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I can't stress enough the importance of knowing what is required of the ball valve before selecting the perfect one. Ensuring the ball valve will not break in applications where there is high pressure or gas is so important. Understanding what the markings on the ball valve mean, is one of the first steps. They help determine if the valve is appropriate for the application and provide peace of mind with backing by 3rd party associations. A little upfront research to ensure application requirements are met can save time and money down the road.

Air gap backflow prevention devices are manufactured using various materials and can have different finishes. They are usually inexpensive and work by separating the hoses carrying fresh water and dirty water with the help of an air gap.

All backflow prevention devices are designed to prevent contaminated water from flowing back into the potable water system. However, how they accomplish this can vary depending on the type of device.

This backflow prevention device can prevent water from flowing back when there is reduced pressure. Vacuum breakers must be installed at least six inches above the ground for optimal functioning. However, they cannot block contaminants in the air from entering the water and are ineffective in plumbing systems with consistently high pressure.

While backflow preventers are critical for protecting potable water supplies, they must be installed correctly by a licensed plumber. Improper installation can create cross-connection hazards. Also, most backflow preventers require annual testing to verify their function.

Additionally, in these types of backflow prevention assemblies, it is possible to close one backflow preventer valve to reduce the pressure differential and create a more effective seal. And the working of this system can be tested with the help of tiny ball valves or test cocks.

Learn how to identify and prevent pipe corrosion to avoid leaks, rust, and contamination in your plumbing system. This guide covers causes of corrosion, impacts on water supply, prevention strategies, and tips for implementing an effective corrosion prevention plan.

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CWP stands for Cold Working Pressure and is an indication of the pressure rating for valves at a temperature up to 100°F. This is becoming a more common rating, as the WOG rating has a more complicated description.

Have you been experiencing problems with your tap water recently? Chances are that the water travelling to your main may have become contaminated with pollutants like non-potable water or human waste. In such a situation, it is best to hire a plumber and install a backflow preventer.

WP Plumbing is a leading Melbourne plumber specialising in blocked drains, hot water systems and emergency plumbing solutions across Victoria.

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Back siphonage occurs due to negative pressure in the water supply, which can cause dirty water and its contaminants to be sucked back into the supply system. Some situations that can cause this include breaks in the pipeline, use of undersized piping and withdrawal of water quickly.

There are different types of backflow preventers. One common type is the reduced pressure zone (RPZ) valve. An RPZ has two independent check valves with a pressure differential relief valve between them. If either check valve leaks, the relief valve discharges water into the atmosphere, preventing it from flowing back into the supply.

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WOG stands for Water, Oil and Gas and is the non-shock pressure rating for valves at an ambient temperature. Water is straightforward but the oil and gas parts are a little more complicated. Oil refers to a free-flowing liquid that is thicker than water and has lubricating characteristics. Gas is a vaporized liquid, but this does not cover combustible gases. There are more specific approvals required for these applications.

For more information on these and other certifications visit our Why You Should Pay More Attention to Plumbing Product Certifications blog.

Most buildings in a city receive water from the main water supply line, which flows only in one direction. However, the water flow can be reversed in certain situations, such as during pressure changes in pipes.

Since no pressure pushes the water forward in such situations, it flows back to the city water supply. Dealing with problems caused by backflow is quite tricky and, not to deny, expensive.

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WSP stands for Working Steam Pressure and defines the pressure of steam in a system that a ball valve can be used in. The industry uses WSP for bronze ball valves because, as the temperature rises, the strength of the material decreases.

Your backflow preventer is important to protect your water supply from contamination. It works by preventing the reverse flow of water from a contaminated source into the clean water supply. Find out more here!

If the pressure on the side of your home exceeds the pressure at the city water supply, the check valves close, ensuring complete backflow prevention systems. The only drawback of this backflow prevention system is that both valves can always fail. Or debris in the water can prevent them from closing completely.

