螺纹设计指南.pdfVIP

THREAD DESIGN GUIDE PIPE THREAD BASICS The following pages are a comprehensive guide to threads and their design. Our Thread Guide explains in detail: how to read a thread description, the difference between taper and parallel threads, common thread forms and much more. We hope this information will help you choose the best grease fitting for your application. DESIGNATION THREAD SERIES Thread series is the thread style of H1644 The H1644 fitting is classified as a given grease fitting. There are many a 1/8-27 PTF Special Extra Short different thread series and each has specific thread. This description can be attributes. For details on some of the most broken down into three distinct common thread series, see page 8. better to order in segments understand its components. THREAD SIZE Thread size is the nominal size of pipe that Thread Description: the fitting mates with. Originally, the size 1/8-27 PTF Spl. Extra Short referred to the inside diameter of the pipe at a time when pipes had very thick walls.