filter media
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string wound filter cartridges
String wound cartridge filters provide true depth filtration, high dirt holding capacity, and extremely low media migration. They are a superior, one-piece cartridge manufactured using a high speed, continuous wind process, and are available in a wide variety of lengths and porosities. Especially significant is the availability of filters in an almost endless combination of media and core material, to handle virtually any chemical and/or environment or temperature. U-Series string filter cartridges are available with 14-string, seven core and 12 material and end cap options. Outside dimensions of 2 to 6 inches and lengths of 5 to 72 inches are standard. They can be sized for virtually all single- or multi-round filter housings. The precise winding pattern defines micron ratings and results in higher dirt-holding capacity and efficiency. The UPDN series of polypropylene string cartridges is Gold Seal Certified to the ANSI/NSF 42/61 standard.
UPDN Series Filter Cartridges have been tested and certified to the ANSI/NSF 42/61 standard to assure continuity of materials and consistency in manufacturing the finished product. Each component is identified and controlled in accordance with the registered wetted parts lists. These cartridges will not impart unwanted leached materials into the downstream flow. Nominal micron ratings of 0.5 to 200, with 3.75- to 72-inch lengths and 2- to 6-inch outside diameters, offer a wide range of options suitable to most industry standard filter housings. Cartridges are double open ended. Optional end cap treatments available. See below.
UPDN Cartridges are in use at state and federal correctional institutions, office buildings, municipal water districts, Department of Defense road mobile potable water systems, and other applications where the ANSI/NSF 42/61 standard is required.
filter core selection guide:
- Polypropylene: economical core of choice for most applications in water and corrosives to 200ºF.
- Tin Plated Steel:General purpose metal core for oils, solvents,paints, and other non-FDA applications. For use to 400ºF.
- 304 Stainless Steel:For high temperature applications on diluted acids and moderately corrosive fluids. For use to 750ºF.
- 316 Stainless Steel:For high temperature applications on strong acids and highly corrosive fluids. For use to 750ºF.
- Glass-filled nylon for strong acids and highly corrosive fluids when polypropylene is not compatible.
Filter Media Selection Guide
UP Standard Polypropylene String Wound
For concentrated acids and alkalies, strong oxidizing agents, and corrosive fluids and gases. Easily incinerated to trace ash. For use to 200º F.
UPDN NSF42/61 Grade Polypropylene
String Wound
For applications requiring compliance with local, state and federal regulations, where all traceability of all wetted parts is required. This filter is suitable for food, beverage and other potable water applications
UK Polyester String Wound
Chemical resistance similar to polypropylene with high temperature resistance. For use to 350º F.
UF Fibrillated Polypropylene String Wound
Non-migrating slit film polypropylene free of extractables used in ultra-pure liquids, electronics, and plating where non-leaching is critical. Chemical resistance is equal to standard polypropylene.
UCCU Econo White Cotton String Wound
Combination bleached cotton outer wrap with natural cotton interior used for non-FDA water treatment applications.
UN Nylon String Wound
For special process applications, concentrated alkalies, and hydrocarbons. For use to 300ºF.
UPD FDA Grade Polypropylene String Wound
Ideally suited for potable water, Pharmaceutical and Food Processing Applications.
UC Bleached Cotton String Wound
Bleached to meet FDA standards for distilled water, beverages, vegetable oils, petroleum, fatty acids, and alcohols. For use to 300º F. FDA approved.
URT Ryton String Wound
Non oxidizing, good for high PH applications even at elevated temperatures. Is chemically resistant with many acids, salt solutions & automotive fluids. Max Temp 425ºF.
UU Natural Cotton String Wound
For oils, water, paints, organic solvents, alcohols, and petroleum. Non-FDA applications. For use to 300º F.
UR Rayon String Wound
Fluid compatibility similar to bleached cotton, but with more coarse fiber and less absorbency than cotton. Swells in aqueous solutions. For use to 300º F.
UG Fiberglass String Wound
Available in both standard and baked media. Baking removes all traces of oil sizing,
yielding virgin glass fiber. For use to 750º F.
