Molded End Elements
Product Code: Molded End Elements

  • Rugged self-sealing polyurethane ends – not plastisol (PVC)
    • No bypass or cracking with age
  • Textile media – not paper
    • Handles moisture, vibration, and abuse
  • Genuinely cleanable
    • Practical & economical
  • Exceptional performance
    • Lower ΔP and longer life

More than 50 years ago, molded end filter elements challenged the worst of punishments in industrial and military services. Today, with synthetic rubber ends, they are still arguably the finest air/gas filters ever made.

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Molded End Elements

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CROSS REFERENCING / OEM REPLACEMENT
We provide high-quality replacements for dozens of filter brands including Dollinger, Consler (Graver), Solberg (SMI), Air Maze, IFM, Clark-Reliance, Sunshine, Sidco, NAFCO, Ingersoll Rand, Stoddard, Endustra, Atlas Copco, and many more.

Please contact us today with your part number or specifications for a quote.

RUGGED CONSTRUCTION
Standard construction includes solid rubber (polyurethane) ends, heavy-duty perforated metal center cores, and radial pleated filter media jacketed with woven wire screen. This screen jacket holds fins open, greatly improving flow capacity, service life, and durability. Textile media are well known for superior performance and clean-ability vs. fragile paper media. This industrial grade construction has been long proven to yield higher flows, longer life, and lower ΔP.

POLYURETHANE MOLDED ENDS
The filter media, support screens, and element cores are bonded together by the polyurethane end seals. Our polyurethane is much more rugged and durable than lesser polyvinyl elastomers used by others. It will not crumble in service as under-cured PVC can. PVC is as much as 50% plastisizer. When this plastisizer evaporates, PVC ends can crack and fail.

Production molds are carved from solid stock (no stampings) for exacting end seals. These seals stop dirt and resist most oils, solvents, moisture, or vibrational punishment. They can withstand continuous service to 200° F.

OPTIONS
Core & Wire – Center core material options include carbon steel, 304SS, 316SS, or electro galvanized expanded metal. Thicknesses up to 11 gauge can be selected for high collapse/burst pressure requirements. The standard woven wire support is epoxy coated aluminum, but 304SS, 316SS, and galvanized support screen is also available.

Filter Media – Our standard media is 10 µm polyester felt, but dozens of media options are available for particulate or coalescing applications. Efficiencies vary from 750 µm down to 0.1 µm.

End Seals – Other end seal options include black PVC, oil and gas resistant PVC, white PVC (for use in processes related to food), and silicone RTV good to 500° F. For high-heat and chemically aggressive applications, metal end designs are available with special potting and gasket material.

Size – Typical sizes include overall heights to 40″, outside diameters to 36″, and inside diameters from 1″ to 30″. If you need a larger element, please contact us for a custom quotation.

This standard end seal employs one or typically two narrow raised circular sealing surfaces. The center most seal usually stands directly above the center core, ensuring column strength is passed along to the seal when installed in service. The IR end seal employs a single raised sealing surface directly above the center core at the very inside diameter of the filter. When the lid of a filter housing has a domed cross section, the IR seal is occasionally necessary to avoid a fit conflict at the shoulder.

Molded End Filter Elements can also be cleaned in soap and water in a similar fashion. To clean the vacuum filter elements from our own shop filters, we simply grasp a dry soiled element between two hands with its pleats parallel to the floor, and alternately “bounce” it against the floor, lift, rotate, and bounce it again and again until the majority of the dust has dislodged and fallen away. It takes only a minute or so. The element has a slightly shorter service life the 2nd time around, and when the entrapped dirt gets the better of the battle, we put a new element in service. Compressed air sprays can also work well, just be careful not to blow apart the fibers of more fragile media like fiberglass felts with the gun.

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