Brass Fittings for Mdpe Pipe with Internal Compression Nut

For your installation needs with polyethylene tube rmmcia is offering a range of brass fittings for polyethylene pipe with internal thread in versions coupling - coupling to connect tube with tube and coupling - threading for the connection of tube with threaded fittings. This allows for a diverse range of connection options for tube and accessories.

These brass fittings are used for connecting high and low density polyethylene tube. In this family the union with the polyethylene pipe achieves the sealing with an O-ring compressed against the tube, while a gripping ring clamps slightly against it to prevent tearing. The tightening action is achieved with a clamping part, which is threaded on the inside of the fitting body, giving the name to the family: with internal compression nut. Typical fields of application are for irrigation, for drinking water supply, in sanitary systems and for the conveyance of fuel gases.

The references on each article are listed ordered by their size inches or fractions on the threaded end, and at the ends coupled to the tube in millimetres with correspondence with the outside diameter of the polyethylene tube.

The brass used on their manufacture is conforming to CW617N UNE-EN 12165 for hot forged parts (nut and body), brass CW614N UNE-EN 12164 for parts machined from bar (clamp and insert) and EPDM PEROX 70 UNE-EN 681-1 for the O-ring seal.

The design and fabrication of these compression fittings for polyethylene pipe is made, among others, following UNE-EN 1254-3 that refers to compression fittings for plastic pipes, UNE-EN 12201-3 about the use of accessories in conveyance systems in plastic materials (polyethylene) for water transport and UNE-EN ISO 228 for specifications of threaded ends. In addition, rmmcia manufactures and markets their products through its ISO 9001 certified plant to ensure the quality and an optimum service to their customers.