There are 12 different end caps to all of the filter lines. The diversity of these end caps provides an endless variety of filtration needs for every industry. See the different types below.
melt blown filter cartridges
Melt Blown Cartridges are manufactured from 100% Polypropylene construction. They offer excellent filtration and good thermal stability. The unique density gradient construction maximizes efficiency and minimizes pressure drop. This filter will not impart taste, odor, or color to the filtered product and has superior chemical resistance for process fluid applications. Optional Grooving effectively doubles the surface area providing lower clean pressure drop, increased dirt holding capacity and longer life. Cartridges are available in various sizes, micron ratings, and end treatments.
The MBG Series filters are gradient-density, grooved melt-blown cartridges manufactured from FDA-graded polypropylene. A cut groove process maintains open pore construction, doubling usable surface area. They are available in 1 to 50-micron and 10 and 20-inch lengths, with optional end treatments.
MELT BLOWN SEDIMENT FILTERS
Melt Blown Cartridges is manufactured from 100% Polypropylene construction offering excellent filtration and good thermal stability. The unique density gradient construction maximizes efficiency and minimizes pressure drop. This filter will not impart taste, odor, or color to the filtered product and has superior chemical resistance for process fluid applications. Grooving option effectively doubles the surface area providing lower clean pressure drop, increased dirt holding capacity and longer life. All these qualities resulting in a lower cost of ownership.
Cartridges are available in one to 50-micron ratings, 2.5-inch and 4.5-inch outside widths and 4-inch to 50-inch lengths, and various end cap configurations (see below) for a broad array of applications.
Applications:
• Pre Filters for Reverse Osmosis Filters
• Home Water Filtration
• Swimming Pools
• High Efficiency
Specifications:
Construction: 100% Polypropylene Media
Maximum Temperature: 180ºF (4.4ºC)
Micron Rating: One to 50-micron ratings
Maximum Differential Pressure: 50 PSID
MELT BLOWN GROOVED SEDIMENT FILTERS
Multi-layered graded density grooved polypropylene filters are ideally suited removal of sand, silt, dirt and rust particles. Materials meet FDA specifications and are specially constructed to preclude downstream contaminate. Grooving effectively doubles the surface area providing lower clean pressure drop, increased dirt holding capacity and longer life. All these qualities resulting in a lower cost of ownership. Cartirdges are available in 1, 5, 10, 25 and 50 micron nominal filtration, both in standard 2.5-inch and big blue 4.5-inch outside diameters and 5-inch, 10-inch” and 20-inch lengths.
Applications:
• Potable Water
• Beverage
• Pre Filters for Reverse Osmosis Filters
• Fine Chemicals
• Metal Finishing
• Plating Solutions
Packaging:
Standard, 2.5 inches OD x 9.875 inches
50 per case
Big blue. 4.5 inches OD x 9.875 inches
24 per case
These are also available in 12 different end caps and the diversity of these end caps provides an endless variety of filtration needs for every industry. See the different types below.
pleated filter cartridges
Pleated Filters are an alternative to string wound or spun molded filters. These filters are economical, multi-use, premium quality products that are available in various micron ratings ranging from 50-micron nominal down to .10-micron absolute. End cap configurations include DOE (double open end, flat gasket) and SOE (single open end, external double 222 O-ring/button end cap). Filter medias available include self-bonded fine diameter polypropylene fibers as well as membranes constructed of polypropylene, nylon, or PTEF.
Pleated cartridge filters contain no surfactants or binders that can break down, leach out, or permit the typical problems of channeling and media migration. Maximum effective open surface areas allow for high flow rates at reduced pressure drop, as well as high dirt holding capacity, long service life, large throughputs, and lower operating costs. These pleated cartridge filters may be used as either pre-filters or as final filters for bulk and point-of-use filtration. They are most appropriate for use when high efficiency filtration and economy are crucial.
Recommended Applications:
- Water Purification
- Etchants
- Colloid Removal
- Solvents
- Pharmaceuticals
- Food and Beverages
- Photographic and Plating Solutions
- Printed Circuit Boards
- Chemicals: Ethers, Ketones, Acids, Esters, Alcohols, Bases, and Solvents
- Magnetic Coatings
- Metal Finishing
- Biologicals
- Microorganisms/Bacteria Retention
The UPE Cartridges are available in .25 to 250 microns and are stocked in 10-inch, 20-inch, 30-inch, and 40-inch lengths in both 2.75-inch and 4.5-inch outside diameter.
