The demands and requirements on products for drinking water are understandably extremely high. It's imperative that absolutely no impurities can leak into the water flow.
Therefore rubber compounds must not in any way contaminate or affect the water. The requirements for rubber materials that come in contact with drinking water are different in every country.
That’s why you have to deal with many different approvals and certification schemes for every country.
THEO can advice you about the right materials for drinking water applications and compliancy to worldwide regulations.
In the USA NSF 61 apply, in Germany KTW, DVGW W270 and UBA Elastomerleitlinie, in the UK WRAS, in France ACS, in the Netherland KIWA.