Filter Cartridges

Pall offers industry-leading liquid filtration options to serve industrial, life sciences and water applications. Liquid filter cartridges are a common and versatile solution used in a wide array of applications where there are varying flow rates and contamination removal requirements. Different filter media and membranes are available in the cartridge format, each suitable for specific needs; ranging from coarse pre-filtration for high-dirt holding capacity in industrial applications to fine high purity filtration suitable for pharmaceutical, food and beverage and water applications.

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Cartridge Length (Imperial)

28 in

DFT Classic®, Filter Cartridges, Removal Rating 1 μm, Length 28 Inches product photo

DFT Classic®, Filter Cartridges, Removal Rating 1 μm, Length 28 Inches

Product ID: G001DW28S1PK
Unit of Measure
12/EA
Min Order Qty
12
Packaging
Individually wrapped
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Description

How are filter cartridges used and how do they work?

 

Filter cartridges are used to fulfill contaminant control and fluid cleanliness requirements by removing contaminants from water, oils, solvents, fuels, aqueous solutions, and other fluids. Filter cartridges can be used as a pre-filter for particulate removal or as a final filter for virus filtration, or microbial removal. They may also be validated as sterilizing grade or for microorganism reduction.

 

Typically, a depth-style filter cartridge will capture contaminants at multiple levels within the tapered pore structure. Pleated filters and those with a more uniform pore design, use surface filtration where contaminants larger than the pore size of the media will be trapped on the surface. These cartridges are typically placed inside a housing (vessel) where the fluid will flow through to be filtered.

 

Filter Cartridge Configuration and Construction Styles

 

  • Depth (melt-blown)
  • Pleated (conventional fan-pleat or laid-over pleat)
  • Wound (string wound or spiral wound)

 

Filter Medium and Membranes

 

  • Polymeric/Synthetics – Polypropylene (PP), polyphenylene sulfide (PSS), polyethersulfone (PES) and nylon
  • Membranes – Fluoropolymers (e.g., polytetrafluoroethylene (PTFE), polyvinylidene fluoride (PVDF) (hydrophilic) and polyester (PE)
  • Yarns – Cotton, glass fiber, polypropylene, polyester, nylon and polyphenylene sulfide (PPS)

 

Food Contact Compliance (W-Code)

 

In line with the high-quality requirements and stringent regulations around food safety, Pall developed a comprehensive portfolio of products compliant to the latest food contact regulations for the food and beverage industry. The portfolio includes a full range of products from depth filters for particle removal to membrane filters qualified for removal of market-specific bacteria and spoilage organisms that can adversely impact taste and product shelf-life. Cartridge filter products within the portfolio are noted with “W” in the part number or material description.

 

Specific Declarations of Compliance for these filters are available on the Pall website. These “Declaration of Compliance” statements are reviewed on an ongoing basis to ensure compliance with new or updated regulations. Please refer to the following link for a Declaration of Compliance to specific National Legislation and/or Regional Regulatory requirements for food contact use, and to consult applicable part numbers.

 

Compliance Documentation For Food Contact Applications

 

Pharmaceutical (P-Code) Sterilizing Grade Filters

 

Pall’s pharmaceutical-grade filters are designed for use in conformance with CGMP in Manufacturing, Processing, Packing, or Holding of Drugs (21CFR210) and CGMP for finished Pharmaceuticals (21CFR211.72) including batch release certificate and full traceability. P-Code at the end of part number or noted in the description indicates optimized and qualified for Pharmaceutical use, including encapsulated stainless-steel reinforcing adapter ring for in situ steam sterilization, 100% integrity testing and Certificate of Test provided. When in doubt, contact a Technical Specialist to confirm product specifications and compliance. 

 

For further reference, see also Pall’s Product Quality Conformance Documentation.

 

Shop Pall’s Filter Cartridge Options:

 

Depth Filter Cartridges

 

Depth (melt-blown) filters are constructed using a computer-controlled process where fibers are deposited onto a rotating center core, forming a tapered (graded) pore structure. This structure offers very high mechanical strength, long service life and efficient contaminant removal. Depth filters are often used for gel removal and allow for higher retention in fluids when there is a wide particle size distribution of contaminants.

 

Pleated Filter Cartridges

 

Pleated filters are formed from a media or membrane sheet into a pleated cylinder cartridge. Pall offers pleated filters in both a conventional fan pleat geometry as well as a patented laid-over pleat, which provides higher surface area for higher dirt holding capacity and longer life. Pleated filters are used for fluids with a narrower particle size distribution and where high flow rates are required, providing low pressure drops.

