
These certifications ensure full compliance and high-performance for critical EU and UK market applications. Donsen also offers WRAS approved PPR valves wholesal and SKZ certified PVC ball valves China.

WRAS certification plays a vital role in safeguarding water quality and public health across the UK. It ensures that products connected to the UK’s mains water supply will not cause waste, misuse, undue consumption, or contamination of drinking water. This is particularly important for plumbing products, as poorly designed or manufactured items can lead to serious issues. For instance, non-compliant products might backflow contaminated water, leak untreated wastewater, damage water pressure systems, or violate local plumbing codes.
The certification process involves rigorous testing. WRAS-approved valve fittings must meet several key criteria to maintain water quality and system integrity. These include using safe, non-toxic materials suitable for drinking water, ensuring mechanical suitability and resistance to corrosion, and verifying proper sizing to match pipework and flow requirements. The design and materials must not react with water or leach harmful substances, ensuring the product does not compromise water safety or reliability. For non-metallic materials, testing occurs in accordance with BS6920 standards, which evaluates the suitability of products for use in contact with drinking water regarding their effect on water quality.
Lead-free materials are vital for safeguarding public health. UK regulations, including the Water Supply (Water Fittings) Regulations 1999, impose strict standards for materials in contact with drinking water. Manufacturers design valve fittings using alloys like dezincification-resistant (DZR) brass, which limits lead content to a maximum of 0.25% by weight on wetted surfaces. This approach aligns with both UK and European Union directives, ensuring drinking water remains free from harmful contaminants. Stainless steel and advanced plastics also provide lead-free alternatives, supporting compliance and long-term safety. Always verify WRAS approval when selecting valve fittings, as this certification confirms the product meets UK health and safety standards for lead content and material quality.
Beyond material-specific leaching, there is a risk of Legionella bacteria multiplying in water supply systems, particularly in older infrastructure and newer systems that retain water in pipes longer, which can lead to Legionnaires’ disease. Plastic pipes, in general, are noted for leaching a wide array of organic compounds, including VOCs, phthalates, bisphenol analogs, halogenated organics, organotins, and styrene, many of which are unregulated or lack robust health data. WRAS certification directly addresses these concerns by ensuring materials do not contribute to such risks.
WRAS certification is essential for UK installers and specifiers. It provides a strong assurance of quality and safety for CPVC products. This endorsement from key approval agencies like WRAS signifies that the functionality and performance of CPVC valves are reliable, making them a trustworthy choice for plumbing systems in the UK market. Water suppliers depend on WRAS-approved products to avoid legal repercussions like fines or prosecution. Using non-certified valves can lead to contamination, operational failures, and legal penalties, highlighting the importance of WRAS approval for maintaining the integrity of the UK’s drinking water supply.
The Water Regulations Advisory Scheme (WRAS) is a regulatory body supported by 26 UK water supply companies. Its primary goal is to protect public health by preventing contamination of public water supplies and promoting efficient water use. WRAS achieves this by maintaining lists of approved suppliers, plumbers, products, and materials, all assessed for compliance with the Water Supply (Water Fittings) Regulations and Scottish Byelaws. These regulations mandate that water fittings must not cause waste, misuse, undue consumption, or contamination of the water supply, and must meet appropriate quality and standard requirements. For a cpvc valve manufacturer like Donsen, this certification is not just a mark of quality but a gateway to serving the UK market responsibly.
SKZ certification represents a gold standard for material performance and durability within the European market. This certification involves extensive and rigorous testing protocols. SKZ evaluates CPVC products for their ability to withstand various operational conditions. These tests include pressure resistance, ensuring the valves can handle specified system pressures without failure. They also assess temperature stability, confirming the material maintains its integrity and performance across a wide range of temperatures common in plumbing and industrial applications.
Furthermore, SKZ conducts chemical resistance tests. These tests verify that the CPVC material does not degrade or leach harmful substances when exposed to common chemicals found in water systems. Long-term performance and aging tests are also crucial. These evaluations simulate years of use, providing assurance about the product’s durability and reliability over its lifespan. A cpvc valve manufacturer like Donsen commits to these stringent tests. This commitment ensures their products consistently meet the highest quality benchmarks. Donsen uses imported high-quality raw materials. This practice further guarantees the superior performance and longevity of their CPVC valve series.
SKZ certification is essential for adhering to European construction and plumbing norms. This certification confirms that CPVC valves comply with relevant European standards, including various EN standards. These standards dictate material properties, performance characteristics, and installation guidelines for plumbing components. Compliance with these norms is mandatory for products sold and installed across the European Union.
SKZ certification facilitates market entry and acceptance for a cpvc valve manufacturer in Europe. It provides a clear signal to installers, specifiers, and regulatory bodies that the product meets all necessary safety and performance requirements. This eliminates uncertainty for project managers and engineers. They can confidently specify Donsen’s SKZ-certified CPVC valves for their projects. This certification reinforces Donsen’s position as a reliable supplier of high-quality, compliant plumbing solutions for the European market.
Donsen proudly announces its entire CPVC valve series now holds both WRAS and SKZ certifications. This significant achievement means Donsen, a leading cpvc valve manufacturer, offers a complete portfolio of compliant products. Donsen has over 20 years of experience in plastic pipeline manufacturing. The company produces a wide array of products, including PP-R, U-PVC, PE, and CPVC pipes and fittings. This comprehensive certification covers all types of CPVC valves within Donsen’s extensive product line. Customers can now access a full range of certified solutions. This ensures every CPVC valve meets the highest international standards for quality and performance.
These new certifications bring substantial benefits to customers and projects across the EU and UK. Customers gain access to fully compliant and high-performance CPVC solutions. This simplifies the selection process for installers and specifiers. They can confidently choose Donsen’s valves, knowing they meet strict regulatory requirements. The certifications reduce project risks and streamline approval processes. Donsen’s commitment to quality ensures reliable and safe water systems. The company already holds CE, NSF, SABs, GOST, and SIAA certifications. This global recognition further reinforces Donsen’s position as a trusted supplier. From 2026, Donsen will provide certified CPVC valves, supporting successful and compliant projects throughout Europe and the UK.
Donsen’s WRAS and SKZ certifications mark a significant milestone for the company. These approvals provide access to fully compliant, high-performance CPVC solutions for EU and UK markets from 2026. This reinforces Donsen’s commitment to quality, safety, and market leadership as a leading cpvc valve manufacturer.
WRAS ensures compliance with UK water regulations. SKZ certifies material performance and durability for European standards. Both guarantee high quality and safety.
Donsen’s full range of WRAS and SKZ certified CPVC valves will be available for purchase starting in 2026.
Customers gain access to fully compliant, high-performance CPVC solutions. These certifications simplify product selection and reduce project risks.