Removability of the mixing elements – Static mixers from STRIKO guarantee a continuous operation in closed piping systems. They do not contain any moving parts but are fitted with mixing element chains, virtually all of which work wear-free. Mixing elements from STRIKO are also used in heat exchangers. Depending on the area of application various mixing elements are used. All mixer variants from STRIKO are maintenance-free and can be cleaned in-line. Furthermore, the static mixing elements from STRIKO can also be designed so that they are removable in order to be able to clean them better. Depending on the specific design this may require an additional stop ring, the design of which is determined over the course of the drawing release.
Metallic, convex bursting disc, where the pressure to be safeguarded acts against the bulge. Reverse acting rupture discs are fitted in the standard holder SHU or in the pre-loaded holder SHU Pro between flanges. They are particularly suitable for mid- to high-pulsating working pressures.
STRIKO offers the SU-R, SU-C and SU-X model ranges in various high-grade steels and special materials such as Inconel or Hastelloy®. STRIKO reverse acting rupture discs also dispose of a fragment-free area characteristic, they are vacuum-resistant, can be used in combination with safety valves and are typically fitted with a 3D-label.
Reynolds number – A dimensionless figure (symbol: Re) named after the physicist Osborne Reynolds. It is used in fluid mechanics and can be understood as the ratio between inertial and viscous forces. It has been shown that the turbulence characteristics of geometrically similar bodies are identical when the Reynolds number remains constant. This characteristic allows for instance realistic model tests in the wind and water channel.
The Reynolds number is defined by Re = ρ ⋅ v ⋅ d / η = v ⋅ d / ν
Where ρ is the density of the liquid, v the flow velocity of the liquid with respect to the body and d the characteristic length of the body. The characteristic length, also known as reference length, is defined or must be defined for each problem. For flow bodies, the length of the body in the direction of the flow is usually chosen. The kinematic viscosity v of the liquid is differentiated from the dynamic viscosity η = ν ⋅ ρ by the factor ρ.
If the Reynolds number exceeds a (problem-dependent) critical value Re crit, a so far laminar flow becomes prone to even the smallest disturbances. In accordance, for Re > Re crit, a change from laminar to turbulent flow must be calculated.