Wabco 4721800020 3/2 Way Solenoid Valve

Description

The Wabco 4721800020 is a 3/2 Way Solenoid Valve crucial for controlling air flow within air brake systems, commonly used in commercial vehicles and heavy machinery. This valve directs air to actuate brakes, shift gears, or operate other pneumatic components. It features a normally closed design, activating when electrically energized. The valve has dimensions of 40 x 68 x 123 mm and operates within a temperature range of -40°C to +80°C, ensuring reliable performance in diverse conditions. Its robust construction, with protection class IP 6K6K / IP 6K9K, and OE specification deliver durability and consistent operation, contributing to enhanced safety and system reliability.

Key Features & Benefits

Basically, this valve controls airflow in your air brake system. The “3/2 way” part just tells you how it controls it. It has three ports – one for pressure in, one for pressure out, and one that vents to the atmosphere. It switches between two positions – either allowing air to flow between the inlet and outlet, or blocking the flow and venting the pressure. It’s electrically operated, so when it gets a signal from the system, it either opens or closes that airflow. You’ll find these used in a lot of different parts of an air brake system. Things like controlling the operation of air brakes themselves, the parking brake, even the air suspension on some vehicles. It’s a pretty common component for directing air where it needs to go to activate those systems. Think of it like a gatekeeper for the air.

Symptoms, Risks & Replacements

Well, if this valve fails, whatever system it controls won't work right. You'll notice if it's related to your brakes – you might have trouble applying the parking brake, or even have issues with your service brakes holding properly. It’s a safety – critical part, because it directly impacts how well your vehicle can stop. It acts like a shield, preventing air from going where it shouldn't, and letting it through when it needs to. We carry a good selection of these, and you can often find a great price on a replacement at Fixparts Online if you’re looking. It's definitely something you want to keep in good working order.

Warranty Information

Wabco 3/2 Way Solenoid Valve (MPN 4721800020) comes with a 1-year warranty.