C&W Cartridges vs. competitors
|
In a comparison C&W found the following: 1. The center core diameter of most competitors is 5.15 , which is a 40% larger opening than C&W's cartridges. This wastes compressed air being blown into the core. When air is blown into a cartridge with a large opening by way of blow pipes pre-set at a certain distance from the filter media, you receive a pattern of air. This pattern is smaller than the opening thus allowing air to escape from the top of the core while compressed air enters. This gives less energy to move the material from the media. With a smaller core opening, the air is caped going into the core causing more energy to penetrate the media dispelling the dust. 2. C&W Filters use snap-in technology for a positive seal. Competitors use metal top cartridges using gaskets and hold-downs which have a poor sealing quality. Once a filter has been installed, the seal rings start to lose its elasticity and begin to break. The more you tighten the more they lose resiliency till you are metal to metal with no sealing capability. 3. The depth of the bonding agent on competitive filters is very thin, thus allowing the filter media to be blown out around the seal at the bottoms and the top. In an evaluation of competitive cartridges there are no anchors to hold the bottom on. In most cases the welds attaching the core and the bottom are of poor quality and do not hold up under pressure. This allows the bottom of the cartridge to pull apart from the filter media and rupture. NOTE: Four years ago, C&W made the above stated technological innovations to our cartridges, since this advancement we have not had one cartridge failure, rupture or breakage.
C&W Filter Elements vs. Metal Tops with Gaskets iPLAS Pleat Alignment System vs. Polyester Straps: The biggest and most important design and performance difference in the C&W filter element is its use of the patented iPLAS System. This molded polymer pleat alignment system replaces the old polyester strapping and hot glue support. iPLAS is heat, chemical and moisture resistant and significantly stronger than any other strap on filter element in the market. Standard Polyester strapping can fail easily from moisture attacking the hot metal glues, which also causes polyester strap failure. Finally, the iPLAS system aligns the pleats and eliminates pleat reversal caused when a normal polyester strap fails to hold pleats in place during operation. Each pulse cleaning cycle will increase the likelihood of a flex failure and holes in the media causing full element failure and leakage with traditional strapped elements in this case. In addition, the C&W element generally has more straps than normal elements, increasing pleat stability and lengthening service life. Consistent Positive Seal: The patent pending C&W Urethane Top Element creates a positive seal with the snap-band cuff from the moment of installation throughout the life of the filter element. It withstands temperature changes, moisture and most any other problem within a baghouse system. Installation is easy and assured. Once the element is pushed through the installed snap-band cuff, the seal is complete. With metal top cartridges that need gaskets and hold down devices to seal, many things can go wrong. First, it is very common for operators that install the elements to do so with varying levels or pressure and torque. With normal vibrations and temperature changes in a baghouse, these style elements can vibrate loose or the gaskets shrink and/or expand causing leakage. Many times this requires getting into the baghouse multiple times to re-adjust the hold down devices or even replacing gaskets. Proven High Temperature Performance: The C&W Element is manufactured with an engineered polymer that has proven to withstand temperature up to 256 F without failure in hundreds of applications. Metal Top cartridges are often times made with inferior potting compounds such as Plastisol and low cost two-part urethanes that can fail at temperatures as low as 140 F. In addition, these style cartridges rely on 3/8 or less of potting compound while the C&W elements have twice, 3/4" or greater, depth of potting compound ensuring that the pleated filter media will not separate from the top component like it can from the metal top design. Spiral Formed Perforated Metal Core: There isn't a stronger core on the market today. Expanded mesh cores that are hand rolled, tack welded, and pieced together to form longer cores are inherently weak and easily collapse under low-pressure differential. Once a standard filter element core collapses, it causes complete, eventual cartridge failure. You get what you pay for. C&W perforated metal formed cores are strong enough to withstand vacuum pressures from most common PD pumps used in pneumatic conveying systems, let alone any fan typically sized for dust collection. Hand formed expanded metal cores can easily collapse under 10-12 w.g. of static pressure in an upset condition. Why take the chance? Sonic Welded Seams: The C&W Element has a sonic-welded seam in the pleat pack of filter media versus a hot melt glue seam which is common in most other manufactured cartridges. The sonic welded seam is permanent and will not fail due to heat, moisture, or chemical problems. Normal hot-melt glue will fail under heat and moist air conditions, which will lead to immediate cartridge failure and leakage. Molded Urethane Bottoms vs. metal end caps: Without the superior C&W molded bottom design and proprietary urethane system, other cartridge manufacturers are forced to use shallow metal bottom pans to try and encapsulate the Plastisol or low-temp urethane potting compounds. These low performance adhesives (Plastisol and low-temp urethane) many times lose their bond strengths under temperatures as low as 140-160 F. This results in the bottom pans falling into the hopper of the collector or worse yet into the process, bin, or other area of product that can damage equipment and shut down the plant. Why take the chance?
|
