Today's KNOWLEDGE Share : PA6-based WRAS-certified Solutions for Drinking Water Applications

Today's KNOWLEDGE Share

DOMO Introduces PA6-based WRAS-certified Solutions for Drinking Water Applications

DOMO Chemicals announces the successful achievement of the first PA6-based Water Regulation Approved Scheme (WRAS)-certified solutions, demonstrating that the material is suitable for drinking water contact applications. 

Eliminates Risk of Galvanic Corrosion and Scale Formation:

With increasing urbanization, one of today’s key challenges is to provide sustainable access to quality water. An optimal way to do this is to provide advanced polyamide technology for metal replacement and high-end polymers for the water management industry. This helps to ensure greater sustainability, lower system and maintenance costs, and easier and safer handling of water.  

"Our new range of TECHNYL® SAFE C can effectively replace brass and other metals in water distribution, filtration and irrigation, sanitary and small appliance components requiring WRAS approval up to 85°C," said Paolo Rossi, Industrial Consumer Goods Application Development manager, DOMO Chemicals. "The portfolio has been developed to provide a specific property profile compared to current best-in-class materials and to meet the regulatory requirements for contact with drinking water set out in BS6920-1:2000 and/or 2014, which define compliance with WRAS." 

DOMO's metal replacement materials eliminate the risk of galvanic corrosion and scale formation, and provide significant system savings compared to the high cost of processing and machining new brass alloys and the high environmental impact of foundry end products. 

Water management applications have very specific requirements, such as good mechanical properties retention after long-term water contact with chlorine (disinfectants) even at warm temperatures, as well as long-term dimensional stability and oxidative degradation resistance. The most common applications in this field are water filtering, water softeners and metering systems, submersible pumps, shut-off valves, fittings, faucets, cartridges, boiler components like hydro-block manifolds, along with balancing and other small home appliance parts. 

Water Regulation Approved Scheme

WRAS approval is a simple way of demonstrating that a material is of a suitable quality and standard and has been tested to demonstrate compliance with BS6920. 

Any water fitting which, when installed, will carry or receive water from the public water supply in the UK must comply with the Water Supply Regulations or Scottish Byelaws.These require that a water fitting must not cause waste, misuse, excessive consumption or contamination of the water supply and must be "of an appropriate quality and standard.” Non-metallic materials and components are only tested for their effect on water quality.  

The new TECHNYL® SAFE C solutions complement the existing WRAS-certified TECHNYL® SAFE portfolio of water and food contact, based on PA66 and PA6.10. 

source: DOMO Chemicals/omnexus.specialchem.com