for Powders & Bulk Solids


Optional additions to Hosokawa Micron powder processing equipment.


ball segment valve

Hosokawa Micron has developed the unique Hosokawa ISEM ball segment valve as an in- and outlet valve for mixers and vacuum dryers. This valve is gas, dust and liquid tight, has no flow resistance when opened and is easy to clean and access. The full bore passage, the housing without static pockets and the sealing designs make it the best valve for applications where reliability of the valve sealing is a key issue.

The ISEM valve has proven its reliability under difficult conditions and is a very popular valve for process installations using vacuum or pressure in combination with solvents or toxic materials. The ISEM valve has also been adopted by other machine manufacturers as an addition to their own mixers, dryers and reactors.

The special design of the ISEM ball segment valve impresses with its full passage, its housing without hydrostatic pockets and the various sealing materials available. The ISEM ball segment valve is suitable for a wide variety of processes and systems under pressure conditions as well as under vacuum conditions where disruptions in product processing and cross-contamination must be avoided at all costs.

Thanks to their excellent cleanability, ISEM ball segment valves are very popular with OEMs in various industries such as food, chemical, nuclear, minerals and metals.

  • Charge and discharge valve for mixers, (vacuum) dryers, sterilisation systems, reactors, storage silos and piping for e.g. poisonous, corrosive and flammable products and processes.
  • Pre-dosing valves in packing systems, coarse metering of product flows.
  • Barrier valve in process installations.
  • Flip-flop valves for powder dosing in pressurized systems.
  • Key features
    • Full-bore product opening
    • Heavy duty design, long operating life time
    • No static pockets and dead zones where product can store, minimal clearances towards rotating parts possible
    • Seal access without taking the valve apart
    • Closable in dynamic product column
    • Dimensions: available from 75 to ~800 mm, ANSI and DIN
    • Design pressure: full vacuum to 6 bar(a)
    • Design temperature -20°C / 200°C (higher temperatures on request)
    • Design: ATEX zone 20-22 and 1-2 (powders and gasses)
  • Models

    ISEM ball segment valves are available in several sizes. A number of sizes with their typical characteristics are described below. Please note that these values are indicative only. Detailed information is available on request.

    Size[-]DN 75DN 125DN 150DN 200DN 250DN 300DN 350DN 400
    Length [mm] 200 665 676 709 742 917 943 978
    Width [mm]   442 467 578 643 790 845 938
    Height [mm] 200 205 225 290 325 405 430 470
    Fullbore [mm] 80 132 160 210 260 310 358 405

    Manual operation is available for ISEM valves up to DN 250.

    • All valves are also available with ANSI flanges
    • Over DN 400 on request

    Several different versions are available either in welded or cast execution:

    • Spherical
    • Cylindrical
    • Conical

    Other designs

    On request:
    • Actuator: manual, ISEM lever type, pneumatic / electrical actuators / high torque actuators provided with e.g. position governor.
    • Shape: sanitary design, easy cleaning, droplet shape, angled, double acting single drive, double acting twin drive, single body or welded design, "easy-removable" hinged design, customized designs possible!
    • Heating / cooling: heated/cooled valve housing and or ball segment.
    • Cleaning: manual, CIP, SIP, WIP.
    • Sealing modules: modular sealing system, process sealing static or dynamic (inflatable/retractable) for maximum lifetime and sealing properties.
    • Shaft sealing: lip-seals / o-ring / double sealing with inert gas barrier / leakage detection.
    • Materials of construction: available stainless steel types like AISI 304/316 (L/Ti), alloys etc.
    • Sealing materials: common available elastomers like viton, silicone, EPDM, FFKM and also PTFE, other FDA approved materials etc.

    Test units are available.


process vessel wall access / inspection door

Conical reactor vessels can be provided with an access door integrated into the vessel wall for easy access during inspection and cleaning. It offers safe and ergonomic access to the inside of the vessel and its design ensures optimum dust and water tightness with an FDA approved sealing.


process vessel sampler

The Hosokawa sampler allows sampling in reactors, blenders, tanks or dryers or similar vessels during operation. Sampling can be carried out under pressure, vacuum or elevated temperatures, without affecting the functionality of the sampler and the Hosokawa sampler fits into the process vessel without creating any dead spots. The Hosokawa sampler guarantees reliable sampling.

