Further information for Erico HD heavy duty pipe clamp 577033 - Caddy HDI018
The fillet welded nut has flats for wrenches. Easy-open flange for pipe sizes up to 4'. Noise reduction category II according to DIN EN ISO 3822-1. Complies with DIN 4109 for sound insulation design. In accordance with DIN EN 13501-1, the fire reaction is classified as E.