Reflux 819 is a downstream pilot-controlled pressure regulator for medium and high pressure applications.
It is particulary suitable for use within the framework 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).
Minimum working differential pressure
Closing pressure class SG
Outlet pressure range of Wd
Available size DN
Maximum working differential pressure
Range of inlet pressure bpu
up to 1,450 PSIG
-10°C to +60°C (+14 to +140°F) (higher or lower temperatures on demand)
up to 1%
5% to 1% depending on outlet pressure
150-300-600 RF or RTJ according to ANSI B16.5 and PN 16 according to ISO 7005