Metal collar for central heating radiator housing valve dispenses with separate washer and stopper bush

摘要

A hand-regulated central heating valve has a housing (6) with a converging stepped bore (16), a shouldered (13) spindle (3) and an inward step (12). A hand wheel (1) is attached to the spindle and valve closure (10). The housing has a metal collar (14) towards the hand wheel. The collar has beading towards the spindle and which is supported by the spindle projection (15).