The compact safety valve with a 1/2-inch size outlet with threaded connection has been significantly optimized in performance by a thorough overhaul. Thus, the flow rates of all nominal diameters increased considerably for both vapours/gases and liquid applications.
The values are at a high level and are in some cases higher than those of comparable competitor valves. The series is available with PTFE sealing from 0.5 to 70 bar in three nominal diameters DN 8, 10 and 15, thus optimally completing the range of bestsellers of the 451/851 series.
Please refer to data sheets 461 and 861 for further details.