This union nut (female threads) is designed to be used with a cutting ring or a compression ring fitting. The nut has a M14 x 1.5 threads, making it suitable for an outer pipe diameter of 6 mm. To install, the union nut should be slid over the pipe first. Then, the pipe can be inserted into the cutting ring or a compression ring fitting before tightening the union nut. This will ensure a leak-free seal. Fitting is made out of stainless steel 316 ti (1.4571). It has an S (heavy) load class, in accordance with the DIN 2353. It is made in accordance with the DIN EN ISO 8434-1 (DIN 2353) and the DIN 3870 standards.
UNL series
The UNL series includes union nuts designed for compression and/or cutting ring fittings. With threads from M8 x 1 to M52 x 2, they are ideal for pipe diameters ranging from 4 to 42 mm. Made out of brass, steel, or stainless steel 316 Ti (1.4571) so there is always a material suitable for your application. DIN 2353 load classes range from LL (very light) to S (heavy).
Specifications
Connection size : M14 x 1.5
Outer diameter (mm) : 6
Connection type : Inner thread metric
Material : Stainless steel
Load class (DIN 2353) : S (heavy)
Standard : DIN EN ISO 8434-1 (DIN 2353),DIN 3870
Material quality : Stainless steel 321 (1.4541)
Size of threaded connection [inch] : M14 x 1.5

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