Plastics valve for irrigation installations

摘要

The valve consists of an exterior part with a cavity into which fits an interior part with a channel between inlet and outlet when in the right position. The upper edge of the exterior part carries a circular stop whose interior is in a plane perpendicular to the axis of rotation of the interior part, and whose upper part is on top of a conical or spherical surface. The upper part of the interior part has a vertical extension with a member directed inwards. Both interior and exterior portions of the valve are made as single parts.