• John Guest Speedfit 12mm non return check valve for caravan motorhome campervan and boat water systems
  • Front view of John Guest Speedfit 12mm non return check valve
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John Guest Speedfit 12mm Non Return / Check Valve

John Guest Speedfit 12mm Non Return / Check Valve

£8.95 inc. VAT
£8.95 inc. VAT
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The John Guest Speedfit 12mm Non Return / Check Valve is designed to allow water to flow in one direction only, preventing reverse flow through your fresh water system. It is ideal for caravans, motorhomes, campervans, boats and horseboxes where backflow protection is required to help protect pumps, water heaters and other plumbing components.

Designed for use with 12mm John Guest Speedfit and Whale semi-rigid pipe, the valve installs quickly by simply pushing the pipe fully into each end. The push-fit connections create a secure, leak-resistant seal without the need for tools, solvent or sealants.

Manufactured from durable acetal, this genuine John Guest valve is corrosion resistant, fully demountable and suitable for potable water and fresh water systems. The valve should be installed with the flow arrow pointing in the direction of water flow for correct operation.

Features

  • Genuine John Guest Speedfit fitting
  • 12mm push-fit x 12mm push-fit connection
  • Prevents reverse water flow
  • Protects pumps, water heaters and plumbing systems
  • Compatible with John Guest Speedfit and Whale 12mm semi-rigid pipe
  • Quick push-fit installation
  • No tools, solvent or sealants required
  • Fully demountable
  • Durable acetal construction
  • Suitable for potable water and fresh water systems
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Frequently Asked Questions

A non return valve, also known as a check valve, allows water to flow in one direction only. It prevents water from flowing back through the pipework, helping to protect pumps and appliances.

A non return valve helps prevent water flowing back towards the pump or fresh water tank, reducing the risk of pressure loss, backflow and unwanted contamination while improving the reliability of your plumbing system.

Yes. It is designed for 12mm John Guest Speedfit pipe and is also compatible with 12mm Whale semi-rigid pipe.

The valve should be fitted with the flow arrow pointing in the direction of normal water flow. This ensures the valve operates correctly and prevents reverse flow.

Yes. It is suitable for potable fresh water systems and is commonly used in caravans, motorhomes, campervans and boats.

Can't find the answer you're looking for?
Give our technical team a call on 01271 611015 (Option 2) and we'll be happy to help.