Dorot completed in August 2017, the testing and subsequent UL  listing extension covering additional direct diaphragm seal deluge valve models and variants including the 68 Series bi-functional deluge pressure reducing valves, both remote and local resetting, as well as their wide array of optional accessories, optional external position indicators including: magnetic/inductive type position indicators, ExD solenoids and pressure switches.

The UL listing extention includes as before, the optional valve materials as well as end connections that are described in Dorot Engineering data  files and IOM's for UL listed valves.