Thermal Vacuum Reactors & Pressure Vessels
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Robust solutions for high value products

Precise temperature and pressure control are critical in the manufacturing processes of complex products including:

  • Pharmaceuticals
  • Healthcare products
  • Speciality chemicals
  • Premium foods

These processes require integrated systems that are designed with the process in mind and factors include:

  • Process validation – support IQ, OQ & PQ
  • Multi-product flexibility
  • Batch size flexibility
  • Minimise cycle time and clean down
  • Cycling durability at extremes of pressure and temperature

Greaves engineers work closely with our customers process experts to understand their challenges and ambitions in order to design the most appropriate manufacturing system for their needs. Key considerations include:

  • Heat transfer and cooling capacity
  • High viscosity flow and mixing tool combination
  • Fatigue analysis and cyclic operations to maximise lifespan
  • Jacket type and insulation for optimum heating/cooling time
  • Rapid vacuum cycle (optimise ullage)
  • Hazardous substances (ATEX, purging system)
  • Corrosive / abrasive substances (corrosion allowances, material selection)
  • Shaft seal specification for reliability/durability
  • Materials addition and product discharge (vacuum, pressure & gravimetric)


Quality & accreditation:

  • Radiography & ultrasonic
  • Dye penetration inspection
  • Magnetic particle inspection
  • Boroscope inspection
  • Hydrostatic pressure testing


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Greaves Vessels - because results matter