Fire protection deluge membrane valve with multiple closing apertures

A valve apparatus comprising:

• a body having a fluid inlet and a fluid outlet and a communication chamber between said fluid inlet and said fluid outlet, said communication chamber having a closure for occluding flow communication between said fluid inlet and said fluid outlet, said closure operable by a controller, said communication chamber divided into a first chamber and a second chamber by said closure, each of said first chamber and said second chamber being put into flow communication with said fluid inlet and said fluid outlet according to a parallel configuration in which said first chamber is connected to said fluid inlet by a first entry branch and in which said first chamber is connected to said fluid outlet by a first exit branch and in which said second chamber is connected to said fluid inlet by a second entry branch and in which said second chamber is connected to said fluid outlet by a second exit branch, said first chamber having a first closing element adapted to open and close flow, said second chamber having a second closing element adapted to open and close flow, said controller controlling said first and second closing elements;
• and
• a third closing element adapted to close at least one branch between said first entry branch, said first exit branch, said second entry branch and said second exit branch, said third closing element operable by said controller, said third closing element comprising a first closing tab that is hinged at a first hinging point, said first closing tab being movable by said controller between a first position and a second position and third position, said first position closing said first entry branch while keeping said second entry branch open, said second position closing said second entry branch while keeping said first entry branch open, said third position simultaneously keeping said first exit branch and said second exit branch open.