Custom Shaft Seals

The MECO AH-series seals represent the latest refinement of MECOs classic elastomer-driven seal design. While using the same, patented principle of the MECO EAS, the AH series is designed to eliminate the process of setting seal face pressures. For the user who must frequently sanitize seals, this means simple, trouble-free installation after cleaning. AH series seals are for use in low to moderate abrasive powder processes, on ribbon blenders and paddle mixers, reactors, screw conveyors, bucket elevators and similar blending or conveying machinery. AH and AP-series seals are also used as replacements for lip seals to isolate lube oil in bearings. These designs can be used in many cases where installation clearances are too tight to permit the use of other MECO seal types. The AH seal uses heavy stainless plate stators, to ensure flatness and long life, despite extensive handling. The split AHS seals parts can be easily assembled on the shaft and simply bolted into position. Proper seal face pressure is established just by snugging the assembly bolts. There is no calibration process, and correct face pressures are reliably applied, time and again.Despite the AHs "set and forget" design, the seal incorporates both a basic adjustment mechanism and monitoring provisions to allow operators to perform preventive maintenance before product leakage occurs.AHU unsplit and AHS split seals are particularly well-suited to food and pharmaceutical applications. They are ideal for mixers processing dry beverage, spice and flavoring mixes, where frequent product changes and washdowns are required. The seals are fitted with flush water inlet and drain ports, as well as compressed air purge connection ports. Some, like the seal at right, above, can be configured for use in explosive environments and can be certified under the 94-9EC European ATEX Directive.AH seals are custom-designed to fit in unusual space restrictions on a wide variety of machinery types. MECO designers work with our clientele to provide the best fit and most user-friendly design for each application. No standard design = No limitations. The AH series "little brothers", the AP series seals, provide the same predictable performance and ease of adjustment as the AH series, but in a smaller package, for installation in even tighter environments. Both have been built into existing lip seal housings and can be highly customized to fit your machinery, such as the multi-shaft compactor at left.If you have a sealing problem, MECO's engineering staff will be happy to recommend the best seal for your equipment. Just fill out a copy of our Seal Application Data Sheet and hit the "Send" button at the bottom. We'll be happy to furnish a quotation. Simple installation Easy cleaning and sanitizing Flush and drain ports built in Available split, unsplit or partially-split Standard 1/4" TIR runout; more where needed