25 x 25mm MDPE Elbow For joining 25mm MDPE (medium density polyethylene) pipe Performs well under pressure Ideal for underground cold water systems, absorbs high levels of thermal and mechanical stress Simple to install PN16 Rating 90Elbow Durable polypropylene construction Pressure Rating: 16 bar. Safety Factor: 3. Operating Temperature: 20°C @ 16 bar, 45°C @ 10.8 bar, 70°C @ 3.4bar. Standards: UNI 9561-9562, UNI EN 712-713-715, UNI ISO 7/1, ISO 14236, UNI 2233.Pack of 5 couplings.