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The biggest advantage of installing a backflow preventer is that it will prevent backflow into your home’s water supply and stop it from getting contaminated. Additionally, debris that may be present in contaminated water can damage your pipes, so this system will also keep the plumbing system protected.

That’s why we’ve decided to share this brief guide, explaining everything you need to know about backflow preventer systems. No special browser or internet device is required—just a desire to learn about this critical plumbing safety device.

Now that you know how a backflow prevention device works, installing one in your home is time-consuming. The best way to do so is to hire a licensed plumber. Licensed plumbers, like our team at WP Plumbing, possess the necessary expertise, tools, and skills and can install such devices quickly and efficiently. Give us a call if you need a plumber in Melbourne!

That is why it is better to prevent them from occurring in the first place, which is where a backflow preventer comes in.

When this happens, freshwater is contaminated with wastewater that contains bacteria, chemicals, and other harmful substances. This can often occur when a fire hydrant is opened, resulting in a loss of water pressure or a break in water mains.

You may have heard of the term’ backflow preventers’ but may not know their function and how they operate. Essentially, a backflow preventer is a device that ensures water flows only in one direction through a pipe. It prevents contaminated water or other substances from flowing backwards into the clean water supply.

Not all valves are approved to be used in combustible gas applications. Ones that are, will have specific markings depending identifying where they can be used.

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Both WOG and CWP refer to the pressure rating of the valve. They are found on the valve body as a number with either WOG or CWP under it. The number represents the pressure rating, ie a 600 with CWP under it would mean the valve is rated to 600 PSI CWP.

Atmospheric vacuum breakers (AVB) are usually installed in the spigot, hose, and faucet systems. They have a check valve connected to an air vent that opens when the system loses pressure. Upon opening, this valve allows air into the vacuum, sealing off the main water supply.

Let’s begin, then! By the end of this article, you’ll understand what causes backflow, the different types of preventers available, and the importance of proper installation and maintenance. Protecting your drinking water is critical for health and safety.

You may have noticed that brass and stainless steel ball valves have markings on them. These markings aren’t random, they help show what standards ball valves have been tested to and what applications they can be used in. In this blog we will go over the different markings that you may come across when looking at metal ball valves.

Get our expert plumbers best tips of preventing backflow issues in your home. Find out the common causes of backflow problems, backflow testing methods and the types of devices you can install!

This occurs when the pressure at your house is much stronger than the water supply. Because of this, harmful contaminants present in water can enter the water supply and reach other areas, such as the fire protection system or irrigation system.

Backflow prevention devices installed on a fire protection system usually have two or one-way check valves. These are installed serially to prevent used water from backing into the potable water supply.

600 WOGmeaning

Ever wonder how your toilet actually works? This article dives into the basics of how toilets flush and what happens when you push that lever.

However, all three types of backflow preventers work to prevent the main water supply from becoming contaminated. While businesses are required by law to install such devices, local legislation decides which homes require them.

The two valves are the most crucial element of the double-check assembly, first used in the 1950s. Even if one valve fails or stops working, the other will ensure your property’s drinking water supply remains uncontaminated.

Additionally, they can help you select the most suitable backflow prevention that meets the area’s legal requirements by inspecting the site. Remember to get your backflow preventer tested annually after installing it to ensure it functions properly.

A backflow prevention device is installed on pipes through which water travels only in one direction. Its function is to ensure that water does not flow backward. Several types of backflow preventers are available for various purposes. The three most common types include check valves, vacuum cleaners, and air gaps.

Also, as mentioned before, your area’s local water authority may require you to install backflow prevention devices. That is why many new homes, especially those with sprinklers, come equipped with such devices.

Dual inlet air gap devices are also available, ideal for connecting two dishwashers or a filtration system to a dishwasher. These are best for under-sink reverse osmosis systems and can prevent contaminated water from flooding your dishwasher.

Air gaps are most commonly used in sinks. They prevent drinking water from getting contaminated by debris. They are best suited for homes where appliances like dishwashers are used and can help them last longer. This type of backflow prevention device creates an air gap between the dishwasher’s flood level and the water outlet.