6"/150mm Buffalo Non Return Valve

6"/150mm Buffalo Non Return Valve

Our 6"/150mm Buffalo Non Return Valve is designed to provide reliable protection against backflow and pest entry in drainage systems. Suitable for use with clay, PVC, and cast iron pipework, it can be installed within either the inlet or outlet of a drainage chamber, making it a versatile solution for a wide range of applications.

Once securely fitted into the pipework, the valve acts as an effective barrier against rodents and other pests attempting to enter a property through the drainage system. It is particularly useful in areas where rodent activity is a concern, helping to maintain hygiene and protect buildings from unwanted intrusion.

During periods of heavy rainfall or flooding, drainage systems can become overloaded, forcing wastewater back through pipes. This valve is designed to prevent that by allowing flow in one direction only, stopping effluent from entering homes, businesses, and commercial premises. It is widely used in properties located on flood plains or in areas at risk of sewer surcharge.

The valve also provides excellent pest control. Its flap is reinforced with an integrated stainless steel plate, preventing rodents from chewing through. In addition to rats and mice, it helps block frogs, snakes, and other vermin from accessing drainage systems.

Another key benefit is the prevention of unpleasant and potentially harmful odours. By stopping backflow, the valve also blocks noxious fumes from travelling back into buildings, making it ideal for environments where hygiene is critical, such as food preparation and catering facilities.

A lockable flap allows the valve to be closed when needed, enabling safe and convenient maintenance of drainage systems. The valve is fully reusable, meaning it can be installed temporarily during maintenance work and removed for future use.

Its unique funnel-shaped body is designed to improve water flow through the unit, helping to reduce the risk of blockages. Built for durability and compatibility, the valve fits both clay and plastic pipe systems and provides long-lasting, dependable performance.