Water valves are what control the flow and pressure of the water through the pipes. There are a variety of different valves that can be found in your everyday home and each plays a different role and have their own pros and cons. Today, we’re going to be looking at what some of the common ones that can be found in your home are as well as what they do according to our South Yarra plumber.

Gate valve

This is considered to be a very common valve and – as the name suggests – uses an internal gate to control the water flow. That being said, you shouldn’t actually use this type of valve to control water flow because it is designed to either be completely shut or open all the way – making it not very ideal for controlling water flow. If you do attempt to use them to control water flow, then they could wear out easily. Gate valves are most commonly used as shutoff valves at mains and water supply line branches.


Ball valve

These types of valves are also commonly used as main shutoff valves as well as branch supply lines. The feature that makes a ball valve unique is that it contains a ball with a hole in the middle of them. This type of valve is operated by a lever which turns the ball to either stop water or let it flow through.

Similarly to the gate valve, they’re designed to be either on or off – not partially open. A useful characteristic of the ball valve is that it’s easy to tell when it’s open or closed. When the lever is parallel to the pipe then the valve is open. When it is perpendicular then the valve is closed.


Globe valve

Globe valves get their name from the globe like appearance that the valve possesses. It is a linear motion valve and contains a disk – which acts as a stopper – that can be removed completely to allow constant flow or inserted all the way using the valve knob to stop the flow.

These are actually used to regulate the flow of water and are commonly used when the flow needs to be adjusted or regulated on a regular basis – this is the other feature in which the disk is used. Globe valves are used for outdoor faucets generally because they’re so good at regulating water flow.


Check valve

Check valves only allow the water to flow in one direction. It contains an inlet and an outlet for the water to enter and exit from. These types of valves are great at stopping gravity from drawing water back out of a water tank if the pressure is turned off – as well as allowing the pressurised water into the tank in the first place. It is because of this capability that check valves are typically used in water tanks and similar water storage units.


Pressure-reducing valve

These valves are designed and installed with the intent to reduce the water pressure to the required levels. These valves are not to be used to turn the water flow on or off – they’re strictly for reducing and regulating the water pressure. The water pressure is reduced using a spring and diaphragm that is tweaked to a particular limit – depending on water supply’s pressure. This is an important type of valve as high-water pressure can be dangerous to household plumbing if left unchecked.


Fixture shutoff valve

These valves are actually quite small and are used to control the water flow to individual fixtures such as taps and toilets. Not to be confused with the actual tap controls that you’d use to turn your sink on and off – these shutoff valves are used to turn off the water flow to that particular plumbing fixture if work needs to be done on it. These are handy as they allow work to be done on the fixture without shutting off the primary water valve and thus cutting off the water flow to the entire house.


Are you in need of a South Yarra plumber?

Whether you need some maintenance work done by a South Yarra plumber or need some new valves installed – JPG Plumbing is the perfect company for you. We offer a variety of services that are carried out by our highly trained and experienced contractors. Our South Yarra plumber will work around your schedule and work to meet the deadlines.

If you’re in need of a South Yarra plumber or would just like to know more about the services we offer, then please give us a call on 0400 978 442 or fill out the form on our website here.