Dec Group / Dietrich Engineering Consultants — Contained Powder Handling & Pharmaceutical Isolators
Global technical selection of contained powder transfer systems, precision dosing valves, drum discharge stations, and high-containment isolators from Dec Group / Dietrich Engineering Consultants (Switzerland). Complete turnkey processing solutions for pharmaceutical and fine chemical plants from SpareX.
Dense-Phase Vacuum Powder Transfer Systems PTS
The patented PTS vacuum dense-phase system moves dry and wet powders at 1–3 m/s. It replaces gravity reactor charging with dense-phase transfer up to 150 kg powder/kg gas. Flat membrane filters in PTFE and 316L steel deliver verified OEB 5 containment.
- Standard series PTS 50 to PTS 400 spanning 200 to 12,000 l/h throughput
- Gentle dense-phase velocity under 1–3 m/s avoiding particle segregation
- Explosion containment for MIE under 1 mJ compliant with ATEX zone 0/20
- Flat membrane filtration elements, CIP/SIP wash heads, and FFKM seals
DosiValve Precision Dosing Valves & Micro PTS Feeders
DosiValve systems enable precision gravimetric and volumetric dosing for cohesive powders. Micro PTS modules perform cyclic micro-dispensing from milligrams into reactors and vials. Pneumatic actuators and USP Class VI seats ensure reproducible dosing integrity.
- High batch dosing precision within ±0.5% for active pharmaceutical ingredients
- Micro PTS technology engineered for cleanroom and laboratory micro-batches
- Gentle pneumatic shut-off eliminating mechanical attrition and clogging
- Interchangeable valve seats, stem seals, actuator kits, and load cell links
DCS Drum Containment Systems & Isocharge Transfer Stations
DCS stations deliver contained opening, discharging, and filling of drums with potent compounds rated OEB 4 and 5. An integrated glove port chamber with inflatable sealing bladders stops dust escape. The system couples directly with PTS suction lances and scales.
- Rigorous OEB 5 containment performance restricting emissions below 1 µg/m³
- Inflatable elastomeric docking seals fitting drum diameters 300 to 650 mm
- Direct process coupling with PTS suction lances and loss-in-weight scales
- Replacement isolator gloves, inflatable bladders, and push-push HEPA filters
High-Containment Pharmaceutical Isolators OEB 4 / OEB 5
Dec Group isolators provide enclosed barrier containment for dispensing, synthesis, and filling of hazardous APIs. Welded 316L chambers incorporate push-push HEPA H14 filters and BioDec H2O2 decontamination. All suites comply with strict cGMP and FDA standards.
- Polished 316L stainless steel chambers with surface finish Ra under 0.4 µm
- Integrated BioDec vaporized hydrogen peroxide decontamination cycle
- Push-push safe-change HEPA/ULPA exhaust filtration without breaking barrier
- Replacement port gloves, silicone door gaskets, and differential transmitters
MC DecJet Spiral Jet Mills & DecMill Particle Systems
MC DecJet spiral jet mills achieve micron-level particle reduction down to d90 under 2–5 microns without thermal decay. Milling chambers with tungsten carbide or zirconia linings prevent wear. Systems integrate seamlessly into Dec containment isolators.
- Submicron grinding capability yielding uniform d90 distributions below 2–5 µm
- Scale-up lineup from laboratory MC DecJet 30 to production MC DecJet 400
- No rotating mechanical components, avoiding frictional thermal product decay
- Replaceable Venturi injectors, ceramic chamber liners, and cyclone collection kits
PTS Batchmixer Pneumatic Blending Systems & MPTS Blenders
PTS Batchmixer systems achieve homogeneous dry powder blending via pulsed gas kinematics without internal moving blades. This gentle pneumatic action eliminates frictional heat decay and particle fracturing in APIs. Electropolished 316L chambers enable automated CIP/SIP cycles.
- Mechanical-free pneumatic blending eliminating particle attrition and shear
- Rapid batch homogenization completed within minutes for potent compounds
- Total dust containment during subsequent transfer to tablet presses and drums
- Replacement pulsed aeration nozzles, purge valves, and CIP spray assemblies
Contained Powder Handling & Process Engineering Solutions by Dec Group
Swiss engineering manufacturer Dec Group (Dietrich Engineering Consultants sa) provides advanced process equipment engineered for safe, contained transfer and processing of bulk powders, active ingredients, and fine chemicals.
The portfolio prioritizes total operator safety and complete contamination prevention.
The engineering platform encompasses patented PTS dense-phase vacuum conveying, DosiValve precision gravimetric/volumetric metering valves, Micro PTS micro-batch dispensers, DCS drum containment stations, MC DecJet spiral jet mills, and OEB 4 / OEB 5 barrier isolators compliant with international cGMP and FDA requirements.
Technical Sizing Criteria for PTS Conveying and Containment Systems
Selecting the right Dec Group PTS configuration depends on bulk density, particle size distribution, moisture, cohesive behavior, and hourly throughput requirements.
The standard range scales from PTS 50 (up to 200 l/h) for pilot lines to heavy-duty PTS 400 (up to 12,000 l/h) for full-scale commercial reactors.
For hazardous powders with minimum ignition energy below 1 mJ, PTS systems purge atmospheric oxygen before material enters closed process vessels, fulfilling strict ATEX zone 0/20 compliance.
SpareX provides engineering integration, piping layout calculations, and international equipment support for turnkey installations worldwide.
Dec Group / Dietrich Engineering Consultants and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of Dec Group / Dietrich Engineering Consultants and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.
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Documents and sources
- Dec Group company profile — contained powder handling technologies and history
- Official Dec Group locations — Switzerland headquarters and Dec China in Shanghai
- PTS Powder Transfer System — vacuum dense-phase pneumatic powder conveying
- Official PTS brochure — technical specifications for sizes PTS 50 through PTS 400
- Precision powder dosing — DosiValve dosing valves and Micro PTS microdosing modules
- Dec containment isolators — pharmaceutical barrier systems rated OEB 4 and OEB 5
- Dec Group aftersales services — scheduled maintenance, installation audits, and troubleshooting
