VNR series is manufactured with St. St. AISI 316 housing, flange (optional) and connections. According to the application, the functional principle is based on a sealing diaphragm counterbalanced by a blocking spring system, or based on float principle for bubbling systems. The VNR is placed between the bubbling pipe and the package regulator-converter in order to guarantee in both cases a quick and safe protection of the instrumentation from possible liquids return. A side connection can be optionally supplied for bubbling pipe clearing (only for spring version).
