At Cauchos Castilla, we continue to move forward in our commitment to quality, safety and compliance with the most stringent requirements for materials intended for contact with drinking water.
We are pleased to announce that our EPDM-017 compound, used in the manufacture of rubber seats for butterfly valves intended for drinking water installations, has obtained DVGW certification for hygienic suitability according to System 1+, within risk group P1.
This important recognition certifies compliance with the requirements established by DVGW CERT ZP 1000, UBA KTW-BWGL and DIN EN 16421, following the successful completion of the evaluation and certification process carried out by the competent bodies.
Much more than a certification: the assurance of System 1+
Obtaining this certification under System 1+ represents a particularly significant milestone for Cauchos Castilla. This assessment and control system goes beyond product testing alone, as it also includes the supervision of the manufacturing process and ongoing compliance with the requirements established by the certification programme.
As a result, our customers can rely on the assurance that butterfly valve seats manufactured with our EPDM-017 meet the stringent requirements applicable to elastomeric components intended for drinking water installations.
A certified solution for the international drinking water market
This new certification strengthens our ability to offer solutions to valve manufacturers and companies in the water industry seeking high-performance materials backed by guarantees of quality, safety and compliance with European market requirements.
The certification of EPDM-017 according to System 1+ represents another important step forward in our strategy of developing specialised materials and enables us to expand our product range for increasingly demanding applications within the drinking water industry.
At Cauchos Castilla, we remain committed to providing our customers with technically advanced, reliable rubber solutions backed by internationally recognised certifications.
EPDM-017: quality, safety and confidence certified by DVGW.




