Polypropylene Melt Blown Depth Filter Cartridge – Nominal

Product description

Nominal rated polypropylene melt blown depth filter cartridge for general liquid filtration

The polypropylene melt blown depth filter cartridge – nominal is designed to provide economical and reliable depth filtration for a wide range of industrial and process applications. Manufactured from 100% polypropylene using advanced melt blown technology, this cartridge delivers consistent nominal filtration efficiency combined with long service life and excellent chemical resistance.

The graded, multi-layer fibre structure ensures efficient contaminant retention throughout the full depth of the media while maintaining a low pressure drop, making this cartridge suitable for continuous filtration duties.

Filtration principle

The cartridge is manufactured using a controlled melt blown process that creates a graded depth filtration structure.

• Process liquid flows from the outside to the inside of the cartridge

• Larger particles are captured in the outer layers

• Finer particles are progressively retained within the inner matrix

• Contaminants are distributed throughout the full depth of the media

This filtration principle provides:

• nominal filtration efficiency of approximately 85%

• high dirt holding capacity

• low initial pressure drop

• stable filtration performance over service life

Nominal filtration performance

These cartridges are designed to provide reliable nominal filtration performance for applications where absolute filtration is not required.

Key performance characteristics include:

• nominal efficiency of approximately 85% (Beta 5)

• consistent particle reduction

• predictable pressure drop behaviour

• extended cartridge service life

This makes the cartridge suitable for pre-filtration and general process filtration applications.

Design and construction

The cartridge features a coreless, continuously formed melt blown construction using thermally bonded polypropylene fibres.

Typical design features include:

• graded, multi-layer melt blown polypropylene depth media

• progressively varying pore structure

• binder-free construction without resins or lubricants

• high filtration surface area

• rigid structure for mechanical stability

The design maximises contaminant loading while maintaining flow performance.

Materials of construction

• Filter media: Polypropylene

• Core: Coreless polypropylene construction

• End caps: Polypropylene

• Sealing options:

  • EPDM

  • Silicone

  • Viton®

  • Nitrile

  • FEP encapsulated

All materials are food-grade suitable, BPA-free and selected for chemical and biological resistance.

Operating conditions

Typical operating conditions include:

• nominal micron ratings from fine to coarse filtration ranges

• continuous operating temperature up to 80°C

• short-term exposure up to 120°C

• recommended change-out differential pressure of 2.5 bar

Exact operating limits depend on cartridge length, micron rating and process conditions.

Key benefits

• Economical nominal depth filtration solution

• Nominal efficiency of approximately 85%

• High dirt holding capacity

• Low and stable pressure drop

• Long service life

• 100% polypropylene construction

• Excellent chemical and biological resistance

• Food-grade suitable materials

Typical applications

These cartridges are commonly used in:

• food and beverage processing

• industrial water treatment

• RO pre-filtration and resin protection

• chemical and petrochemical processes

• pharmaceutical pre-filtration

• cosmetics manufacturing

• general industrial liquid filtration

Configuration options

Available configuration options include:

• wide range of nominal micron ratings

• multiple standard cartridge lengths

• double open end and single open end configurations

• various sealing material options

This allows compatibility with standard filter housings and flexible integration into existing systems.

Compliance and quality

Polypropylene melt blown nominal cartridges are manufactured under controlled production conditions to ensure consistent quality and performance.

• FDA-compliant polypropylene materials

• Materials suitable for food contact applications

• Production under ISO 9001 quality management systems

• Free from binders, resins and lubricants