Cable protection conduit and fitting systems Cable protection conduit Murrflex Conduit connection bulkhead fittings Cable protection conduit holders Conduit couplings / conduit distributors / Protectors Cable fittings Accessories Tools Punching tools Details and technical information Cable drag chain systems Cable entry - and cable holding systems Labeling systems Cables Automation and Robotic Equipment Systems Advise and technical information In this area you can find useful tips and technical information relating to Murrplastik products. Tightening torque for conduit fittings Recommended tightening torque for connecting thread. Conduit fitting m-top, m-tec und m-fix Thread dimensions for metric threads (according to EN 60423) Thread dimensions for Pg threads (according to EN 40430) Thread dimensions for NPT threads ANSI B 1.20.1 Installation dimensions and widths across flats Protection classes according to EN 60529 The protective systems are indicated by a marking consisting of the two constant distinguishing marks IP and index for the protective system, e.g. IP 54.