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.
Or yet in wise old Ravenclaw,If you've a ready mind,Where those of wit and learning,Will always find their kind.. âThe Sorting Hat. Ravenclaw is one of the four Houses of Hogwarts School of Witchcraft and Wizardry, founded by Rowena Ravenclaw.Members of this house are characterised by their wit, learning, and wisdom. Its house colours are blue and bronze, and its symbol is an eagle.The house ghost, who in life was the daughter of the house's founder Rowena Ravenclaw, is the Grey Lady.r yet in wise old Ravenclaw,If you've a ready mind,Where those of wit and learning,Will always find their kind.. âThe Sorting Hat. Ravenclaw is one of the four Houses of Hogwarts School of Witchcraft and Wizardry, founded by Rowena Ravenclaw.