Squeeze valve for use in dental instrument, has support pipe provided with shell units with cross section, where shell units are arranged in direction in valve unit about wall with respect to axis of valve unit in radial direction

摘要

The valve (1) has a valve housing (2), in which a tubular-shape valve unit (14) with a flexible circumferential wall (13) extends between two fluid ports. The wall is squeezed together transverse to a longitudinal axis of the valve unit to change a flow cross section, and a support pipe (18) is limited by a radial expansion. The support pipe has shell units (26, 27) that are provided with an arched cross section and are arranged in a circumferential direction in the valve unit about the wall with respect to the longitudinal axis of the valve unit in a radial direction.