Regulator for underwater breathing apparatus - includes mouthpiece and discharge pipe both arranged on manifold, with non-return valve provided in region of connection between tube and manifold

摘要

The regulator comprises a box-like body (1) containing the device for regulating the admission of air from the first reducing stage. It has a mouthpiece (4) for breathing the air and with a discharge pipe (5) for the exhaled air, equipped with a non-return valve (113). The mouthpiece (4) and discharge pipe (5) are both arranged on a manifold (3) which is separate from the body (1) and the regulator and connected to it by means of a flexible tube (2). There is a non-return valve (313) provided in the region of the connection between the tube (2) and the manifold. The body (1) of the regulator being connected to the trunk of the diver by a suitable connection. The manifold is provided with a connection to a tube for surface breathing. There is provided, in the aperture of the manifold a valve for opening and closing the aperture, located close to the connection of the manifold to the tube (2) originating from the body of the regulator and close to the connection to the tube for surface breathing, so as to control the alternative used of one or other source of breathable air.