01
Enclosed depth sheets
Reduces open handling compared with manually dressed sheet stacks.
Modular filtration
Lenticular Depth Filter Systems
Enclosed stacks of supported depth-filter sheets that provide compact area, stable drainage and practical handling for process clarification.
Original product references
Product and system imagery
These first-party Sri Bharathi images are retained from the previous website. Grade tables are legacy published references; confirm current availability, tolerances and test methods with the quotation.
Operating principle
How the filtration product works
A lenticular module stacks annular depth-filter sheets around an internal drainage structure. Feed enters the housing, moves through the depth media and reaches clean-side channels that collect filtrate toward the central outlet. Multiple sheet layers provide substantial area within a sealed, compact assembly.
Compared with exposed plate-and-frame sheets, the enclosed module can simplify handling and reduce open-product exposure. It does not eliminate the need to control differential pressure, flow direction, venting, pre-wetting or sanitation.
Media design
Construction and process behaviour
Sri Bharathi describes modular/lenticular systems as piles of depth pads separated by an in-built drainage structure. Dividers support individual sheets, help resist deformation during heat treatment and hot sanitation, and create multiple flow channels. Rigid external clips assist module handling.
Specifications and material-of-construction options are application-dependent. Sheet grade, module diameter, cell count, gasket, housing connection and sanitation limits should be frozen in an approved specification.
What to evaluate
Important features and benefits
02
Internal drainage
Separators collect filtrate and support multi-directional flow.
03
Sheet stability
Dividers provide mechanical support during processing and heat exposure.
04
Compact area
Stacked annular sheets package useful depth-media area in a housing.
05
Safer handling
External clips help protect sheets during loading and unloading.
06
Configurable materials
MOC and module specifications can be matched to compatible applications.
Technical data
Specification and enquiry checklist
Values below are limited to information published by Sri Bharathi. Final grade, compatibility and operating limits must be confirmed against the actual process.
| Selection parameter | Available / verified information | Engineering relevance |
|---|---|---|
| Media format | Stacked annular depth-filter sheets. | Choose grade for clarification target and solids load. |
| Drainage | Built-in separators and clean-side channels. | Supports filtrate collection and sheet stability. |
| Module size / cells | Application-specific; not publicly listed. | Match housing, batch volume and required area. |
| Material of construction | Multiple compatible options are referenced. | Confirm plastics, seals and sheet materials for the process. |
| Heat treatment | Design addresses deformation during heat treatment/hot sanitation. | Request grade-specific cycle limits and validation. |
| Operating direction | Housing- and module-specific. | Incorrect assembly or flow risks bypass or damage. |
| Integrity / endpoint | Define by process and supplier data. | Trend pressure, flow and filtrate quality. |
Process fit
Applications and selection considerations
Lenticular filtration can be considered for beverage, food, gelatin, pharmaceutical intermediate and chemical clarification where enclosed depth media, manageable module handling and compact area are valued. It is often positioned after bulk solids removal and before finer cartridges.
Start-up and operation
- Confirm orientation and seals before closing the housing.
- Vent trapped air and wet the module using the approved fluid and procedure.
- Raise flow gradually while monitoring differential pressure.
- Collect or divert initial rinse volume according to process controls.
- Stop at the validated pressure, flow or quality endpoint.
- Drain and remove the module using appropriate exposure and handling controls.
Questions engineers ask
Frequently asked questions
How is a lenticular filter different from a sparkler filter?
Both can use depth media, but a lenticular module encloses stacked annular sheets around drainage cells, while a sparkler filter uses individual pads or cloths on horizontal plates.
Can lenticular modules be sanitised?
Some constructions are designed for compatible hot sanitation. Confirm the exact time, temperature, cycle count and fluid for the quoted module.
What causes premature pressure rise?
High incoming solids, insufficient prefiltration, viscous or cold feed, too-fine media, air binding or excessive initial flux can contribute.
Are lenticular filters final membrane filters?
They are depth filtration modules. A validated membrane may still be required where a downstream microbial-retention claim is needed.
Continue specifying
Related filtration products
Technical presentation
Lenticular and Modular Filter Media
Explore the migration from conventional sparkler pads to Sri Bharathi modular/lenticular filtration, including flow paths, handling, throughput and system advantages.
Application support
Send us your operating conditions
Share your fluid, temperature, desired clarity, existing equipment and dimensions. Our team can then recommend a suitable construction and prepare a quotation.