Abstract: A valve or tap for fluids comprises a body, a revolving shutter in the body between a closing position and opening position, and control mechanism for rotating the shutter. The control mechanism can be moved axially between a raised position in which it is locked angularly to the body of the valve and a lowered position in which it is free to rotate. The control mechanism may be normally held in a raised position by an elastic part. The control mechanism may include a first pin joined to the shutter and a second pin constrained in an angular direction to the first pin. The second pin may be movable in an axial direction in relation to the first pin between a raised position for locking to the body and a lowered position for unlocking from the body.

Abstract: The invention relates to a valve or tap for fluids, comprising a body, a revolving shutter in said body between a closing position and opening position, and control means for rotating said shutter, wherein said control means can be moved axially between a raised position in which they are locked angularly to the body of the valve and a lowered position in which they are free to rotate, said means being normally held in a raised position by an elastic part.

Abstract: The present invention pertains to a valve or faucet for fluids, comprising a body, a stop valve rotating in said body between a closing position and an opening position, and control means for the rotation of said stop valve, in which the said control means are axially movable between a raised position in which they are locked at an angle to the body of the valve and a lowered position in which they are free to rotate, said means being usually kept in the raised position by an elastic element.