{"id":213047,"date":"2024-10-19T13:48:10","date_gmt":"2024-10-19T13:48:10","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bsi-20-30409068-dc-2020\/"},"modified":"2024-10-25T06:41:12","modified_gmt":"2024-10-25T06:41:12","slug":"bsi-20-30409068-dc-2020","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bsi-20-30409068-dc-2020\/","title":{"rendered":"BSI 20\/30409068 DC 2020"},"content":{"rendered":"

This document specifies the dimensional, physical-chemical, design, hydraulic, mechanical and acoustic characteristics of mechanical disconnectors, direct actuated Family G, type A.<\/p>\n

This document is applicable to mechanical disconnectors in nominal sizes DN 8 up to DN 250, intended to prevent the return of water having lost its original sanitary and drinking qualities (called \u201cpolluted water\u201d in this document), into the potable water distribution system whenever the pressure of the latter is temporarily lower than in the polluted circuit.<\/p>\n

This document covers the mechanical disconnector of PN 10<\/span><\/span> that are capable of working without modification or adjustment:<\/p>\n