In a tubular deflector for pneumatic conveying installations of bulk material, a plug (4) comprising two flow passages (4.1, 4.2) which correspond to the openings of the connections (1a, 1b, 1c) on the housing (1 ), is rotatably mounted in a housing (1) by means of rotation pins (4.3, 4.4) engaging in the sockets (5) of two side covers (6, 7) of the housing (1) and one of which is positively connected to a rotary shaft (8). The rotating mechanism of the plug (4) is in particular constituted by an actuating cylinder (12) and a lever (11) which actuate the limit switches (14a, 14b), the assembly being enclosed in a chamber (7) which can sealingly be formed in one piece with one of the covers (6,7) of the housing (1). This side cover enclosing the valve actuation mechanism (4) can be placed at will on one or on the other side of the housing with a spacer disk (16) surrounding the pivot pin, so that the alignment of the flow channels (4.1) and (4.3) of the plug (4) with orifices ...
展开▼
