Chesterton.

About Chesterton

A.W. Chesterton Company was founded in 1884 in Boston, Massachusetts, by Albert Worcester Chesterton. The company began by supplying packing and sealing products to the industrial customers of New England, the mills, factories and process plants that needed reliable ways to prevent leakage from pumps, valves, mixers and other rotating and reciprocating equipment. That founding purpose remains at the centre of the business today, more than 140 years later, even as the product range has expanded into sophisticated mechanical seals, specialty lubricants, protective coatings and condition monitoring services.

Chesterton is still privately held, operating as a family-owned business with a global network of sales engineers and technical service specialists. That technical service model is an important part of how Chesterton goes to market. The company doesn’t just sell sealing products; it diagnoses equipment sealing problems and recommends solutions based on the specific operating conditions, namely fluid chemistry, temperature, pressure, speed and equipment condition, that determine which seal design or packing type will give the longest service life.

For maintenance and reliability engineers in UK process industries, Chesterton is a name associated with extending the mean time between equipment failures and reducing the cost of reactive maintenance on pumps and rotating machinery. A pump that is correctly sealed with the right packing or mechanical seal for its service conditions will run considerably longer between maintenance interventions than one fitted with a generic alternative, and the labour cost of pump maintenance typically far exceeds the cost of the sealing product itself.

Products We Can Supply from Chesterton

Braided packing and gland packing. Chesterton’s braided packing range covers PTFE, graphite, aramid, carbon and combination packing rings for centrifugal and reciprocating pumps, valves and compressors. The 1700 series PTFE-based packings and 400 series graphite packings are among the most widely used in UK process industries. Correct packing selection and installation is critical to achieving the expected service life, and Chesterton’s technical resources support both.

Mechanical seals. Cartridge and component mechanical seals for centrifugal pumps, mixers and agitators. Chesterton’s 442 and 155 series mechanical seals are designed for retrofitting onto a wide range of equipment without requiring pump modification, which simplifies the upgrade from packing to mechanical seal on existing plant. Engineered seals are also available for challenging services including high temperature, abrasive, toxic and cryogenic applications.

Industrial lubricants and specialty chemicals. High-performance greases, oils, thread compounds, anti-seize products and specialty lubricants for severe-service applications. The Chesterton 615 and 785 greases are widely used in process industries for bearings operating in high-temperature, high-moisture or contaminated environments. The range also includes copper-based and nickel-based anti-seize compounds for high-temperature fastener assembly and dissimilar metal applications.

Protective coatings and repair compounds. Ceramic-reinforced epoxy coatings for pump casings, impellers, pipework and equipment surfaces subject to erosion, corrosion and chemical attack. The 2100 and 2200 series coatings are used to extend the service life of pump casings and pipework in environments where metal loss through erosion or corrosion would otherwise require frequent component or pump replacement.

Industries

Chesterton products are used in water and wastewater treatment, oil and gas production and refining, chemical and petrochemical processing, power generation, food and beverage production, pulp and paper, pharmaceutical manufacturing, mining and minerals processing, and any industry with rotating equipment, including pumps, mixers, compressors and agitators, where sealing reliability and maintenance cost are operational priorities.