- Home
- Company Overview
- Applications
- Solutions
- Materials & Technologies
- Trade Shows
- News
- Contact
Rigid tubes are constructed using plastic mesh, which is used to provide an open surface area for trapping particulates as fluid passes through the element. Tubes are designed to house the core, helping to protect it from external forces and contaminates. Cages are then placed around the tube to help support the core while also providing additional structural integrity. Each component plays an important role in helping maximize filtration performance and efficiency.
Conwed extruded rigid tubes and cages are high-strength plastic mesh cylinders with a square netting pattern, engineered to support and protect filter elements in demanding filtration systems. These extruded plastic cores feature an open mesh design that maximizes flow area for efficient fluid passage and traps particulates as the fluid moves through, all while safeguarding delicate filtration media from damage.
Our Conwed rigid tubes and filter cages are produced via a single-step, continuous extrusion process that forms a seamless mesh structure with integral joints. This one-piece extruded construction yields a consistent cylindrical shape and square netting configuration, making the tubes inherently stronger and more durable than alternative seamed or welded netting tubes. The result is a rigid support tube with exceptional structural integrity, designed to endure high pressures and the rigors of industrial filtration.
Conwed extruded rigid tubes are widely used to support, contain, and separate materials across various industrial applications. Filtration support is their primary role: these rigid mesh tubes serve as center cores inside filter cartridges and as outer plastic cages around filter elements, adding strength and preventing collapse or external damage to the filter media. By providing robust filtration media support, they protect sensitive pleated media and ensure consistent flow and pressure distribution. Thanks to their high strength and chemical-resistant construction, Conwed tubes and cages deliver reliable long-term performance in diverse filtration systems – from reverse osmosis water purifiers to hydraulic and wastewater filters, and even food & beverage processing equipment. Notably, our extruded tubes leverage the same proven square-netting extrusion technology used in other Conwed netting products, ensuring uniform quality and compatibility across our filtration support components.
Naltex™ extruded flexible netting sleeves are versatile diamond-pattern protective mesh sleeves engineered to shield components and support filter media in demanding industrial applications. These plastic netting sleeves offer exceptional stretch-and-recovery properties, enabling them to wrap securely around straight shafts, cylinders, and filter elements to prevent surface damage. Available in cut-to-length pieces and five distinct sleeve styles (each providing different protection levels), Naltex sleeves deliver unmatched durability to keep your parts and filtration elements in pristine condition.
Naltex sleeves feature an extruded diamond netting design that yields a strong yet flexible mesh structure. This biplanar diamond mesh provides a snug, elastic protective layer around an item, absorbing impacts and preventing scratches or dents during handling, storage, or operation. The inherent memory effect of the polymer netting allows the sleeve to stretch and recover to its original shape, ensuring a secure fit and the ability to reuse sleeves without loss of performance. This flexible design is ideal for parts protection (covering everything from machined components to high-pressure cylinders) as well as serving as outer filter sleeves that protect filter media pleats from deformation or damage in cartridge filters. The result is a lightweight protective solution that maintains integrity even under vibration or pressure, stabilizing delicate filter pleats while allowing unimpeded flow.
Naltex™ sleeves are made from high-performance engineered polymer resins, giving them inherent resistance to rust and corrosion. Unlike metal mesh wraps, these corrosion-free filter sleeves will not degrade when exposed to moisture or chemicals, which ensures long-term durability and helps you avoid frequent replacements. In addition, the sleeves’ plastic construction makes them fully incinerable, allowing for easy, eco-friendly disposal after use. This eliminates the costs and difficulties associated with disposing of traditional wire or metal supports, and supports sustainability initiatives by reducing waste. In fact, Naltex net sleeves serve as a lightweight, highly durable alternative to metal mesh outer wraps, delivering comparable mechanical strength and chemical robustness without the downsides of metal. They also remain non-conductive and non-sparking, improving safety in certain environments. Overall, these material advantages make Naltex sleeves a cost-effective, maintenance-free choice for protecting parts and filters in harsh or sensitive conditions.
Naltex extruded sleeves can be tailor-made to your exact requirements. We offer a broad size range - sleeves are available in diameters from ¼” up to 24” (≈6.3 mm to 610 mm) and various lengths, with an assortment of colors to choose from. This extensive range means you can find the perfect fit for any application, from small precision components to large industrial filter cartridges. We also provide multiple resin options and formulations: select from various polymer materials that are compatible with aggressive chemicals and high temperatures, ensuring reliable performance even in harsh environments. If your operation has unique requirements, our engineering team can fine-tune resin blends to achieve any desired stretch profile or stiffness, so your sleeves meet specific strength, flexibility, or regulatory needs. Every Naltex sleeve is manufactured under stringent tolerances, guaranteeing consistent mesh quality and performance. This level of customization ensures you get a flexible protective sleeve solution perfectly suited to your individual application.
When it comes to reliable protective outer wrap, choosing the right material can make all the difference. Plastic netting sleeves offer a range of advantages over traditional metal outer wraps, redefining durability, processing, and performance:
In industrial and heavy-duty filtration systems, rigid support tubes and filter cages are essential structural components that determine whether a filter can withstand high pressures, rapid flow rates, and harsh conditions.
For filter manufacturers and users alike, protecting the filter media is a top priority. Enter filtration sleeves – often made from extruded plastic netting – that wrap around filter elements to serve as guardians against damage.
In the world of filtration, netting components are quietly vital. These flat or tubular plastic mesh structures are used across the whole range of applications – from air filters to water treatment systems, industrial process filtration and…
In demanding processes, the wrong plastic can quietly swell, crack, or deteriorate in harsh chemicals or heat. Pleat supports that degrade can lead to pleats collapsing or blocking flow, causing higher pressure drops, shorter filter life, or even…
PPS pleat support and separatot netting provide robust, high-temperature and chemical-resistant support to maintain pleat spacing and flow in harsh filtration conditions. Learn more about our PPS netting in harsh filtration environments.
In filtration, polyphenylene sulfide (PPS) stands out as a go-to polymer for harsh conditions.