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Check Valves
One-Way Flow Control for Industrial Applications
Check valves, also known as non-return or one-way valves, are designed to allow flow in one direction only and prevent backflow in pipelines. At Dewater Products, we supply industrial-grade check valves suitable for water, wastewater, chemical, and process applications. Choose from reliable models like ball check valves, swing check valves, duckbill valves and dual plate check valves – all available with fast delivery across Australia.
Ball Valves
Reliable quarter-turn shut-off valves for water, gas, and industrial pipelines.
Dual Plate Check Valves
Compact and efficient non-return valves with spring-loaded plates to prevent water hammer.
Duckbill Check Valves
Rubber one-way valves ideal for flood-prone drainage systems and outfalls.
Compare Check Valve Types
| Type | Design | Backflow Protection | Debris Handling | Best Use Case |
|---|---|---|---|---|
| Swing Check Valve | Flap disc swings open/closed | Good | Fair | Clean water & general systems |
| Duckbill Check Valve | Flexible rubber sleeve | Excellent | Excellent | Stormwater, tidal, flood-prone areas |
| Ball Check Valve | Rubber ball in full-bore body | Excellent | Self-cleaning | Wastewater, pump stations |
| Dual Plate Check Valve | Two spring-loaded plates | Good | Limited | Compact pipelines & high pressures |
Where Check Valves Are Used
- Stormwater and flood control
- Wastewater treatment and sewer lines
- Potable water and clean water systems
- Pump systems to prevent reverse flow
- Industrial pipelines and process lines
Frequently Asked Questions
Can I use a check valve for backflow prevention in stormwater drains?
Yes – duckbill check valves are ideal for stormwater and tidal backflow protection.
Do check valves need maintenance?
Ball and duckbill check valves are low-maintenance and self-cleaning. Others like swing and dual plate types may require periodic inspection.
What sizes are available?
We offer check valves from 25mm to 600mm and beyond. Contact us for availability on larger sizes.
Are your valves suitable for potable water?
Yes – several models are available with WRAS-approved seals. Confirm material compatibility with our team.
Need Help Choosing a Check Valve?
We help engineers, plumbers, and contractors select the right valve for their flow system. Call 1300 271 290 or contact us online for fast assistance or to request a quote.