You can determine pipe size byusing the sizing guides at the bottom of this page (a sizing chartis shownatthetopofeachpipeandpipefittingpage).However,forthemost accurate sizing, use a sizing gauge or kit (sold separately at right).Most straight (parallel) threads are measured the same way astapered threads.
The first Head of Ravenclaw House was the famous co-founder of Hogwarts, Rowena Ravenclaw, and the only other known Head of House was Filius Flitwick. As no Ravenclaw students are known to have returned to Hogwarts to teach, it is unknown who the next Head of House will be. 1  Rowena Ravenclaw - One of the four Hogwarts founders and founder of the Ravenclaw House.  Filius Flitwick - Head of Ravenclaw during Harry Potter's time at Hogwarts.
Ravenclaw is the house that champions those with a âready mindâ, yet it has lived a little in Gryffindor's shadow. But thereâs a lot more to Ravenclaw than its reputation for intelligence. Hereâs whyâ¦. Harry Potter and the Prisoner of Azkaban. 1. Ravenclaw is famous for welcoming eccentric people. Ravenclaw hasn't half produced a band of fascinating minds, many of which touched Harry's life. From Cho Chang and Moaning Myrtle, to the never-ending abstract charms of Luna Lovegood. Intensely intelligent, Ravenclaws are also unique and think outside the box.