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Fluidyne Instruments Pvt. Ltd.Static Mixer Element Types & Design
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Fluidyne Instruments Pvt. Ltd.Static Mixer Element

Types & Design

Basic segment shapes of static mixers
Inside the FLUIDYNE static mixer design basic segment shapes are used; the S-shape orScrew/Spiral/Helical shape, the X-shape and Multiple X Shape. More segments form one strand of elements that are placed inside a tube or pipe. The attachment of the element strands can take place by means of high-quality argon welding.Elementscan be dismantled easily.

Characteristics of different elements
Each element has process specific characteristics and depending on the process and the flow diameter a certain type of element will be chosen. Below you will find a short explanation of the segment shapes. You can contact FLUIDYNE for more information about the segment shapes that have been used in the static mixers.


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SMS Mixing Element

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Technical Specification:
  • Standard screw, helical or spiral shaped mixing element.
  • For static mixers with a diameter of up to maximum 160 mm
  • Suitable for basic mixing applications, liquids and gas.
  • Suitable for laminar flows
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SMQ Mixing Element

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Technical Specification:
  • Q- shaped mixing element design
  • Performances equal to PMS
  • For static mixers with a diameter of approx. 160 mm to infinity
  • Suitable for basic mixing applications, liquids and gas.
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SMX - Standard Mixing Elements

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Technical Specification:
  • Standard X-crossed type mixing element design
  • Suitable for short mixing lengths
  • Suitable for turbulent flow
  • Suitable for static mixers of all sizes
  • Relative high pressure drop and not totally free from blind spots
  • Very suitable for high viscosity mixing
  • Very good mixing and dispersion – for a very wide range of viscosity
  • Reduction of product degradation
  • Suitable for the mixing of sensitive products, with minimal friction tension
  • No deposits or accumulation of materials because of cross mixing.
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SMX-M Multiple Mixing Elements

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Technical Specification:
  • X-crossed type mixing element design
  • Suitable for short mixing lengths
  • Suitable for static mixers of all sizes
  • Relative high pressure drop and not totally free from blind spots
  • Very suitable for high viscosity mixing
  • Very good mixing and dispersion – for a very wide range of viscosity
  • Reduction of product degradation
  • Provides for a compact design of the static mixer
  • Suitable for the mixing of sensitive products, with minimal friction tension
  • No deposits or accumulation of materials because of cross mixing.
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SMV Mixing Element

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Technical Specification:
  • V shaped mixing element design
  • For static mixers with a diameter of approx. 50 mm to infinity
  • Very suitable for mixing gases or with large contact surface, mostly suitable for gas, but also for liquids
  • Suitable for large tube diameters
  • Suitable for short mixing lengths
  • Minimal space required for mixing or dispersion
  • Quick mass transfer through continuous renewal of the interfaces.

Elements provide turbulent or laminar mixing
Depending on the element chosen, mixing can be divided into turbulent and laminar. In case of turbulent mixing we are talking about mixing substances where the viscosity is watery or slightly higher. The flow speeds are relatively high. Radial mixing occurs relatively often, and a technical homogeneous mixture has already been obtained in a short section . Laminar mixing occurs with substances with a high to very high viscosity. The speeds are low and the pressure drops are high. Radial mixing hardly ever occurs. The mixing effects are concentrated around the transition of the mixing elements. There the two layers are forced to mix and then forced into each other so that four layers occur, and so on. At the menu item 'operating principle' you can read more about turbulent and laminar mixing.

Dosing Ports or Injectors
In processes in which the mixing ratios are wide apart from each other or in which physical material properties vary greatly, it is important to add the additive to the main flow via an injection unit. One possibility could be a centre line injection, but also injectors in the shape of a clarinet are interesting; the many possibilities can also be supplied as a demountable version . The advantage of an injector is that the additive is injected into the main flow at an ideal point, before the first mixing element, so that the mixing action takes place significantly more efficiently. FLUIDYNE can advise you in choosing the most ideal version for your application.

Product offer for static mixers
  • (Low temperature) carbon steel and low alloyed steel, for example A106 Gr. B, A333 Gr. 6, A335 Gr. P11, etc.
  • Stainless steel, e.g. 316L(1.4404), 304L(1.4307), 321(1.4541), 316Ti (1.4571), etc.
  • PTFE or glass (glazed) covered carbon steel or stainless steel
  • Steel with fusion bond coatings or halar coating
  • Duplex & super duplex (1.4462)
  • Exotic materials such as: alloys, Hastelloy®, titanium, nickel, Incoloy®, alloys
  • Glass fibre reinforced synthetic materials (GRP) with a chemical barrier of uPVC, cPVC, PE covering
  • Synthetic materials, e.g. uPVC, cPVC, PP, HDPE, PVDF, PTFE
  • Silicate glass

Surface finish static mixers
The surface of the static mixers can be finished, treated or cleaned to specification. A number of treatment techniques are

Process Connection- flanges and connectors The static mixers can be provided with various types of flanges and connectors. The connection will depend on the process, the tube diameter and the desired seal.
Connector type (more available on request).
  • Bevelled weld ends ASME B16.25
  • EN1092‐1 flanges. All types and pressure classes
  • ASME B16.5, B16.47 flanges. All types and pressure classes
  • Loose flanges and sleeves for plastic construction materials
  • Sanitary flanges, e.g. DIN11851, bio-connect, tri‐clamps, aseptic DIN11864, SMS
  • Thread ends, e.g. union joints, Swagelok®
  • Triclover Fittings
  • Dairy Fittings
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