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DAVINCI WRAS VALVES CERTIFICATION. Your potable water projects safe.đź’§

  • Jun 16
  • 4 min read


Benefits of Drinking-Water Approvals? Absolutely.


When valves are installed in systems carrying drinking water, product quality alone is not enough. The valves and their water-contact materials must also comply with the sanitary and regulatory requirements of the country where they will be installed.

With many years of experience in the valve industry, DAVINCI VALVES actively participates in drinking-water infrastructure projects worldwide.


To support customers operating in different markets, DAVINCI VALVES offers certified product ranges with WRAS Approval, DM 174 compliance, PZH Hygienic Attestation and ACS certification.


These approvals help demonstrate that the applicable DAVINCI products and their water-contact components have been assessed for use in drinking-water applications.


One Objective, Different National Approvals

WRAS, DM 174, PZH and ACS share the same fundamental objective:

To protect drinking-water quality and ensure that products in contact with water do not create an unacceptable risk to human health.


However, they are not automatically interchangeable.

Each system has its own:

  • Legal framework

  • Testing requirements

  • Approved-material criteria

  • Documentation procedures

  • Scope of certification

  • Conditions and periods of validity

That is why an approval must always be checked against the specific valve model, destination country and project requirements.


🇬🇧 United Kingdom WRAS Approval

WRAS Approval helps demonstrate compliance with the relevant UK water-fitting requirements.

For valves and pipeline products, the approval process may include:

  • Mechanical product testing

  • Assessment of non-metallic materials under BS 6920

  • Pressure and performance testing

  • Product identification and marking

  • Verification of installation conditions

  • Definition of pressure and temperature limitations


DAVINCI VALVES holds official WRAS Approvals covering several valve and pipeline-product ranges, including gate valves, butterfly valves, dismantling fittings, air-release valves and non-return valves.

Customers, consultants and project engineers can verify and download the official DAVINCI VALVES WRAS approval records here:


The exact models, sizes, materials, pressure ratings and conditions covered must always be confirmed in the corresponding official approval.


🇮🇹 Italy DM 174 Approval

In Italy, materials and products used in drinking-water collection, treatment, supply and distribution installations are subject to the applicable Italian sanitary requirements, traditionally associated with Ministerial Decree No. 174/2004 DM 174.

DM 174 focuses on the hygienic suitability of materials and components in contact with water intended for human consumption.

Compliance may require:

  • Verification of material composition

  • Assessment of permitted substances

  • Migration testing

  • Identification of every water-contact component

  • Supporting technical documentation

  • Manufacturer declarations

  • Evidence of hygienic suitability


DAVINCI VALVES offers product ranges complying with DM 174 requirements, supporting customers and drinking-water projects in the Italian market.

DM 174 should not simply be considered the “Italian version of WRAS”. It is a separate national regulatory framework with its own compliance requirements.


🇵🇱 Poland PZH Hygienic Attestation

In Poland, products and materials intended to come into contact with drinking water have traditionally been assessed through the PZH Hygienic Attestation, associated with the Polish National Institute of Public Health NIZP PZH-PIB.


The assessment may consider:

  • Material composition

  • Intended application

  • Water-contact surface

  • Operating temperature

  • Migration results

  • Laboratory reports

  • Manufacturing information

  • Product technical documentation


DAVINCI VALVES has product ranges supported by PZH Hygienic Attestation, helping customers demonstrate the sanitary suitability of the corresponding valves for drinking-water projects in Poland.

As Poland transitions towards the new harmonised European framework, the validity and scope of the applicable PZH documentation must still be checked for each product and project.


🇫🇷 France ACS Approval

In France, the principal sanitary conformity system for products in contact with drinking water is the

ACS Attestation de Conformité Sanitaire.


The ACS assessment may include:

  • Verification of material formulations

  • Compliance with applicable positive lists

  • Migration testing

  • Evaluation of every component in contact with water

  • Assessment of the assembled product

  • Definition of authorised conditions of use


For a complete valve, the assessment may need to consider:

  • Valve body

  • Internal coating

  • Seats

  • Seals and O-rings

  • Elastomers

  • Plastics

  • Lubricants

  • Adhesives

  • Other internal water-contact components


DAVINCI VALVES offers ACS certified products ranges for drinking water applications, supporting customers, contractors and engineering companies participating in projects in France. Ask and specify yours!



The International Advantage of DAVINCI VALVES


Having product ranges supported by WRAS, DM 174, PZH and ACS provides important benefits for international drinking-water projects:


đźš° Wider Market Access

Different countries request different sanitary approvals. Having several recognised certifications allows DAVINCI VALVES to support projects across multiple European markets.


đźš° Greater Customer Confidence

Independent assessment provides customers, consultants and water utilities with additional confidence in the hygienic suitability of the selected products.


đźš° Reduced Documentation Delays

Providing the appropriate certificates and technical documentation can simplify product approval procedures and reduce repeated requests during project execution.


đźš° Support for International Specifications

International tenders and engineering projects frequently specify the required drinking-water approval according to the installation country.


DAVINCI VALVES can support customers with products covered by different national approval systems.

đźš° Extensive Drinking-Water Experience


DAVINCI VALVES has many years of experience participating in drinking-water and water-infrastructure projects.

This experience includes support with:

  • Product selection

  • Valve sizing and configuration

  • Drinking-water approval documentation

  • Technical datasheets

  • Material information

  • Pressure and temperature verification

  • Tender documentation

  • Project-specific requirements

  • International deliveries


Important Consideration: Not every certification necessarily covers every DAVINCI VALVES product.

Approvals are generally linked to a defined scope that may include:

  • Specific valve families

  • Particular models

  • Defined nominal diameters

  • Approved materials

  • Specific coatings and elastomers

  • Pressure classes

  • Temperature limitations

  • Manufacturing configurations

  • Installation conditions


Customers should therefore confirm that the exact product ordered is included within the applicable approval scope.


The DAVINCI VALVES team can assist with this verification before quotation, ordering and delivery.

WRAS, DM 174, PZH and ACS certications demonstrate DAVINCI VALVES’ commitment to drinking water safety, regulatory compliance and international project support.

These certifications strengthen:

  • Access to drinking-water projects

  • Customer and consultant confidence

  • Compliance with national requirements

  • Product traceability

  • Technical documentation

  • International market coverage

With certified product ranges and many years of experience, DAVINCI VALVES actively supports drinking water projects in the United Kingdom, Italy, Poland, France and all over the worldwide international markets.

Consult and download our official WRAS Approvals here:

For information about our DM 174, PZH and ACS certified product ranges, contact our team and tell us the destination country, valve type and project requirements.

Equip your drinking-water projects with experienced support, reliable valves and the appropriate international certifications. Contact DAVINCI VALVES today: valves@davincivalves.com🤝


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