Each 10-inch x 2.75-inch cartridge contains 4 square feet of durable, non-woven polyester fabric. Big Blue, 4.5-inch diameter cartridges contain 16 square feet of surface area. End caps, polypropylene core and polyester media are bonded into thermo-set vinyl plastisol which fuses all components into a single homogenous cartridge. Side seams are sonically welded to preclude bypass and improving efficiency.
Washable, resistant to bacteria and chemicals and compatible with a wide range of filtration uses, the United Filters UPE Series Cartridges are ideally suited for residential and commercial/industrial applications.
Features:
- Nominal and Absolute Particle Retention Ratings
- Superior Flow Characteristics
- High Dirt Holding Capacity
- Many Lengths and Cartridge Styles
- Low Clean Differential Pressure Drops
Specifications
- Type: Pleated Non-Woven Polyester
- Construction: Non-Woven Polyester Fabric Media
- Vinyl Plastisol End Caps
- Polypropylene Core
- Operating Temperature Range: 40ºF (4.4ºC) to 125ºF (52ºC)
- Micron Rating: Nominal .25, .50, 1, 5, 10, 20, 30, 50
- LOWER clean initial pressure drops
- MORE uniform filtration and overall enhanced cartridge performance
- HIGH particulate reduction efficiencies up to 95%
- OPERATE at HIGHER velocities and flow rates
- GREATER degree of depth filtration
- ADDED loading capabilities
- Dimensions: Max. Recommended Flow Rates:
2 -3/4” Ø X 9 3/4”, 10” long 4-7 GPM
2 -3/4” Ø X 19 1/2”, 20” long 8-14 GPM
2 -3/4” Ø X 30” long 12-21 GPM
2 -3/4” Ø X 40” long 16-28 GPM - Type: Pleated Bi-Component Polypropylene
- Construction: Bi-Component Polypropylene Media
- Vinyl Plastisol End Caps
- Polypropylene Core
- Polypropylene Outer Netting
- Operating Temperature Range: 40ºF (4.4ºC) to 145ºF (63ºC)
- Micron Rating: Nominal 1, 5, 10, 20, 30, 50
CELLULOSE PLEATED FILTERS are designed for general water filtration purposes. They are economical, yet highly effective, at reducing sediment particulates dowN to nominal 1 micron in size. The pleated corrugated media provides increased surface area and strength, which results in extended life. End caps are fused to the cellulose media preventing bypass and forming a gasket sealing area.
Custom sizes and end cap configurations available.
- Type: Pleated Cellulose
- Construction: Resin Impregnated Cellulose Media
- Vinyl Plastisol End Caps
- Polypropylene Core
- Operating Temperature Range: 40ºF (4.4ºC) to 145ºF (63ºC)
- Micron Rating: Nominal 1, 5, 10, 20
carbon filter cartridges
Carbon Cartridges are available in the different styles listed below:
UPC (Pleated Carbon/NSF-42 Certified)
Premium pleated carbon filter incorporating absorption and purification benefits of coconut based carbon with functionally and filtration properties of a five-micron barrier filter.
Reduces chlorine, odor, sediment, dissolved organics and improves taste.
UGAC (GAC)*
GAC filter configuration maximizes fluid contact time with granular carbon, more effectively reducing unwanted taste, odor and chlorine. Internal post filter prevents unwanted downstream carbon fines.
Reduces chlorine, odor, sediment, dissolved organics and improves taste.
UGACR (GAC/Catalytic Carbon)
Highly effective for the reduction of chloramines and hydrogen sulfide from potable water. GACR profiles maximize fluid contact with media.
Reduces chloramines, hydrogen sulfide, and unwanted color, chlorine, sediments and improves taste.
UCB (Carbon Block)
Carbon Block with outer polyester wrap to prolong filter life and clean handling.
These cartridges reduce unwanted taste, color, odor and chlorine.
UFMC(Carbon/Polyester Wrap)
Food and beverage grade coconut carbon matrix locked into polyester nonwoven media felt wrap. Nominally rated at 5 microns with polypropylene core. All materials FDA food/beverage grade. No cellulose content.
