Block valve for vacuum line or network with emergency input

Details Block valve for vacuum line or network with emergency input Block valve for vacuum line or network with emergency input

F - Mech Eng,Light,Heat,Weapons

16

K

F16K 11/08 (2006.01) F17D 3/00 (2006.01)

Patent

CA 2635506

Block valve with emergency input, in particular for vacuum line or network, comprising a valve body (1) traversed by a main fluid passage (2) between a first orifice (2a) located at an upstream end of the said main passage (2) and a second orifice (2b) located at a downstream end of the said main passage (2). The valve body (1) further comprises a control device comprising a member (5) operable manually by an operator and movable between at least an open position in which the said control device (5, 17, 14) allows fluid communication between the first and second orifices (2a, 2b), and a closed position in which the said control device (5, 17, 14) interrupts any fluid communication between these orifices (2a, 2b). An auxiliary fluid passage (22) is fluidly connected via its upstream end to the said main passage (2) between the control device (5) and the first orifice (2a), and comprises a third orifice (2c) at its downstream end.

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