Check Valves (non-return valves)

22 products

Check valves, also known as non-return valves, ensure that fluid flows in only one direction.

By preventing backflow, check valves protect pumps, pipes, and other valves from damage caused by reverse pressure.

Our range of check valves are available in a number of sizes (¼" to 12") and materials to suit a vast range of applications.

Swing Check: Suitable for high-flow applications, offering minimal pressure drop.
Ball Check: Durable and efficient, with a simple design.
Wafer Check: Space-saving design, perfect for limited installation space.
Dual Plate Check: High-performance, low-pressure drop design.
Ductile Iron Double: Designed to regulate flow between a tank and a pump, these valves can also function as manual on/off valves for tank venting. When fluid flow ceases, the disc automatically swings into position to prevent backflow.
Spring Loaded: ideal for gas and oil applications in residential, commercial, and industrial heating systems.
Ductile Iron Flap: suitable for headwall or flange mounting, offering corrosion resistance and preventing debris and backflow in pipelines, thanks to its double-hinged design for excellent sealing.

How to select the right Check Valve for your application.

To ensure optimal performance and longevity, consider the following factors when choosing the right check valve:

Pipe Size: The diameter of the pipe to which the valve will be connected.
Fluid Type: The specific fluid being transported, whether it's water, oil, gas, or another substance.
Pressure Rating: The maximum pressure the valve can withstand without compromising its integrity.
Temperature Rating: The maximum temperature the valve can handle without affecting its performance.
Flow Rate: The required flow rate of the fluid through the valve.
Material Compatibility: The compatibility of the valve material with the fluid to prevent corrosion and other issues.

By carefully evaluating these factors, you can select the ideal check valve to meet your specific application requirements.

Showing 1 - 22 of 22 products

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From £126.42 £162.07

Georg Fischer PVCu 561 Check Valve EPDM Seals -Metric & Imperial Ends Flocon

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From £148.60 £190.51

Georg Fischer PVCu 561 Check Valve FPM Seals - Imperial Ends Flocon

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From £126.42 £146.02

Georg Fischer PVCu 562 Check Valve EPDM Seals - Imperial Ends Flocon

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From £23.16 £58.87

Swing Check Valves Flocon

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From £40.84 £96.23

Tecno Plastic PVCu Check Valve VRO21IL Flocon

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From £51.50 £85.13

Comer PVCu Double Union Check Valve Metric & Imperial - Plain EPDM Seals Flocon

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From £58.04 £98.80

Comer ABS Double Union Check Valve Imperial with EPDM/Plain Ends Flocon

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From £480.24

Ductile Iron Flap Valve PN16 Wall Fix Flocon

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From £108.31 £270.77

Albion Wafer Flap Check Valves ART 963 Flocon

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From £1,037.04

Wouter Witzel Duo Check PN16 Flocon

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From £171.29

Albion Cast Iron Dual Plate Check PN16 - ART 121 Flocon

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From £36.96 £77.88

Albion Bronze Lift Check Valve - ART 380 Flocon

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From £27.88 £58.74

Albion Bronze Swing Check Valve - ART 384 Flocon

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From £194.00 £431.11

Albion Cast Iron Swing Check Valve PN16 - ART 170 Flocon

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From £2,159.69

Albion Ductile Iron Double Check PN16 - ART 236 Flocon

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From £63.52 £133.85

Class 800 Forged Steel Check Valve NPT/BSP/Socket Weld Ends Flocon

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From £9.67 £21.84

Albion Brass Spring Loaded Check Valve - ART 66 Flocon

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From £27.25 £58.74

Albion Spring Loaded Check Valve -ART 966 Flocon

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From £15.46 £26.64

Albion BSP DZR Double Check Valve - ART 36 Flocon

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From £8.11 £8.22

Albion Compression Double Check Valve -ART 37 Flocon

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£215.22

Spirax Hills BSP Sight Check 022230 Flocon

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From £57.49 £136.30

Albion Wafer Spring Check Valve PN 16/40 ART 964 Flocon Valves Pipes & Fittings

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FAQs for Check Valves (non-return valves)

What are the key benefits of Check Valves?

Check valves are essential components that prevent fluid or gas from flowing in the wrong direction. They offer numerous benefits, including:

Safeguarding equipment from damage caused by backflow.
Maintaining fluid purity by preventing the mixing of different materials.
Preventing pipe system failures and ensuring uninterrupted operation.
Ensuring consistent pipe system pressure for optimal performance.
Protecting systems from damage caused by debris and contaminants.

What is the difference between a single check valve and a double check valve?

A single check valve offers protection against backflow in water that has undergone changes in appearance, taste, odour, or temperature but remains safe for consumption and poses no health risks. A common application for single check valves is in systems where hot and cold water supplies are mixed.

A double check valve, essentially two single check valves working in tandem, provides a more reliable and secure solution for preventing contamination through backflow. The additional valve enhances the seal, creating a stronger barrier.

What is the difference between a Non-Return Valve and a Check Valve?

Non-return valves are often used in applications where preventing backflow is beneficial but not strictly necessary.

Unlike check valves, non-return valves typically aren't designed for long-term reliability, use with drinking water, or performance under stress. Check valves on the other hand, undergo rigorous testing to ensure they meet these higher standards.