Molded End Filters: Revolutionizing Air and Gas Filtration

Air and gas filtration is a crucial component of various industries, from industrial operations to military applications. The need for filters that can withstand harsh conditions and deliver optimal performance has led to the development of molded end filter elements. These filters, with a history spanning over 70 years, have consistently proven themselves to be the gold standard in air and gas filtration. Their robust construction and synthetic rubber ends set them apart as arguably the finest filters ever made.


The heart of these filters lies in their end seals, made of synthetic rubber, which offer numerous advantages:

  • No Bypass, No Cracking with Age: These filters are designed to prevent any bypass, making them a reliable choice for various applications. They also resist cracking and age-related issues, ensuring longevity.
  • Durability in Extreme Conditions: Unlike filters with lesser polyvinyl elastomers, these filters are engineered to withstand harsh environments. Synthetic rubber will not crumble in service, even under challenging conditions. In contrast, PVC can lose up to 50% of its plastisizer, leading to cracks and failures when the plastisizer evaporates.


These filters come in various sizes to cater to different requirements, with overall heights of up to 40 inches, outside diameters as large as 36 inches, and inside diameters ranging from 1 to 30 inches. For those with specialized needs, custom solutions are readily available.

Exceptional Filtration Capabilities: The Core Matters

The core of these filters plays a crucial role in their performance. A weak core can compromise the entire filter's functionality. To address this, these filters employ 16 and 20 gauge perforated steel with 58% open area, offering low differential pressure (ΔP) and high column strength. These cores are specifically designed to support the innermost end seal effectively.


The Magic of Textile Media: Setting New Standards

What truly sets these filters apart is their use of textile media, in contrast to traditional paper media. This choice brings several advantages:

  • Higher Flow Capacity: Textile media allows for higher flow capacity compared to paper media, ensuring efficient filtration.
  • Extended Service Life: These filters are designed to last longer, thanks to their textile media.
  • Lower ΔP: With textile media, these filters maintain lower differential pressure, ensuring smooth operation.

High-Temperature Resistance: Defying Extreme Conditions

Extreme temperatures can pose a significant challenge in filtration. These filters are engineered to perform excellently even in harsh temperature conditions. They can withstand continuous service at temperatures up to 250°F and intermittent service at 350°F*. For applications that demand even higher-temperature resistance, optional silicone rubber ends are available, capable of serving at temperatures close to 500°F.

Filtration Efficiency: Meeting the Strictest Standards

One of the unique aspects of these filters is their filter media. They offer a range of filter media options, including #5 polyester felt, #7 polyester medium, #51 fiberglass, #904 HEPA grade medium, #916 medium with activated carbon, and more. Each of these media types is tailored to meet specific filtration needs and applications.

Data-Backed Assurance: Independent Test Data for Performance

Unlike our competitors, we offer third-party independent test data on our media. This ensures proper sizing for vessel applications and that our filters not only meet the required specifications but also deliver the desired removal efficiency.


The Power of Jacketed Media: Reinventing Filtration

These filters use a unique approach to filter media, pleating textile filter media between layers of epoxy-coated wire screen. This design yields rugged jacketed media with only a quarter of the resistance to flow found in traditional paper media. The jacketed fins are resistant to collapse, offer exceptionally high flow, and have long life, often lasting up to a year. Furthermore, they can withstand moisture, vibration, pulse flow, and other service hazards. This design also simplifies cleaning with air guns or spray cleaning units.

Why Settle for Less?

When it comes to filtration, compromise is not an option. Opting for PVC ends that soften at elevated temperatures or crumble when undercured is a choice best avoided. These rubber molded end filters are a testament to reliability, designed to withstand the harshest conditions while delivering top-tier filtration performance.

Conclusion: The Future of Filtration

For those in need of filtration solutions that combine exceptional performance, durability, and versatility, rubber molded end filters are the answer. With a legacy of over five decades and a commitment to superior technology, they stand out as the go-to choice for demanding industrial and military applications.

Visit our website to explore additional options and find the perfect filtration solution for your unique needs.

Note: Performance considerations may vary with elevated service temperature and environments. Metal end options with high-temperature potting materials are available for extreme conditions.


Breathing Room...

Do you really care if dirt gets past your filter?

Is it worth trying to save a buck on paper rather than rugged textile media?

Oddly enough, paper elements cost much more in the long run. Paper pleats crack where you can’t see. The light bulb trick won’t reveal the failure(s) either. Moisture can ruin paper. And, be very careful of vibration or handling damage.

Elements with high performance textile media benefit from 1/3rd the resistance to flow of paper media. They allow open pleat spacing, higher dirt holding capacity, are practical to clean, have lower ∆P, and longer life. Rugged polyester felt media won’t crack, tolerates being soaking wet, and takes a beating. Protect your equipment, use textile media.

Contact Us

Shawndra Products™, Inc.
Rush Certified and A&E Testing

1514 Rochester Street
Lima, NY 14485
Phone: 585-624-4500
Fax: 585-624-5300
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