Reflux 819 is a downstream pilot-co
ntrolled pressure regulator for medium and high pressure applications.
It is particulary suitable for use within the
frame
work of installation for the distribution of natural gas, as well as for supplying network for civil and industrial use.
The Reflux 819 regulator is classified according to the European standard EEN 334 as a regulator which reacts in closure (Fail to close).