Tubing buckle type commonly divided into three are EU, NU and NewVam. These three buckle-type can be found in the tool shop, where the EU and NU separate from the button appearance is difficult to distinguish, it is 1.30 deduction type, but from the entire string can easily distinguish that represents EU external upset NU means no external upset. New Vam actually a trapezoidal buckle (buckle rectangular cross-section), it is not outside the thick band, so it is very easy to distinguish. The following describes three buckle detail type schematically.
1) EU (External upset)
EU external upset tubing is a buckle clasp type. On the shop shelves buckle joint understanding change process and the EU will find three kinds of related biano identity. Wherein EUE (External Upset End) represents external upset end, EUP (External Upset Pin) denotes an outer thickened male buckle, EUB (External Upset Box) indicates external upset female buckle.
2) NU (Non-upset) no external upset
NU is showing no external upset tubing connector. Except that no external upset and EU external difference is that in general there is a general NU 10 threads per inch, EU general 8 threads per inch. NUE which represents the non-thickened end or the end of the non-thickened. Similarly E represents End.
3) New VAM
This type is characterized buckle buckle substantially rectangular cross section, equally spaced pitch, little taper, no external upset. In the production workshop sleeve sleeve ends seen.
