Advance Air Pressure Protect Valve

Advance Air Pressure Protect Valve

This air pressure protection valve is a critical safety component for the air brake system on Terex Advance front discharge mixers. It functions by automatically closing when it detects a drop in air pressure in an auxiliary circuit, preventing a failure in an accessory (like air suspension or horns) from draining the main reservoirs and disabling the brakes. This valve ensures that the primary braking system pressure is maintained. It is a direct replacement for a failed or leaking valve, which is essential for maintaining vehicle safety and operational integrity.

Key Features

• Protects primary air reservoirs from pressure loss in auxiliary air systems.
• Automatically closes at a preset pressure to ensure brake system integrity.
• Designed for use in heavy-duty truck and commercial vehicle compressed air systems.
• Can be used to delay filling of auxiliary reservoirs to ensure quick buildup of brake system pressure.

Fits These Mixers

Terex, Terex Advance, Oshkosh. Fits Terex Advance and Oshkosh front discharge mixers utilizing a Bendix-style PR-4 pressure protection valve in the air brake system.

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.