Standard
[CURRENT]
2017-10
DIN 3505:2017-10
Controllable backflow preventer with reduced pressure zone - Family B type A according to DIN EN 12729 for temporary connection to potable water supply installed outside of buildings
This standard applies to BA backflow preventer in accordance with DIN EN 12729 for temporary connection to potable water supply in accordance with DIN EN 805 and DVGW W 400-3 outside buildings for ...