Bursting Discs, Burst Indication, Static Mixers, Heat Exchanger.

Degree of separation – also known as separation rate, is a term from process engineering describing the efficiency of a separating process. The degree of separation is defined as the ratio of the volume separated in a separator to the volume of material to be separated entering the separator, or the respective concentrations set out in the relative weight [kg/kg]. If degrees of separation are specified they always refer to the diameter of the minimum droplet size. STRIKO demisters usually achieve separation degrees of over 99%, where the degree of separation depends on the application, the material, on speed and packing density as well as on the wire diameter.

Demisters – Demisters are liquid or aerosol separators for a wide range of applications, available with or without casing. They are used for separating drops of liquid from flowing, gaseous media such as air or process gases.

Knitted wire mesh demisters are also used as coalescence separators (oil separators) which separate two liquids of differing densities.

Design code – The design code refers to the design standard of pressure equipment. The pressure equipment from STRIKO process technology are manufactured in accordance with the applicable regulations and provisions. In Europe, these are the pressure equipment directive PED, German abbreviation DGRL 2014/68/EU with the policies AD 2000 and EN 13445 and in America and Asia the ASME Boiler and Pressure Vessel Code. The AD 2000 policy currently is the most frequently requested policy. With the introduction of the harmonised norm EN 13445 it will be found more and more frequently as it is intended to be the successor to the AD 2000. The ASME code can be divided into two categories: ASME Section VIII Division 1 for pressure vessels and ASME B31.3 for piping.

Design data – In the field of technology, this term refers to the preliminary information required in order to be able to build or design equipment or components in such a manner that they ultimately fulfil their specified purpose. Design data can refer to all aspects of the draft, design, manufacturing, operation or deployment. For the design of STRIKO bursting discs, data for instance such as the installation location, the medium to be protected, the working, burst and back pressure, the work temperature on the bursting disc or the type of load situation all play a role. For static mixers made by STRIKO on the other hand, parameters such as the medium applied, the fluid group, the steam pressure, volume flow, density and dynamic viscosity are just some of the design data initially required from the customer in order to be able to design the right type of mixer for the respective application. It is only after decisions about the layout, the materials to be used and the design have been made that geometrical quantities are defined as part of the calculations or the dimensioning.

Design pressure – The pressure equipment directive (PED, German abbreviation DGRL) classifies pressure equipment into various categories depending on the pressure equipment volume V respectively the nominal size DN for piping and the maximum permissible pressure PS. Here, the maximum permissible operating pressure PS according to art. 1 para. 2 no. 2.3 PED (resp. German DGRL) is defined as “the highest pressure specified by the manufacturer for which the pressure equipment is designed”. As a manufacturer of pressure equipment STRIKO process technology is also obligated to specify the design pressure of its pressure equipment on the nameplate.

Design standard – STRIKO process technology provides new and existing customers with special forms for inquiry specification in which the customer, alongside the general information, also specifies the design data and the design standard for the STRIKO product requested. The design standards the client can choose from include the pressure equipment directive (PED, German abbreviation DGRL, AD 2000), a certification in accordance with the ASME Code (leading technical guideline for the construction, manufacturing and testing of pressure equipment and pressure-bearing components of the ‘American Society of Mechanical Engineers’) or others as for instance DIN EN 13445.

Documentation, technical – A technical documentation, structured logically and clearly, includes all documents describing a technical product. It is also referred to as product documentation. All relevant information is included here systematically and clearly allocated to the documented product usually using name and number systems. The objectives of a technical documentation among other things are to provide information and instructions to a defined target group but also to protect the liability of the manufacturer. It usually draws attention to all aspects of the product from the development right up to its disposal. Technical documentations use a product-specific nomenclature and often a highly specialised vocabulary. For all STRIKO pressure equipment a technical documentation is compiled. It consists of the declaration of conformity, the technical drawing, material certificates and operating instructions, along with any relevant inspection and test certificates.

Drop size – The size of the radius or diameter of a usually small bulk liquid (μm) which ideally is spherical in shape. Only if the drop has been separated from a larger bulk liquid a drop shape is quickly formed as an unstable state. Drops are separated from the environment by an interphase and their shape is significantly defined by the interphase tension. Under the conditions of the Earth’s gravity, drops, due to their relatively low forces resulting from the interphase tension, are restricted to a great ratio between volume and surface, and so they are of small size which is normally in the millimetre range. STRIKO demisters as knitted wires can be used for drop sizes of approximately 1 µm to 100/120 µm, whereby the separation of larger drops poses no big problem as these simply follow the principle of inertial separation.