Applications Präzival I: Medical pressure regulator in accordance with DIN EN ISO 10524-1 for oxygen therapy. With primary pressure equalisation. Suitable for mobile use. Orientation-independent use (without humidifier). Flow continuously adjustable. Präzival II: Medical pressure regulator in accordance with DIN EN ISO 10524-1 for oxygen therapy. With tube flowmeter and primary pressure equalisation. Flow infinitely adjustable Technical data Design: Spring-loaded membrane pressure regulator, Brass, chrome-plated Inlet: Gas-specific hand connector in accordance with DIN 477-1 Primary pressure: Max. 20,000 kPa Manometer: Volume manometer, plus Flow manometer 0-16 l/min (only Präzival I) Outlet: 9/16 thread (Hose connection needs to be ordered separately) Flowrate: Flow infinitely adjustable between 0-15 l/min Dimensions (WxHxD) : Präzival I: 130 x 90 x 80 mm Präzival II: 150 x 150 x 75 mm