Description
Technical Specifications
| Parameter | Specification |
| Equipment Name | Double Jacketed Tank |
| Model Series | TEW-DJT Series |
| Capacity Range | 50 Ltr. to 2500 Ltr. |
| Type | Vertical / Horizontal |
| Vessel Shape | Cylindrical |
| Product Contact Material | SS 304 / SS 316 / SS 316L |
| Jacket Material | SS 304 / SS 316 |
| Non-Contact Parts | SS 304 / suitable SS grade |
| Product Vessel | Single SS inner vessel with external jacket |
| Jacket Type | Full / Partial Jacket |
| Jacket Medium | Hot Water / Chilled Water / Steam / Thermal Fluid |
| Heating / Cooling | Jacket circulation system |
| Top Cover | Fixed / Removable / Hinged |
| Bottom Design | Flat / Dished / Conical / Sloped |
| Product Outlet | Bottom / Side outlet as required |
| Inlet Connection | Sanitary / Customized |
| Outlet Connection | Sanitary / Customized |
| Drain Connection | Provided |
| Jacket Inlet | Provided |
| Jacket Outlet | Provided |
| Jacket Drain/Vent | As required |
| Pressure Gauge | Optional |
| Temperature Indicator | Optional |
| Temperature Sensor | Optional |
| Level Indicator | Optional |
| Sight Glass | Optional |
| Manhole | Optional |
| Agitator | Optional |
| CIP Arrangement | Optional |
| Insulation | Optional |
| External Cladding | SS 304 / SS 316 |
| Support | Legs / Skirt / Customized |
| Surface Finish | Smooth / Buff / Mirror Polish |
| Welding | TIG welded |
| Weld Finish | Ground, dressed and polished |
| Design | GMP-oriented |
| Customization | Available |
Available Capacities
| Model | Nominal Capacity |
| TEW-DJT-50 | 50 Ltr. |
| TEW-DJT-100 | 100 Ltr. |
| TEW-DJT-200 | 200 Ltr. |
| TEW-DJT-300 | 300 Ltr. |
| TEW-DJT-500 | 500 Ltr. |
| TEW-DJT-750 | 750 Ltr. |
| TEW-DJT-1000 | 1000 Ltr. |
| TEW-DJT-1500 | 1500 Ltr. |
| TEW-DJT-2000 | 2000 Ltr. |
| TEW-DJT-2500 | 2500 Ltr. |
Other intermediate and customized capacities can be manufactured according to customer requirements.
Construction Details
- Inner Product Vessel
The inner vessel is fabricated from high-quality stainless steel and serves as the product-contact chamber. The material can be selected as SS 304, SS 316 or SS 316L depending on the formulation and required corrosion resistance.
The internal surface can be supplied with a smooth hygienic finish to minimize product retention and facilitate cleaning.
- Double Jacket
The external jacket forms a controlled utility chamber around the product vessel.
The jacket can be designed for:
- Hot water circulation
- Chilled water circulation
- Steam heating
- Thermal fluid circulation
The jacket configuration and heat-transfer area are selected according to the required heating/cooling duty.
- Jacket Connections
Suitable connections are provided for utility circulation:
- Jacket inlet
- Jacket outlet
- Drain
- Vent
- Pressure gauge connection
- Safety/relief arrangement where required
The utility connections can be customized according to the customer’s heating or cooling system.
- Top Cover
The vessel can be supplied with a fixed, removable or hinged top cover.
The cover can incorporate:
- Product charging inlet
- Manhole
- Agitator mounting
- Spray ball
- Vent
- Level sensor
- Temperature sensor
- Additional process connections
- Bottom Design
The bottom configuration can be selected according to the application:
- Flat bottom
- Dished bottom
- Conical bottom
- Sloped bottom
A sloped or conical bottom is recommended where improved drainage and minimum product retention are required.
Heating & Cooling System
The double jacket provides indirect heating or cooling of the product.
