A.W. Chesterton Company is a global manufacturer of sealing and equipment reliability solutions, founded in 1884 on the Boston waterfront and headquartered in Groveland, Massachusetts, USA. Chesterton is widely recognized for its split mechanical seals, pump and valve packing, and ARC industrial coatings, serving process, energy, and manufacturing industries through sales and service locations in over 100 countries.
Chesterton's flagship fully split seal, designed for equipment that is difficult to disassemble, such as large, vertical, and horizontal split case pumps.
Combines split-seal installation without equipment teardown with the ease of a cartridge design, using a standard spare parts kit for repair.
Extends 442C split cartridge technology to a much larger range of shaft sizes.
Split seal variants engineered for mixers and agitators and for applications needing a pumping ring.
Braided, reinforced graphite packing with a corrosion inhibitor, suited to high-temperature, high-pressure service.
A 3-in-1 emergency epoxy putty and fiberglass wrap system for patching and sealing leaks, even on damp surfaces.
Split seals, cartridge seals, component seals, gas seals, slurry seals, and seal support systems for pumps, mixers, and agitators.
Pump, mixer, and agitator packing, valve packing, gasket and flange sealing, sheet gaskets, and semi-metallic gaskets.
Reciprocating, rotary, static, and spring energized sealing solutions for fluid power applications.
Industrial oils and greases, anti-seizes, maintenance specialties, cleaners and degreasers, and automatic lubricant dispensers.
Erosion, corrosion, and chemical-resistant coatings and abrasion-resistant composites for metal, resurfacing and thin film coatings for concrete, and leak sealing and structural repair products.
Sensor-based monitoring systems for pump configurations with remote accessibility.
Seal repair, field services, training, and consulting to support equipment reliability.
Valve testing to API and ISO protocols to help match valve and packing selection to critical applications.
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