torque range is up to 2,700,000 in-lbs double acting, and
1,300,000 Spring Return.

Features:
• Symmetric and Canted Yoke options
• Slide Block Technology extends service life
• Hard chrome plated wear surfaces
• Travel stops with ±6° adjustment in both directions
• Three layer epoxy coating for general corrosion resistance
• Direct ISO 5211 standard valve mounting
• Direct NAMUR top accessory mounting
• Modular design w/ self-contained spring modules
Configurations:
• Double-Acting (Air-to-Air) operation
• Spring-Return (Air-to-Spring) operation, Fail-Close or Fail-Open
• Standard Rotation (CCW open) or Reverse Rotation (CW open)
Options:
• Manual override handpump or declutch gear operator
• Heavy duty polyamide epoxy coating
• Low temp or high temp seals
• High pressure hydraulic cylinder configurations

Order Examples: