SK EN 14455:2015

Pajisjet për të parandaluar ndotjet nga kthimi mbrapsht i ujit të pijshëm - Valvola hyrëse me ajër të ngjeshur DN 15 deri DN 50 - Familja L, tipi B.

Devices to prevent pollution by backflow of potable water - Presssurised air inlet valves DN 15 to DN 50 - Family L, type A and type B

Asnjë informacion i shtuar.

This document specifies: a) field of application; b) requirements for pressurised air inlet valves; c) dimensional and the physico-chemical properties and the properties of general hydraulic, mechanical and acoustic design of pressurised air inlet valves DN 15 to DN 50; d) test procedure and requirements for verifying these properties; e) marking and presentation; f) acoustics. This document specifies the characteristics of pressurised air inlet valves DN 15 to DN 50 that are suitable for use in drinking water systems at pressures up to 1 MPa (10 bar) and temperatures up to 65 °C and for 1 h at 90 °C.