How Do Power Steering Hoses Work?

Pretty much all systems in a car are powered by a liquid or vapour of some sort and the main method of transporting those liquids and vapours is via a series of hoses. We’re guessing this is something that you already knew, but what you probably didn’t know is that each hose is designed for one single purpose.

A low-pressure fuel hose is constructed in such a way that it is perfect for low-pressure fuel. A high-pressure fuel hose is designed for high-pressure fuel. A coolant hose should never be swapped out for a vacuum hose, an AC hose should never be replaced with a brake. They are all intended for one single purpose in mind and they should only ever be used as such.

Even hoses that fall under the same category are designed with a different purpose in mind and should not be used interchangeably. Take for example brake and power steering hoses. Although they are both intended for use in a hydraulic system and are built to withstand high-pressure, they are constructed in slightly different ways. A power steering hose is not suitable as a brake hose and a brake hose is not suitable for power steering. Here we explore the reasons why; first taking a look at how power steering works and later outlining how a power steering hose makes it possible.

A Simple Guide to Power Steering

Most cars are fitted with power steering. Of course, thanks to advancements in technology, electric steering is becoming more and more popular; however, hydraulic systems still remain the most prevalent option. It may seem like a highly complex process, but essentially, it just relies on the combined functioning of a number of mechanical parts.

No.1: The Rotary Vane  Pump

The fluid that is used in power steering is stored in a reservoir and pressurised by a rotary vane pump. This pump is driven by the car’s engine via a belt and pulley. Quite simply, it takes the fluid from the reservoir, pressurises it, and subsequently supplies it to the power steering system.

No. 2: The Rack and Pinion

A rack is a linear gear with straight cut teeth and a pinion is a round gear which is set at an angle over the top. When the steering wheel is moved to the left or right, the pinion spins and drags the rack along – moving it to the left or right dependent upon the direction of the original turn.

No. 2 The Power Steering Hoses

The piston is surrounded by a cylinder and this cylinder is supplied by two power steering hoses. When you turn the steering wheel to the left or right, high-pressure fluid is fed into the left or right-hand side of the cylinder. This pressure pushes the piston and moves it in the opposite direction, whilst at the same time, low-pressure fluid is released from the opposite side.

Essentially, this is how power steering works. High-pressure and low-pressure fluid moves the piston along the rack and, as a result, the car can be turned, controlled, and manoeuvred with very little effort on your behalf. Power steering is arguably one of the most important systems of a vehicle. The steering wheel requires constant hands-on control; quite literally, it is the only part of the car that you have contact with, 100% of the time. It is therefore vitally important that all mechanical parts in a power steering system are working correctly and, if a power steering hose needs to be replaced, you should make sure to purchase the right type for the job.

The Perfect Power Steering Hoses at BrakeQuip

As you may have guessed, a power steering system requires two different types of power steering hose – one that is suitable for carrying high-pressure fluid from the pump to the rack and piston and one that is suitable for releasing low-pressure fluid and taking it back to the pump or reservoir. Dependent upon on its intended purpose within the hydraulic system, power steering hoses are constructed in a slightly different way and they have slightly different properties.

High-pressure power steering hoses are typically constructed from a reinforced synthetic compound, with braided steel between the layers and double-flared compression fittings. This makes them very tough, inflexible, and difficult to bend. Low-pressure power steering hoses are very similar in their construction; however, they are not necessarily built to withstand high-pressure fluid and they may not necessarily have compression fittings for this reason.

If you suspect that your power steering line may be broken or if you wouldlike to replace and upgrade the power steering hoses that you currently have, BrakeQuip is the perfect place to start. They are a one-stop-shop, one of the UK’s leading suppliers of motorcycle and automotive hoses, and they offer a fantastic range of high-performance and durable power steering hoses. Boasting high-temperature ratings and compatible with the vast majority of power steering oils, these power steering hoses are some of the best on the market – designed with their specific purpose in mind.

Contact BrakeQuip Today

For more information on how power steering works or if you would like to find out more about the power steering hoses currently available at BrakeQuip, head over to their website and take a look at what they have to offer. Alternatively, you could give them a call on 01257 220010 or send an enquiry using the online contact form. Their friendly team of staff are dedicated to customer service and they will do everything they can to provide the best power steering hoses at the lowest price!

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