 

Pleated-Depth Filter Cartridges

 

Pleated-depth filters are a cartridge format made from thick melt-blown depth filter media with a tapered pore structure. A pleated-depth filter hybrid combines the exceptional dirt-holding capacity of depth filters with the high flow rates of pleated filters.

 

String-Wound Filter Cartridges

 

String-wound filters are a format of depth filters with graded pore structure formed into a cylinder using yarn wound or woven around a core with high precision. Wide compatibility is available with materials used such as cotton, glass fiber, polypropylene, polyester, nylon and polyphenylene sulfide (PPS), wound around a core usually of 304 SS or 316 SS. String-wound filters offer an economical solution for long service life and high contaminant loading capacity where chemical and temperature compatibility are a challenge.

 

Lube & Hydraulic Filter Elements

 

Featuring Stress-Resistant Technology (SRT), our lube and hydraulic elements are available in laid-over-pleated designs. With cage-less construction, these filter elements have inert, inorganic fibers that are securely bonded in a fixed, tapered pore structure. Pall’s filter elements provide optimum performance under system stress at all stages of filter life, along with low clean pressure drop.

 

 
 

Specifications

 

Depth Filters:
Filter Medium 
Polypropylene
Core, Cage and Endcaps 
  • Polypropylene
  • Glass filled polypropylene
  • Glass filled nylon  
Filter Grade Range
100 nm to 200 µm
Adaptors 
  • Polypropylene
  • Polypropylene with a stainless steel reinforcing ring
Length
10.2 cm (4 in.) to 127 cm (50 in.)

 

Pleated Filters:
Filter Medium 
  • Pure polypropylene
  • Polypropylene
  • Spunbonded polyester
  • Borosilicate microfiber glass with acrylic binder
  • Highly asymmetric polysulfone membrane
  • Hydrophilic asymmetric polysulfone
  • PTFE (polytetrafluoroethylene)
  • Bonded glass fiber
  • Resin-bonded inorganic fiber on polyester substrate
  • Resin-bonded glass fiber
  • Hydrophilic asymmetric PES
  • Hydrophilic PVDF
  • Hydrophilic modified PVDF
  • Double layer PTFE
  • Polytetrafluoroethylene (hydrophobic)
  • Nylon with integral polyester non-woven substrate
  • Nylon 6,6
  • Dual Layer PES membrane
  • Hydrophilic PES
  • Polyaramid (on cellulose substrate)
  • Liquid crystal polymer on cellulose substrate
  • Resin bonded liquid crystal fibers on a cellulose substrate
  • Surface-modified PTFE
  • Highly asymmetric polysulfone
  • Highly asymmetric hydrophilic polysulfone
  • Polysulfone membrane
  • Hydrophilic ultra-high molecular weight polyethylene (UHMWPE)
  • Functionalized PTFE
  • Asymmetric hydrophilic nylon 6
Core, Cage and Endcaps
  • Polypropylene
  • Polysulfone
  • Perfluoroalkoxy alkanes (PFA)
  • High-density polyethylene (HDPE)
  • Glass-filled Polypropylene
Hardware 
Polypropylene
Filter Grade Range
Air & Gas
<0.003 µm to 0.3 µm
Liquids
5 nm to 100 µm
Adaptors
  • Polypropylene
  • Polypropylene with encapsulated stainless steel ring
  • Polypropylene with internal stainless steel reinforcing ring
  • Polymeric, encapsulated in oxygen-resistant polypropylene
  • Polyester, Unpigmented Nylon 6-10 with internal stainless steel reinforcing ring
Length
43 mm (1.7 in.) to 1016 mm (40 in.)

 

Pleated-Depth Filters:
Filter Medium 
Polypropylene
Core, Cage and Endcaps
Polypropylene
Filter Grade Range
0.8 µm to 100 µm
Adaptors
Polypropylene with a stainless steel reinforcing ring
Length
254 mm (10 in.) to 1016 mm (40 in.)

 

String-Wound Filters:
Filter Medium
Bleached cotton
Standard cotton
Natural cotton
Glass fiber
Heat purified glass fiber
Premium polypropylene
Standard polypropylene
Rayon
Polyester
Nylon
Acrylic
Polyphenylene sulfide (PPS)
Polytetrafluoroethylene (fluoropolymer)
Filter Grade Range
0.5 µm to 350 µm
Length
10.2 cm (4 in.) to 127 cm (50 in.)

