What Does a Check Valve Look Like: Fact Sheet

Check valves are essential components of irrigationsystems, ensuring the flow of water in one direction while preventing backflow.

In Melbourne, where plenty of residential and commercial settings rely on irrigation, you’ll come across check valves in a wide range of applications.

From residential homes to commercial buildings and industrial facilities, these irrigation valves are quietly working behind the scenes to keep irrigated water flowing smoothly and protect against potential contamination or damage.

Let’s take a closer look at what these valves look like and their importance in the plumbing landscape of Melbourne.

If you want to learn more about irrigation, check out our other resources:

• How much does irrigation cost?
• How to choose the best irrigation supplier
• Irrigation vs hand watering services
• Pros and cons of irrigation
• How to plan and install an irrigation system
• What are the common types of irrigation

Swing Check Valve 

This check valve consists of a hinged disc that swings open to allow fluid flow in one direction and closes to prevent backflow. They are typically made of durable materials such as brass, stainless steel, or PVC, ensuring longevity and resistance to corrosion.

Ball check valve

As the name suggests, this valve contains a ball that acts as the disc. When fluid flows in the correct direction, the ball is pushed away, allowing unrestricted flow. When the fluid tries to flow back, the ball is forced into the seat, blocking the reverse flow. They are commonly used in irrigation systems, particularly in applications that require quick response times and low maintenance.

Learn More:

• Brass Ball Valves
• Brass Gate Valves
• Brass Swing Valves
• PVC Ball Valves
• Poly Ball Valves

Other types

Other types include lift check valves, piston check valves, and diaphragm check valves. Lift check valves use a disc that moves vertically to regulate flow, while piston check valves utilise a piston to control fluid movement. Diaphragm check valves, on the other hand, use a flexible diaphragm to allow or prevent the flow of fluids.

When it comes to appearance, check valves are typically cylindrical or spherical in shape. Most feature threaded or flanged connections, allowing for easy installation into the plumbing system. Depending on the application and location, these valves may vary in size from small, compact valves for residential use to larger ones for industrial or commercial settings.

In Melbourne, you can find check valves in various places where backflow prevention is crucial. They are commonly used in residential plumbing systems to prevent wastewater from flowing back into clean water supplies. Outside of irrigation, you’ll find them in toilets, sinks, and washing machines, ensuring that water only flows in one direction.

Importance in Irrigation Systems

Check valves play a vital role in irrigation systems across Melbourne. They help maintain the integrity of the water supply by preventing contaminated water from flowing back into the main system. These valves can be found in sprinkler systems, garden hoses, and other irrigation equipment, safeguarding the quality of water used for gardening and other outdoor purposes.

Industrial and Commercial Applications

In industrial settings, check valves are indispensable for maintaining safety and preventing damage to equipment. They are found in pipelines, pumps, and compressors, ensuring the proper flow of fluids and protecting machinery from potential backflow or pressure surges.

In the commercial sector, they are commonly used in restaurants, hotels, and other establishments that require a reliable plumbing system. For example, in Melbourne’s vibrant food scene, they are crucial for preventing cross-contamination between potable water and potentially hazardous substances. These valves can be found in dishwashers, ice machines, and other kitchen appliances, safeguarding the health and well-being of patrons.

Recreational Use and Regulations

Check valves are also employed in swimming pools and spas to maintain proper circulation and prevent water from flowing back into the filtration system. In Melbourne’s warm climate, where swimming pools are a popular feature in many homes, they play a vital role in ensuring clean and safe water for recreational use.

The installation is guided by plumbing regulations and industry standards to ensure the optimal performance of plumbing systems. Plumbers and building codes require the proper installation to prevent backflow and protect the integrity of the water supply. Regular maintenance and inspections are also recommended to ensure that they are functioning correctly and to address any potential issues promptly.

Check valves come in various shapes, sizes, and designs, but they all serve the critical function of preventing backflow and ensuring fluid flows in the desired direction.

Whether it’s a swing check valve, ball check valve, or any other specialised type, these valves are essential components of plumbing systems throughout Melbourne. With their diverse applications and reliable performance, they play a crucial role in maintaining the efficiency, safety, and functionality of plumbing systems in homes, businesses, and industries across the city

At Malvern Irrigation, we take the guesswork out of how to plan and install an irrigation system by providing expert consultation, design, and installation services.

With over 50 combined years of industry experience, we’re ready and able to help consult on your new or existing irrigation system.

Call us on 03 9576 2344, shop online or request a free quote online today.