Industrial filter papers
PPN
Fast & coarse filtration| Grade | Thicknessmm | Grammageg/m2 | Porositysec | B.F.kg/cm2 |
|---|---|---|---|---|
| PPN 01 | 0.3 | 100 | 5 | 4 |
| PPN 15 | 0.4 | 150 | 7 | 4 |
| PPN 02 | 0.6 | 200 | 10 | 4 |
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Cellulose filtration media
Industrial Filter Paper Manufacturer in India
We manufacture virgin wood-pulp filter papers for supported industrial filtration, with porosity, bursting strength, particle retention and flow specified together.
Sri Bharathi Tech manufactures and supplies Industrial Filter Papers from Ankleshwar, Gujarat, India, with grade, size and configuration selection based on the buyer’s process and equipment.
Technical product information
Wood-pulp media. Clear specifications.
PPN industrial filter papers for fast and coarse filtration. Compare thickness, grammage and porosity to support grade selection for your process.
Built for fast, coarse filtration
Manufactured from wood pulp, PPN filter papers provide a practical media option for compatible industrial liquid filtration duties.
- Wood-pulp constructionAvailable in three grades with defined thickness, grammage and porosity values.
- Flow considerationsGrammage and porosity help inform flow behaviour. Confirm performance with your liquid and operating conditions.
- Industrial applicationsUsed in pharmaceutical, food, beverage, chemical and cosmetics processes, subject to application suitability.
Operating principle
How the filtration product works
Industrial filter paper is a porous fibre sheet that supports fast or coarse filtration by allowing liquid to pass while retaining suspended matter at the surface and within the fibre network. A cake may form and become part of the filtration mechanism as solids accumulate.
Flow and retention must be considered together: an open sheet may deliver rapid throughput but retain fewer fine particles, while a denser sheet can improve clarification at the cost of higher resistance and shorter cycles under heavy solids load.
Media design
Construction and process behaviour
Sri Bharathi filter papers are manufactured from virgin wood pulp, with softwood and hardwood furnish options. Premium grades may receive impregnation to balance wet strength and other properties for the intended filtration duty.
Key performance parameters include porosity, bursting factor, particle-retention characteristics and flow rate. These properties should be tied to a test method and grade tolerance before purchasing decisions are made.
What to evaluate
Important features and benefits
01
Virgin wood-pulp furnish
Softwood and hardwood pulps are available as raw-material options.
02
Fast or coarse filtration
The range is positioned for duties where throughput and gross solids removal are important.
03
Wet-strength options
Premium grades may be impregnated for aqueous strength and application fit.
04
Measured performance inputs
Porosity, bursting factor, retention character and flow rate are key specification fields.
05
Converted formats
Sheets, circles or equipment-specific cut shapes can be discussed against a drawing.
06
Trial-based approval
Actual fluid testing resolves the tradeoff between clarity, flow and sheet life.
Technical data
Specification and enquiry checklist
The specifications below provide a practical basis for product selection. Final grade and configuration are matched to the intended process conditions.
| Selection parameter | Product details | Engineering relevance |
|---|---|---|
| Fibre source | Virgin softwood or hardwood pulp. | Fibre morphology influences formation, strength and permeability. |
| Porosity | PPN grade values: 5 sec (PPN 01), 7 sec (PPN 15), 10 sec (PPN 02). | Confirm the current test method and tolerance; relates to permeability and filtration speed. |
| Bursting factor | PPN grade values: 4 kg/cm² for PPN 01, PPN 15 and PPN 02. | Confirm the current method and wet/dry basis; indicates mechanical robustness. |
| Particle retention | Characterised by grade and process trial. | Not interchangeable with an absolute membrane rating. |
| Flow rate | Grade- and fluid-specific. | Depends strongly on viscosity, pressure, area and solids loading. |
| Impregnation | Premium grades may be treated for required properties. | Confirm chemistry, extractables and contact suitability. |
| Dimensions | Application-specific converted sheets or discs. | Approved drawing reduces risk of bypass and fit errors. |
Process fit
Applications and selection considerations
Industrial filter papers may be used in chemicals, pharmaceuticals, foods, beverages, cosmetics and general process filtration where a supported disposable sheet is appropriate. They can serve as gross particulate media, cake-support layers, prefilters or laboratory/process-development tools.
How to compare grades
- Test equal effective area under the same feed, temperature and pressure.
- Measure initial flow and total throughput to the defined endpoint.
- Compare filtrate clarity or particle result at several points in the cycle.
- Inspect for tearing, edge bypass, fibre release and difficult cake removal.
- Review contact, traceability and extractables documents before regulated use.
Questions engineers ask
Frequently asked questions
Is filter paper specified only by GSM?
No. GSM indicates mass per area. Porosity, formation, thickness, fibre furnish, strength and treatment determine how the sheet behaves.
What is bursting factor?
It is a measure related to resistance to rupture under a specified test. The value is meaningful only with its method, units and whether the sample is wet or dry.
Why can laboratory flow differ from plant flow?
Viscosity, temperature, effective area, pressure, solids concentration and cake development may all differ between the test and production equipment.
Can filter paper be reused?
These papers are generally treated as disposable media. Reuse would require a demonstrated cleaning, integrity and contamination-control procedure.
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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.