These cartridges reduce unwanted taste, color, odor and chlorine.
UFMC-S(Carbon/Polyester Wrap-Stainless Steel Core)
Food and beverage grade coconut carbon matrix locked into polyester nonwoven media felt wrap. Nominally rated at 5 microns. Stainless steel for high pressure/temperature applications.
All materials FDA food/beverage grade. No cellulose content.
UPAMC (Carbon/Cellulose Wrap)
Carbon impregnated cellulose wrap is ideally suited for 5-micron pre-filtration and process solutions not compatible with synthetic media filters.
Used for prefiltration and process solutions.
UPAPC(String/Carbon Felt/String-Triple)
Three stage filtration. Outer pre-filter protects multi-layer carbon/cellulose reactive media. Final filtration is accomplished with multiple layers of string to preclude downstream carbon migration.
Triple cartridges are well suited for a wide range of closed-loop process applications.
UPACG (Radial Flow Carbon)*
Porous synthetic polymer outer shell filled with activated coconut based granular carbon. Internal spun bond polypropylene finishing filter prevents downstream carbon fines. For gaseous applications, this cartridge can be used to remove organics such as oil mist, water vapor and fine dust/scale particles. The outer shell possesses excellent filtering/coalescing properties. Most oil/water contaminants are trapped and collected on the shell. Used in potable water applications, this filter will effectively reduce chlorine, odor, sediment, dissolved organics while improving taste.
Effective filtering in coalescing and potable water applications
UPAGC(String/Granular Carbon/String-Triple)
Three stage filtration. Outer pre-filter protects activated granular carbon media. Final filtration is accomplished with multiple layers of string to preclude downstream carbon migration.
These cartridges are cellulose free and well suited for a wide range of closed-loop process/potable applications
Optional fill:
Media Reduces
- Catalytic Carbon–Chloramines/Hydrogen Sulfide
- Zeolite–Zinc, Copper, Silver, Lead, Cobalt, Nickel
- Clay–Hydrocarbon Contaminents
- DI Resin–Ion Contaminants, TDS Reduction
- Activated Alumina–Arsenic, Fluoride, Selenium, Humic Acid
Media Reduces
- Bone Char–Fluoride/Chlorine
- Calcite–pH Adjustment
- Corosex–Acid Neutralization
- Siliphos–Scale Reduction
- Brim–Iron, Manganese
- Titanium Oxide–Arsenic and Other Heavy Metals
Filter Bags
Liquid Filter Bags are a cost effective alternative for most fluid applications.
Manufactured using several media options to insure fluid compatibility these bags are available in 1 absolute to 1500 nominal micron ratings and are 100% interchangeable with all industry standard #1 through 9 filter bag housings.
Used extensively in hydrocarbon and natural gas processes as well as RO pre-filters, liquid filter bags offer ease of removal while containing contaminants for proper disposal.
Media
• Polyester or polypropylene felts, nominally rated at 50% efficiency. Its cost effectiveness makes it ideal for applications up to 200° F.
• Polyester multifilament meshes, nominally rated at 90% efficiency.
• Polypropylene Mesh Similar to nylon mono filament mesh, which has better acid resistance than nylon and is more cost effective for temperatures up to 200° F.
• Nylon mono filament meshes, nominally rated at 90% efficiency.
• Polypropylene high efficiently micro fiber, nominally rated at 95% efficiency.
• Polypropylene oil removal, nominally rated at 95% efficiency.
• Polyester or Polypropylene Graded Density, 99% absolute efficiency.
• Teflon, nominally rated at 95% efficiency.
• Cotton, nominally rated at 90% efficiency.
• Oil absorbing bags and inserts (hold 25 times their own weight in oil/petrochemical.
Lifting Devices
• Galvanized carbon steel.
• Stainless Steel.
• Molded plastic.
• Woven fabric.
Applications
• Pre RO membrane protection.
• Sand & algae, removal from sea water.
Applications
• Filtering amine, oil, gas, glycol, naphtha, waist vegetable oil and bio-diesel.
• Gas purification processes.
• Offshore filler stations.
• Food, beverage, potable water.
• Dairy processing.
• Pulp removal.
• Poultry and meat washing & packing.
