Check Valves

Overview

Check valves are non-return valves that allow the flow of fluid or gas in a certain direction but prevent reverse-flow in the opposite direction.

This is an essential requirement in water meters, allowing delivery of fresh water to households whilst preventing reverse-flow and potential contamination of the potable water mains supply.

Gulf manufactures a range of check valves and can design a bespoke new part specific to your requirement.

The many variables possible include outside diameter (typically 8mm to 50mm), length, material choice, opening pressure, whether a single or dual check valve and options such as snap fit. These factors are considered during the design process, taking into account the housing, application and operational conditions.

Gulf is experienced in meeting and achieving required industry certifications, such as AS4020:2018 and AS2845.1. Read More

Control Liquid Flow with a Check Valve Manufacturer in Australia

Check valves are essential components for many industries that pump fluids. These can include water supply, waste water treatment, oil refineries, processing plants and HVAC systems for large buildings where coolant is pumped to high floors.

Check valves are installed to prevent backflow that can cause contamination but to do so in a way that prevents water hammer that can result in damage to equipment. Water hammer occurs when a liquid stops being pumped up a pipe, causing it to fall back so the check valve stops the flow instantly. The resulting surge causes loud noises as the pipe stretches and can lead to considerable damage. Choosing correctly from an Australian check valve supplier such as Gulf Rubber means you can avoid these problems and control liquid flows.

Making Correct Choices from Check Valve Suppliers

Check valves are of different types with varying characteristics:

  • Swing check valves are the most common type and have a disc mounted on a shaft. This is designed to permit forward flow but, when the 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 the flow reverses. Slanted seat versions are available that are resistant to water hammer.

When choosing the type of valve you need, consider the following:

  • the type of fluid being controlled; in particular, consider whether solids are present, such as in sewage treatment, which some check valves can’t handle
  • the speed of liquid flow, since fast opening and closing of the check valve can cause surges
  • head loss that can occur due to elevation differences and the frictional resistance of pipes
  • characteristics of the valve, particularly its speed of closure that can prevent slamming that leads to system pressure surges
  • cost of ownership that should take into account all costs (including maintenance and energy use) over the life of the check valve rather than simply its purchase price.

Check Valves that Work Well and Reliably

Price should never be the most important consideration when choosing check valves. As a leading check valve manufacturer, we do endeavour to supply parts that are competitively priced and cost-effective. But the main aim is to provide you with something that works effectively and reliably for a long time so you have no concerns about its performance including our rubber o-rings supply and automotive engineering services.

We can supply standard check valves or design and manufacture bespoke versions that will be perfect for your particular application. Either way, we can supply valves that will stop liquid flows, prevent harmful backflows and reduce slamming and water hammer that can cause damage. Get in touch to let us know your requirements and we’ll provide exactly the check valves you need. 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. Read Less

Benefits

Potable Water Certifications

Functional Certifications

100% Testing

Fully Customisable

Low Headloss

Ease of Insertion

Applications

  • Water and Gas meters
  • Tapware and valves
  • Solenoid valves
  • Pumps
  • Irrigation
  • Pressure relief and waste-water systems

Key Partners

International Certifications

Quality Assurance

Gulf’s team of engineers ensure all factories around the world meet quality standards required for ISO 9001 certifications. All products go through rigorous analysis and testing on a range of metrics, including tensile and tear strength, stress relaxation, and compound rheology. Our stringent process controls use tools such as Poka-Yoke / Error-Proofing, Statistical Process Control (SPC), Process Failure Mode Effects Analysis (PFMEA) and automated inspection tools.

Other analytical tools include Design of Experiments (DoE), Finite Element Analysis (FEA), Failure Modes and Effects Analysis (FMEA), Gauge R&R and 8D Problem Solving.

Custom Design Capabilities

Custom Design Capability

At Gulf, we thrive on the opportunity to innovate. If you need a custom product or solution, then our trusted engineers, chemists, and technologists will work tirelessly to deliver above and beyond your expectations. Whatever your specifications or requirements, you can rest easy knowing that you’ve got the strategic partner who can solve the problem.

Custom Design Capability

Using DFMA (design for manufacture and assembly), we can help duplicate parts, improve existing parts, or develop new ones. In partnership with you, products are developed, tested, and delivered to streamline production and simplify your supply chain, often resulting in lower cost products and quicker delivery time.

Book a Consultation

Schedule a consultation and share your product challenges and objectives. Our technical team will help you understand and discuss our design and development process to deliver in full, on time, and within specification.