Kessel backflow stop Staufix 73051 DN 50, for wash basin siphons

Kessel backflow stop KE73051 Staufix siphon DN 50 made of plastic Kessel backflow double stop Staufix DN 50 made of plastic, with two automatically closing Klappen , one of them as a manually lockable emergency lock, with wall mounting. Inlet connection DN 40 vertical for on-site pipe odor Pipe , outlet DN 50 horizontal for connection to HT-match2 according to DIN 19560. Backflow double lock: Staufix Standard: DIN EN 13564 Type 5 Installation body: white Nominal diameter outlet: DN 50 (OD 50 mm) Nominal diameter inlet: DN 40 (OD 40 mm) Installation type: after on-site siphon