Pierburg® 7.22286.52.0 - EGR Valve

The future of the automobile hinges largely on efficient techniques for reducing emissions. This is a function that the catalytic converter cannot perform all by itself. With its acknowledged competence in every aspect of the engine and over 30 years of experience in series production, Pierburg manufactures secondary air systems, exhaust gas recirculation systems as well as exhaust flaps all designed to satisfy present and future emission requirements.

Back at the start of the 90s, Pierburg had developed a secondary air system for effective after-treatment of the exhaust gases. This was necessary in view of the growing gap between untreated emissions and stipulated limits.

The secondary air assists the catalytic converter during the engine's warm-up phase since immediately after cold start, the converter fails to achieve any purifying effect. Only at a light-off temperature in the range of 300 to 350°C does the converter come into operation.

Injecting secondary air into the exhaust gas manifold gives rise to exothermal oxidation of the unburned carbons and carbon monoxides. The heat released in the process allows the converter to reach its operating temperature more readily.

The secondary blower has a radial design and is driven by a DC motor. The engine compartment is sealed off with respect to the pump unit in order to protect the motor from the aggressive exhaust gas condensate while assuring, at the same time, low-noise operation.

With its variety of secondary air valves, pneumatically or electrically operated, with and without pressure sensor, Pierburg provides optimum systems for future applications, too.

When you need exhaust system parts you can battle the traffic and stand in line at the auto parts chain store, only to be told that what you need is out of stock and has to be ordered. And if they have the parts can you be assured of the quality? Do you recognize the name on the box? And how do you know if you're getting the best price?

You won't have those concerns with Pierburg's replacement exhaust parts. The company carries only top name products from well-known OE and aftermarket suppliers. In fact, many of manufacturers are suppliers to the vehicle manufacturers, so the parts you get from Pierburg® may be the same as the ones that came on your car or truck. Pierburg carries all the major exhaust system parts like mufflers, catalytic converters, resonators, exhaust pipes and tail pipes, but also your source for parts ignored by other on-line vendors, like gaskets, clamps, and hangers. And if you'd like more performance and exhaust rumble than a stock system can provide, Pierburg carries a full line of performance exhaust systems that will deliver more power and whatever sound level you desire.

And the best part is you can have these top quality parts, at the best prices, with just a few clicks of the mouse or a call to one of knowledgeable sales associates. No traffic, no standing in line, order from the comfort of your home or office. With Piernurg's exhaust parts you can schedule the repair when it's convenient for you.