Advance Air Valve Relay

Advance Air Valve Relay

This is a MAC 400 Series remote air (air-piloted) relay valve designed for the pneumatic control systems of Terex Advance front discharge mixers. Unlike a solenoid valve, this component uses a low-volume air signal to shift its internal spool, which in turn directs high-volume airflow to operate larger components like air cylinders for chute or hopper operations. Its non-electric, air-piloted design makes it a robust and reliable choice for the demanding and harsh environment of concrete mixers, where it serves as a critical replacement part for maintaining the vehicle's pneumatic functions.

Key Features

• Air-piloted (remote air) operation, requires no electricity
• Functions as a pneumatic relay, using a small air signal to control a large air flow
• Balanced, bonded spool design for high flow and consistent response times
• Designed for use in industrial and mobile pneumatic systems
• Durable construction suitable for the harsh environment of concrete mixers

Fits These Mixers

Terex, Terex Advance, Oshkosh. Fits the air control systems on various Terex Advance front discharge concrete mixers. It is used to operate air-powered functions where a non-electric relay valve is specified.

All measurements ± standard manufacturing tolerance.

Product descriptions are drafted with automated tools and reviewed as time allows. While we work to keep them accurate, specifications and fitment should be confirmed with a Customer Service specialist at 800-745-3414 before purchase. Found an error? Let us know and we’ll fix it.