Where the owner name is not linked, that owner no longer owns the brand
Technical Examples
A flow measuring valve device (1) for fluid, the flow measuring valve (1) comprising a first restriction (48) and a second restriction (76) connected in series with the first restriction (48), the flow rates of said restrictions (48, 76) being unequally dependent on the viscosity of the fluid, and a method for determining the viscosity of the fluid by means of the device.