Wabco 9253771100 Double Diaphragm Tristop 30/30

Description

The Wabco Double Diaphragm Tristop 30/30 is a high-performance brake actuator designed for use in air brake systems. This actuator converts air pressure into a mechanical force to apply the brakes on commercial vehicles and trailers. It’s a critical component in ensuring reliable and efficient braking performance. With its robust design and precise engineering, the Tristop 30/30 delivers consistent output force and smooth operation, contributing to enhanced safety and reduced maintenance costs. This unit measures 210 x 230 x 670 mm and is identified by MPN 9253771100. Key parameters include a stroke of 75/75 mm, maximum operating pressure of 10.2/8.5 bar, and an output force of 8000 N. It features a cam-operated type of operation and is specified to OE standards.

Key Features & Benefits

This part is basically the heart of your spring brake actuator. It takes air pressure and translates that into mechanical force to release your spring brakes. The “double diaphragm” design means it has two flexible membranes working together – that gives you a stronger, more consistent push. The “Tristop 30/30” part refers to how much force it generates – 30 square inches of area with a 30 psi air supply. It’s got three distinct stages of release, offering really precise control. Think of your spring brakes as always on – they’re a safety feature. This actuator is what pushes against those springs to let your wheels roll freely when you want to move. It's part of the air brake system, so it’s most common on heavier vehicles – trucks, buses, trailers, that sort of thing. When you press the brake pedal, the air system sends pressure to this diaphragm, which then pushes the brakes off. When air pressure drops, like when the engine’s off, the springs automatically apply the brakes.

Symptoms, Risks & Replacements

It's a critical safety component. If this diaphragm fails, your brakes could stay engaged, or worse, not release properly. You’ll notice if it's going bad – things like dragging brakes, longer stopping distances, or even the vehicle not moving when you hit the release. It acts like a shield against the constant tension of those spring brakes, and it needs to be reliable. You can find these, and a lot of other air brake parts, over at Fixparts Online if you're looking. It’s something you really don’t want to mess around with, so it's best to replace it if you suspect an issue.

Warranty Information

Wabco Double Diaphragm Tristop 30/30 (MPN 9253771100) comes with a 1-year warranty.