Polypipe Anti Syphon Valve - 50mm - White

Name: Polypipe Anti Syphon Valve - 50mm - White
Brand: Polypipe
SKU: fq7rkb3lwh
Price: 10.25 GBP
Availability: InStock

The Polypipe Anti Syphon Valve 50mm ABS Solvent Weld provides reliable protection for domestic was...

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Polypipe PVS50 Anti Syphon Valve 50mm ABS Solvent Weld White Waste Pipe Fitting for Residential Drainage

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Product Information

Full details

The Polypipe Anti Syphon Valve 50mm ABS Solvent Weld is designed for homeowners and plumbing professionals seeking to ensure reliable domestic waste systems. Its primary benefit is preventing siphonage, which protects against unpleasant odors and potential water damage. A key consideration is its requirement for solvent weld jointing, meaning specific tools and techniques are necessary for installation. This 50mm valve offers durable ABS construction, a clean white finish, and seamless integration with Polypipe's Soil Systems range, providing secure and long-lasting waste drainage solutions for sanitaryware and kitchen appliances.

All features

Model Part Number	PVS50
Brand	Polypipe

Extended Product Information

FAQs

What is an anti-syphon valve used for?

An anti-syphon valve is used in plumbing systems to prevent water from being siphoned out of a trap. This maintains the water seal, which is crucial for preventing sewer gases from entering a building.

What does 'ABS Solvent Weld' mean?

ABS refers to the type of plastic (Acrylonitrile Butadiene Styrene) the valve is made from. Solvent Weld indicates the method of joining – using a solvent cement to fuse the pipe and fitting together permanently.

Do I need special tools to install this valve?

Yes, you will need tools for cutting pipe, cleaning surfaces, and applying ABS solvent cement. A pipe cleaner and applicator are typically used alongside the solvent cement itself.

Can this valve be used with push-fit pipes?

No, this valve is specifically designed for solvent weld connections and is not compatible with push-fit or compression fittings.

What is the size of this valve?

This is a 50mm valve, designed to connect to 50mm diameter waste pipes.

Where is the best place to install an anti-syphon valve?

Generally, anti-syphon valves are installed on the discharge pipe from fixtures, usually above the trap seal but below the flood level of the fixture, on longer or more complex pipe runs where siphoning is a risk.

How do I clean the exterior of the valve?

You can clean the exterior with a damp cloth. Avoid using harsh or abrasive cleaning chemicals that could damage the ABS material.

Troubleshooting

Slow draining or gurgling sounds from the drain.

This could indicate a blockage upstream or downstream of the valve. Check connected traps and wider pipework for obstructions. Ensure the valve itself is correctly installed and not the source of a blockage.

Water is still siphoning from the trap.

Verify that the valve is installed in the correct orientation as per manufacturer guidelines. Ensure the solvent weld joint is secure and leak-free. Check if the pipe run is excessively long or steep, which might require additional venting solutions.

Leak at the solvent weld joint.

The joint may not have been prepared or cemented correctly. This joint will need to be cut out and re-made, ensuring proper surface preparation, adequate solvent cement application, and sufficient curing time.

Pros and Cons

Pros

Prevents common issues like gurgling and trap emptying in waste pipes.
Robust ABS material ensures longevity and resistance to common household chemicals.
Solvent weld jointing provides a very secure and permanent connection.
White finish offers a clean, unobtrusive look in visible plumbing areas.
Part of a larger system, allowing for flexible and integrated waste management solutions.

Cons

Requires specific solvent cement and preparation for installation; not push-fit.
Only suitable for 50mm pipework; not a universal size.
White color may not match all decors if visible.
Primarily for domestic waste systems; may not be suitable for high-pressure or industrial applications.

Setup, Compatibility & Care

Setup: This valve requires solvent weld jointing. Ensure the pipe ends and the valve's socket are clean, dry, and free from dust. Apply the appropriate ABS solvent cement evenly to both surfaces and push the pipe into the valve socket with a slight twisting motion, holding for a few seconds to set. Allow adequate curing time as per the solvent cement manufacturer's instructions before testing the system.

Compatibility: The valve is designed for 50mm diameter ABS or PVC pipework that is prepared for solvent welding. It is part of the Polypipe Soil Systems range and is compatible with other Polypipe traps and overflow solutions. It is intended for use in domestic gravity-fed waste drainage systems.

Care: The valve itself requires minimal maintenance. Periodically check for any signs of damage or leaks. Ensure that the connected waste system is flushed regularly to prevent blockages within the pipework, which could indirectly affect the valve's performance. Clean the exterior with a damp cloth if necessary; avoid abrasive cleaners.