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.
In the Harry Potter novels, Ravenclaw is one of the four school houses that students can be placed in when they arrive at Hogwarts.Named for Rowena Ravenclaw, one of the original medieval founders of the school, its colors are blue and bronze and its heraldic device is an eagle.The defining traits of members of Ravenclaw House are intelligence, wit and wisdom.his page is about the meaning, origin and characteristic of the symbol, emblem, seal, sign, logo or flag: Ravenclaw House. The emblem of Ravenclaw House of Hogwarts School of Witchcraft and Wizardry.