Pipe threads used in hydraulic circuits can be divided into two types: a) Jointing threads â are pipe threads for joints made pressure tight by sealing on the threads and are taper external and parallel or taper internal threads. The sealing effect is improved by using a jointing compound.
You can renew by mail using Form DS-82 if your most recent passport: 1  Is submitted with your application. 2  Is undamaged (other than normal wear and tear) 3  Was issued when you were age 16 or older.  Was issued within the last 15 years.
Renew your US Passport if: your passport is expired, or will expire within one year, and. you are able to submit your most recent US passport, and. your expired passport was issued within the past 15 years, and. your expired passport was issued when you were 16 years of age or older, and.