Non-return valve is mounted on Y-shaped leaf spring, bottom of Y forming mounting for attaching spring to valve casing and annular mounting for valve being mounted between its arms

摘要

The non-return valve is mounted on a Y-shaped leaf spring (14). The bottom (66) of the Y forms a mounting for attaching the spring to the valve casing and an annular mounting (84) for the valve is mounted between its arms (78, 80).