Heating
The tank can be heated using:
- Hot water
- Steam
- Thermal oil/thermal fluid
Cooling
The tank can be cooled using:
- Chilled water
- Cooling water
- Glycol/water solution where applicable
- Other compatible cooling medium
The required utility temperature, pressure, flow rate and heat-transfer area should be finalized according to the actual process.
Temperature Control
For controlled processing, the tank can be integrated with a temperature-control system comprising:
- RTD / temperature sensor
- Digital temperature indicator
- Temperature controller
- Solenoid/control valve
- Utility circulation system
- PLC/HMI control
This allows the product temperature to be monitored and maintained within the desired process range.
Agitator Option
An agitator can be installed where the product requires continuous mixing during heating or cooling.
Available agitator configurations include:
- Propeller type
- Paddle type
- Turbine type
- Anchor type
- Scraper type
- Customized impeller
The agitator motor, shaft diameter and impeller design are selected according to product viscosity, tank dimensions and mixing requirements.
Insulation
For applications involving elevated or low temperatures, the tank can be provided with thermal insulation.
Typical construction consists of:
Product Vessel → Double Jacket → Insulation → SS External Cladding
Insulation helps reduce heat loss/heat gain and improves operator safety by reducing the external surface temperature.
Surface Finish
Product-contact surfaces can be supplied with a hygienic finish suitable for the application.
Available options include:
- Smooth finish
- Buff finish
- Mirror polish
- Customized sanitary finish
Internal welds can be properly ground, dressed and polished to reduce crevices and product accumulation.
Cleaning & Hygiene
For GMP-oriented applications, the tank can be configured for easy cleaning with:
- Smooth internal surfaces
- Polished internal welds
- Sanitary Tri-Clamp connections
- Bottom drainage
- Spray ball
- CIP arrangement
- Sanitary valves
- Removable top cover
Optional Instrumentation
The following instruments can be supplied according to process requirements:
- Digital temperature indicator
- RTD temperature sensor
- Temperature controller
- Pressure gauge
- Jacket pressure gauge
- Level indicator
- Level transmitter
- Level switch
- Sight glass
- Sampling valve
- Load cells
- Vacuum gauge
- Safety/relief valve where required
Key Features
- Available from 50 Ltr. to 2500 Ltr.
- Double-wall jacketed construction.
- Suitable for heating and cooling applications.
- SS 304 / SS 316 / SS 316L product-contact options.
- Hot water, chilled water or steam utility options.
- Hygienic and corrosion-resistant construction.
- Smooth internal product-contact surfaces.
- Customized bottom configuration.
- Sanitary inlet and outlet connections.
- Optional agitator arrangement.
- Optional insulation and SS cladding.
- Optional CIP system.
- Temperature monitoring and control options.
- Heavy-duty support structure.
- GMP-oriented construction available.
- Customized dimensions and process connections.
Applications
Double Jacketed Tanks are suitable for:
- Pharmaceutical liquid formulations
- Syrups
- Suspensions
- Creams and lotions
- Cosmetic formulations
- Ayurvedic and herbal preparations
- Nutraceutical products
- Food and beverage products
- Dairy preparations
- Sauces and liquid food products
- Chemical solutions
- Adhesives
- Resins
- Oils and compatible process liquids
- Temperature-sensitive formulations
Advantages
- Uniform indirect heating and cooling.
- No direct contact between utility medium and product.
- Controlled product temperature.
- Hygienic stainless-steel construction.
- Suitable for a wide range of process liquids.
- Easy cleaning and maintenance.
- Optional agitation during heating/cooling.
- Optional insulation reduces energy loss.
- Customized design for different process requirements.
- Suitable for GMP-oriented production environments.
Customization Options
TECHMAC ENGINEERING WORKS can customize the Double Jacketed Tank according to:
- Capacity
- Material grade
- Working and total volume
- Tank diameter and height
- Vertical/horizontal orientation
- Jacket area
- Jacket type
- Utility medium
- Heating/cooling duty
- Operating temperature
- Operating pressure
- Bottom configuration
- Top-cover arrangement
- Agitator requirement
- Insulation thickness
- Surface finish
- Inlet/outlet size
- Valve type
- CIP requirement
- Instrumentation
- Support arrangement
