Bernoulli's theorem applies to which type of flow

The Bernoulli's equation states that For a perfect incompressible liquid, flowing in a continuous stream, the total energy of a particle remains the same, while the particle moves from one point to another.
The Bernoulli's equation is applied to venturimeter, orifice meter and pitot tube.
Hence Bernoulli's theorem applies to incompressible, steady and non-viscous flow.