mortar couplings operating pressure

...Mortar couplings, mortar plugs Made of ductile iron / galvanized steel and yellow chromated. For mortar transport, concrete transport, or screed transport at pumps, spraying devices, plastering machines, etc. Series TÜV tested System 23.5 Available as mortar coupling (female part) and mortar plug (male part) with - Hose nozzle 25, 35, and 50 mm - Internal thread 1", 1 1/4", 1 1/2", 2" Fittings are available separately or, upon request, completely assembled (=integrated) into the desired hose line. Operating pressure: 50 bar...