About Kiwa thermostatic mixing valve certification 

This certification covers products for compliance against: 

  • Type 2: Thermostatic mixing valve EN 1111 & EN 1287
  • Type 3: Thermostatic mixing valve DoH-HTM-04-01 Supplement D 08

Certification process  

The certification offers two levels of compliance:

Attestation level 1+

Requires initial product testing and factory production control audit, the certification is
then maintained via annual audits. Limited audit performance testing is also required
during the 5 year period.

Attestation level 3

Requires initial product testing and full product re-test after 5 years. Limited audit
performance testing is also required during the 5 year period.

Please note - Limited audit performance testing is once during a 5 year period for Type 2, and twice during a 5 year period for Type 3.

As part of our certification we offer a unique structure to include or use other Kiwa
certificates in order to satisfy product compliance in order to avoid unnecessary re-testing.

The testing will be accommodated within the Kiwa laboratories, ISO/IEC 17025 accredited by UKAS and RVA, and the process is complying with ISO/IEC 17065 product certification scheme.

Pre-compliance/consultancy testing is also offered against the above standards on
production or prototype products. We can also accommodate a developing product range if
required.

Benefits of our thermostatic mixing valve certification services

  • Demonstrates your product has undergone a robust, independent evaluation carried out by a global TIC company. 
  • Opportunity to differentiate your products in your marketplace with a product that is certified by an independent third-party. 
  • Ongoing production assessments (Level +1) to maintain compliant even as regulations change. 
  • Increase findability of your regulation 4 compliant product by water suppliers, architects and specifiers via the KUKreg4 database. 
  • Continuous test plan rather than a 5 year re-test. 
  • Our unique structure can include or use other Kiwa certificates in order to satisfy product compliance.