The 9th August 2019 , our NPTF thread Fitting was delivery to our customer . This kind of fitting could used in more critical work condition and do not need to seal . This kind fitting also need high accuracy process .Qingdao Xiangchengde Machine Co.,ltd (xcd Machinery ) are professional manufacturer in NPTF thread , our professional technician and good equipment could meet requirement by the customer for this high qccuracy fitting.
 
NPT threads are used in mechanical or low-pressure air or fluid applications and the use of sealant or tape is adequate to prevent leakage. NPTF taps are made to different specifications so that in addition to sealing on the flanks of the thread like the NPT form, the threads also seal at the joining of the crest and root of the assembled threads eliminating the possibility of leakage. The use of an NPTF marked tap for NPT applications is appropriate, however NPT taps cannot be used for dry seal (NPTF). When visually comparing these two styles in the same size they look identical. Both have a ¾” taper in 12 inches of length and at the top of a threaded hole the pitch diameters are the same, the variation is in the crest and root specifications of the NPTF tap.


Qingdao Xiangchengde Machinery Co.,ltd
+86 130 4503 5930
kendyxcd@163.com
Yiwu Town, Jimo ,Qingdao China
266200
web size : www.xcdmachinery.com