Premium-Quality Check Valves

Check valves are non-return valves that allow the flow of fluid or gas in a certain direction whilst preventing reverse flow in the opposite direction. They operate automatically without any external control, opening when fluid flows in the correct direction and closing when flow attempts to reverse. This is an essential requirement in water meters and countless other applications, allowing the delivery of fresh water to households whilst preventing reverse flow and potential contamination of the potable water mains supply. Check valves are critical components installed to prevent backflow that can cause contamination, whilst doing so in a way that prevents water hammer that can result in damage to equipment. Their simple yet effective design makes them indispensable in maintaining system integrity across numerous industries.

There are several types of check valves, each with varying characteristics suited to different applications. Swing check valves are the most common type, featuring a disc mounted on a shaft designed to permit forward flow but, when flow reverses, the disc swings back onto a seat and blocks the flow. Ball check valves have a ball that moves up to allow liquid to flow and then down onto a seat to prevent reverse flow. Tilting disc check valves have a double-flanged body with a disc held in place by a shaft; the disc opens at low flow rates but closes due to gravity when flow reverses. Slanted seat versions are available that are resistant to water hammer. Gulf Rubber manufactures a range of check valves and can design bespoke versions specific to your requirements, whether single or dual check valve configurations.

Check valves are essential components across many industries that pump fluids. Primary applications include water and gas meters for accurate measurement and contamination prevention, tapware and valves in plumbing systems, solenoid valves for automated control, pumps to prevent backflow damage, irrigation systems for consistent water delivery, pressure relief and wastewater systems for safe operation, water supply and distribution networks, wastewater treatment facilities, oil refineries for process control, chemical processing plants, HVAC systems for large buildings where coolant is pumped to high floors, and numerous industrial processes requiring directional flow control. With over 40 years of experience, Gulf Rubber supplies check valves for highly technical and critical OEM applications across automotive, mining, construction, water, and other industries.

When choosing the right check valve for your application, consider several important factors.

First, the type of fluid being controlled, particularly whether solids are present (such as in sewage treatment), which some check valves cannot handle effectively.

Second, the speed of liquid flow, since fast opening and closing of the check valve can cause surges.

Third, head loss that can occur due to elevation differences and the frictional resistance of pipes.

Fourth, the characteristics of the valve, particularly its speed of closure that can prevent slamming leading to system pressure surges.

Fifth, cost of ownership that should account for all costs including maintenance and energy use over the life of the check valve, rather than simply its purchase price.

Gulf Rubber’s engineering team can help you evaluate these factors and select or design the optimal check valve for your specific requirements.

Absolutely. Gulf Rubber manufactures a range of standard check valves and can design bespoke versions that will be perfect for your particular application. The many variables we can customise include outside diameter (typically 8mm to 50mm), length, material choice, opening pressure, whether it’s a single or dual check valve configuration, and options such as snap-fit installation. These factors are carefully considered during the design process, taking into account the housing, application specifics, and operational conditions. Our engineers, chemists, and technologists work tirelessly to deliver solutions that exceed your expectations. Whether you need standard check valves or completely custom designs, we can supply valves that stop liquid flows, prevent harmful backflows, and reduce slamming and water hammer that can cause damage.

Gulf Rubber check valves meet the highest industry standards and hold numerous important certifications. Our products are certified to AS4020:2018 (the Australian standard for products in contact with drinking water) and AS2845.1 (water supply check valves), ensuring safety and compliance for potable water applications. We also hold international certifications, including:

1. WRAS approval (Water Regulations Advisory Scheme, UK),
2. NSF certification (National Sanitation Foundation, USA),
3. KTW approval (Germany), and
4. ACS certification (France).

All Gulf factories worldwide meet ISO 9001 or IATF 16949 quality standards. Gulf Rubber, as a supplier of check valves, is experienced in meeting and achieving required industry certifications. Our commitment to these standards ensures that our check valves are safe, reliable, and compliant with regulations globally.

Gulf Rubber’s goal is to ensure you never experience production downtime, expensive repairs, or frustrating warranty claims. All our check valves undergo 100% testing to guarantee performance and reliability before delivery. Our products are manufactured to precise specifications with tight tolerances, and all Gulf factories worldwide, as well as all third-party suppliers, meet ISO 9001 or IATF 16949 quality standards. We maintain rigorous quality control systems throughout the manufacturing process. Our check valves are designed for low headloss, ease of insertion, and long-term reliability. With a combination of our industry knowledge, high-quality manufacturing, extensive quality control, and attention to detail, you’ll gain full control of your fluid flows. When you partner with Gulf Rubber, you have complete peace of mind knowing you’ll always receive the highest quality components.

Water hammer occurs when a liquid stops being pumped up a pipe, causing it to fall back so the check valve stops the flow. If this happens instantly, the resulting surge causes loud noises as the pipe stretches and can lead to considerable damage to equipment and infrastructure. Properly selected check valves prevent water hammer by controlling the speed of closure, allowing gradual deceleration of the liquid flow rather than an abrupt stop. Certain types of check valves, such as tilting disc check valves with slanted seats, are specifically designed to be resistant to water hammer. Choosing correctly from an Australian check valve supplier such as Gulf Rubber means you can avoid these problems and control liquid flows safely. Our engineering team considers all operational conditions during the design process to ensure optimal valve performance and system protection.

Gulf Rubber is based in south-west Sydney at 12 Green Street, Revesby NSW 2212, and we serve clients across Australia and internationally throughout the Asia-Pacific region. Since our founding in 1980, we’ve built strong partnerships with industry leaders. Our key clients include RWC (Reliance Worldwide Corporation), Aliaxis, DuPont, BMW, and Mercedes-Benz, amongst many others across automotive, mining, construction, water, and various other industries. We manufacture and supply check valves in Melbourne, Sydney, Brisbane, and throughout Australia. We work with organisations ranging from small businesses to global corporations, providing check valve solutions for both standard applications and highly technical, critical OEM requirements. Our reputation as a trusted check valve manufacturer and supplier has been built through over 40 years of delivering innovative solutions whilst maintaining the highest quality standards.

Getting started with Gulf Rubber is straightforward. You can contact us by filling in our online enquiry form, providing details about your requirements and how we can reach you. Whether you need a quote for standard check valves or are looking to develop a custom solution, we’re here to help. Let us know your requirements, including specifications if known, or describe the application and challenges you’re facing. Our team will get back to you promptly to discuss your needs and suggest appropriate solutions.

You can also call us directly on +61 2 8723 6100 during business hours (Monday to Friday, 9am to 5pm) to speak with our experienced team. We understand that production cannot be held up for lack of check valves, so business must go on in a professional manner, and we want to help you achieve that with quick and timely deliveries of the best check valves.