BS EN 14454:2005

What is BS EN 14454 - Hose union backflow preventer about?  

BS EN 14454 is a technical specification that specifies: 

• Field of application 
• Requirements for hose union backflow preventer 
• Dimensional and the physico-chemical properties and the properties of general hydraulic, the mechanical and acoustic design of hose union backflow preventers DN 15 to DN 32 
• Test method and requirements for verifying these properties 
• Marking and presentation 
• Acoustics 

BS EN 14454 specifies the characteristics of hose union backflow preventers DN 15 to DN 32 that are suitable for use in drinking water systems at pressures up to 1 MPa (10 bar) and temperatures up to 65 °C and for 1 h at 90 °C. 

Note: In respect of potential adverse effects on the quality of water intended for human consumption, caused by the product covered by BS EN 14454: 

• BS EN 14454 provides no information as to whether the product may be used without restriction in any of the Member States of the EU or EFTA 
• it should be noted that, while awaiting the adoption of verifiable European criteria, existing national regulations concerning the use and/or the characteristics of this product remain in force 

Who is BS EN 14454 - Hose union backflow preventer for? 

BS EN 14454 on hose union backflow preventer is useful for: 

• Pipe interrupter manufacturers  
• Equipment designers 
• Quality assurance management 
• Testing agencies  
• The water industry 
• The mechanical industry 

Why should you use BS EN 14454 - Hose union backflow preventer?  

A backflow preventer (backflow valve) prevents water from flowing back into the water supply from the garden hose. There is a risk of pollutants or chemicals entering the water supply if a backflow preventer is not fitted to the garden hose faucet line. Their goal is to keep water safe from contamination from other sources due to backflow. Water pressure is generally maintained at a high level in water distribution systems to allow water to flow from the tap, shower, or other devices. 

BS EN 14454 provides you with terms and definitions, designation, marking, and technical documents. BS EN 14454 guides you with the general design, physico-chemical and acoustic characteristics and tests. BS EN 14454 ensures high quality, durability, safety, and protection for its users.