Jacket: Design Temperature -20°C to 200°C

Component Specifications

Definition

A jacket is an external shell or envelope that encloses the main body of a crystallization vessel, creating an annular space through which heating or cooling media (such as steam, hot water, or chilled brine) circulates to precisely control the temperature of the vessel's contents, facilitating the crystallization process by managing supersaturation, nucleation, and crystal growth rates.

Working Principle

The jacket operates on the principle of convective heat transfer. A thermal fluid is pumped through the annular space between the vessel wall and the jacket shell. Heat exchange occurs across the vessel wall, either adding heat to maintain temperature or remove heat to cool the process fluid inside, enabling controlled crystallization by managing temperature gradients and heat removal rates.

Materials

Typically constructed from corrosion-resistant materials: 316L stainless steel (most common for pharmaceutical/food), carbon steel with protective linings (for chemical processes), or Hastelloy/C276 for highly corrosive environments. Material selection depends on process fluid compatibility, temperature range (-20°C to 200°C), and pressure requirements (typically 3-10 bar).

Technical Parameters

Parameter	Typical range	Notes & selection driver
Jacket Type	Half-pipe coil, dimple jacket, conventional annular
Surface Finish	Ra ≤ 0.8 μm (for sanitary applications)
Connection Size	DN50-DN100 (inlet/outlet)
Design Pressure	6 bar (standard), 10 bar (high-pressure)
Design Temperature	-20°C to 200°C
Heat Transfer Area	5-50 m² (varies with vessel size)

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 2852, DIN 28136, ASME BPE

Parent Products

This component is used in the following industrial products

Crystallization Vessel

A specialized vessel designed to facilitate the controlled formation and growth of crystals from a solution or melt within an industrial process.

View Product Details

Mixing Reactor Vessel

A sealed vessel for mixing and reacting chemicals in industrial neutralization processes.

View Product Details

Engineering Analysis

Risks & Mitigation

Thermal stress cracking
Corrosion from heat transfer media
Insufficient heat transfer leading to poor crystallization
Pressure vessel failure
Fluid leakage between jacket and vessel

FMEA Triads

Trigger: Corrosion from aggressive heat transfer fluids
Failure: Jacket wall perforation leading to media contamination
Mitigation: Use corrosion-resistant materials (316L SS, Hastelloy), implement regular thickness testing, and maintain proper fluid chemistry control

Trigger: Thermal cycling stress
Failure: Fatigue cracking at weld joints
Mitigation: Design with expansion joints, use stress-relieved welds, implement controlled heating/cooling rates, and conduct regular NDT inspections

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±0.5°C temperature control, ±2% heat transfer efficiency

Test Method

Hydrostatic pressure testing per ASME Section VIII, thermal performance validation via heat transfer coefficient measurement, leak testing with helium mass spectrometry

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

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CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Jacket

Manufacturer profiles associated with Jacket.

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Frequently Asked Questions

What are the main types of jackets used in crystallization vessels?

Three primary types: conventional annular jackets (simple design, lower efficiency), half-pipe coil jackets (high pressure capability, good heat transfer), and dimple jackets (excellent heat transfer, lightweight construction). Selection depends on process requirements and vessel design.

How does jacket design affect crystallization efficiency?

Proper jacket design ensures uniform heat transfer, preventing hot/cold spots that cause inconsistent crystal size distribution. Efficient jackets maintain precise temperature control during nucleation and growth phases, optimizing crystal purity, yield, and morphology.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Jacket