The sampler allows for full CIP as well as SIP. A simple click on the back of the handle is all that is required. The plunger can be used in different positions to enable cleaning fluid and steam to flow through the relevant parts of the sampler, ensuring thorough elimination of all contaminants. After cleaning and/or sterilisation, the sampler can be returned to its base position, ready for the next sample.

The latest version is fully compatible with Hosokawa's previous designs, allowing for easy replacement or upgrade.

  • Key features
    • Full vacuum and pressure rated up to 5 bar(g)
    • Process temperatures of up to 200ºC
    • Easy assembly and disassembly
    • FDA-approved construction materials
    • All parts that come into contact with product media are Ra < 0.2 µm W.No.1.4404 (AISI 316L)
  • Various flow positions
    • Position A: Sampler in Sample mode or CIP mode: base position
    • Position B: Sampler in Sample mode: sample flows into the sample container
    • Position C: Sampler in CIP mode: cleaning fluids can flow through the sampling area and the rear of the plunger, cleaning all parts of the sampler
    • Position D: Sampler in CIP mode: plunger moves forward to allow cleaning of the plunger's second seal


charging hopper

Conical mixers and dryers can be provided with a charging hopper for manual charging, which can be mounted on the vessel cover and is available in two sizes: for single and dual person operation. The standard model has been designed with a hinged access door, bolted grid and dust exhaust connection. A 'vibrating' grid and/or CIP nozzles are optional.


powder finisher / crusher

The Hosokawa Powder Finisher is a high capacity continuous de-agglomerator (crusher) that can be used to process bulk powder flows. It uses a high-speed rotor over a screen assembly to create collision forces and friction for efficient and fast de-agglomeration.

The base powder is dosed into the rotor chamber. As soon as the product reaches the rotor, it is forced through the sieve plate in the bottom section of the finisher at high speed. Coarser particles that cannot fit through the sieve are then broken by the impact of the rotor.

Depending on the characteristics of the powder (texture and grain size), the Powder Finisher can crush powders to sizes between 500 and 2000 microns. It can process powders at a rate of up to 40 m³/h. The Powder Finisher is available for testing.

  • Key features
    • Compact design
    • High capacity
    • Suitable for a large range of powders with different characteristics (fatty, brittle, etc)
    • Quiet and vibration-free operation
    • Easy disassembly for cleaning
    • Designs available in compliance with ATEX zone 2-22, cGMP and FDA
    • Custom-designs and mobile frames available on request
    • Suitable for use in pneumatic conveying systems
    • Different rotor speeds and seals available on request
  • Models

    The Hosokawa Powder Finisher is available in two main designs: the FD series, which is a heavy duty design with a bearing on both sides for high stability at high capacities, and the FS series with a bearing on just the side of the motor. This makes it easier to mount an inspection hatch, and simplifies inspection and cleaning, as well as easy removal of the sieve and rotor without having to extract the full finisher from the process line. The inspection hatch can be locked electrically or bolted.

    Dimensions standard finishers

    FD finisher FS Finisher
    FD Finisher FS Finisher


    L x B [mm] 200 x 200 300 x 300 580 x 300 400 x 400 770 x 400 195 x 245 295 x 936
    C [mm] 300 450 450 555 555 300 450
    D [mm] 150 225 225 277.5 277.5 150 225
    Motor powder [kW] 3 5.5 7.5 11 15 3 5.5
    Capacity [ton/h] 4 7 10 14 18 4 7


To learn more about our powder processing equipment and systems, contact us:



Hosokawa Micron B.V. is certified according to ISO 14001. Our certification covers all environmental themes of ISO 14001: air, soil, energy, waste, water, noise and hazardous substances. In addition, Hosawa Micron was awarded an EcoVadis Silver Medal for its sustainability achievements. EcoVadis determined that the company was among the top 15% of companies rated by EcoVadis in the special machinery industry.

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