 

Lube & Hydraulic Elements:
Filter Medium 
Glass Fiber - Inorganic fibers impregnated and bonded with epoxy resins. 
Endcaps
Polymer
Filter Grade Range
1 to 200 µm
Length 
762 mm (30 in.) to 1283 mm (50.51 in.)

Applications/Use

Pall© filters Cartridges are used for a variety of applications in oil and gas, chemical and polymers, micro-electronics, food and beverage and biotech.

Oil & Gas:

  • LNG Acid Gas
  • Midstream Process Water
  • Refinery Amine Systems
  • Upstream Injection Water & SRU
  • Midstream Acid Gas
  • Midstream Glycol Filtration

Chemicals & Polymers:

Polyurethane Production –
 
  • Chem Intermediate Product (Other)
  • Chem Raw Material - Liquid, Amine / Benfield / Other Solvent Loop
  • Chemicals Raw Material / Gas / Air
  • Chem Final Product (Liquid)
  • Poly Cmdty Raw Material (Fluids)
  • Poly Cmdty Intermediates (Fluids)
  • Poly Engrd & Spcl Raw Material (Fluids)
  • Poly Engrd & Spcl Intermediate (Fluids)
  • Chem Final Product (Liquid)

Micro-Electronics:

  • Wet Etch & Cleans
  • Wet Etch Chemicals  
  • Ink Filtration
  • Color Filter
  • Pre and Post Filter for DI Water
  • Point-of-use Filter for DI Water
  • Process Gas Filtration
  • Recirculating Nickel Plating
  • Recirculating Water/Alkaline Soaps
  • Plating
  • Photolithography
  • Slurry Filtration 
  • Solvent Filtration 

Food and Beverage:

  • Primary Filtration
  • Pre-clarification
  • Clarification
  • Trap filtration
  • Pre Storage and Filtration
  • Fine Filtration
  • Tank Vent/Air Filtration
  • Final filters for microorganism reduction and sterility

Biotech:

  • Filters – Particulate

FAQs

Q.1. What are the industries that use Pall’s filter cartridges?

Pall’s filter cartridges find applications in a wide range of industries, including food and beverage, micro-electronics, biotech, pharmaceutical and general industrial use. 

 

Q.2. Can Pall’s filter cartridges fit in standard filter housings?

Yes, Pall’s filter cartridges can fit in most standard filter housings and systems. They are typically placed inside a housing, capsule, or casing.

 

Q.3. What kind of fluids can be filtered with Pall’s filter cartridges?

Pall’s filter cartridges can remove solid contaminants and microorganisms from water, oils, solvents, fuels, aqueous solutions and other process fluids.

 

Q.4. Can Pall’s filter cartridges be used for pre-filtration, membrane filtration, and final filtration? How do I select them accordingly?

Yes, Pall’s filters can be used for pre-filtration to final filtration stages. They can be selected based on the pore size of the filter cartridge, the filtration media or membrane and the format of construction.

 

Q.5. What kind of construction configurations are Pall’s filter cartridges available in?

Pall’s filter cartridges are available in 4 different construction configurations: depth, pleated, pleated-depth and string-wound or spiral-wound.

 

Q.6.  What is the difference between surface filtration and depth filtration?

In surface filtration, a filter with a uniform pore design, traps contaminants that are larger than the pore size of the media. In depth filtration, the contaminants are trapped at multiple levels within the filter because of the tapered pore structure of the depth filters.

 

Q.7.  What are the materials that are used in the construction of filter media or membrane?

Cotton, cellulose, glass fiber, polypropylene, nylon, polyphenylene sulfide (PSS) and a variety of polymeric materials are used in the construction of filter media or membrane. 

 

Q. 8. Are Pall’s filter cartridges Food Contact and Pharmaceutical Compliant?

Yes, they mostly are. You can look for “W” or “W480” in the material description or in the part number for Food Contact Compliance. For pharmaceutical sterilizing grade filters, check for the P-code in the description or the end part of the number.

 

For more details, check the below given links or get in touch with a Technical Specialist from Pall.

Compliance Documentation For Food Contact Applications

Technical Guidance For Food Contact Compliance

Pall’s Product Quality Conformance Documentation

 

Q. 9. Are Pall’s filter cartridges disposable?

Yes, Pall’s filter cartridges are disposable.