description Chesterton 4400 Overview
The Chesterton 4400 is an industrial mechanical seal produced by the American engineering firm A.W. Chesterton, engineered for reliable fluid containment in rotating equipment. As a hybrid, dual-cartridge seal, it is designed to handle challenging industrial applications, including those involving abrasive slurries and corrosive chemicals. It is utilized in heavy-duty processing equipment such as pumps and agitators within the chemical processing, pulp and paper, and mining industries.
insights Ranking position
Chesterton 4400 ranks #48 of 131 in the Seal ranking, behind Juan Fernández Fur Seal, ahead of SKF HDS7.
help Chesterton 4400 FAQ
Is the Chesterton 4400 a contacting liquid seal or a gas seal?
The 4400 is a double concentric, non-contacting gas seal. It is designed as an upgrade for troublesome liquid-lubricated seals while limiting atmospheric emissions.
Does the Chesterton 4400 require an external gas control panel?
Chesterton's In-Gland Control System regulates the barrier gas within the gland, eliminating the usual external gas panel. This reduces auxiliary equipment around pumps and other rotating machinery.
What shaft sizes can the Chesterton 4400 accommodate?
Chesterton specifies a size range from 25 to 90 mm, or 1.000 to 3.625 inches. Listed applications should still be checked against the actual pressure, speed, temperature, and sealed fluid.
What happens to a Chesterton 4400 if the barrier gas is interrupted?
Its dual concentric arrangement can transition to liquid-lubricated contacting operation when the gas supply is lost. It returns to non-contacting gas operation after the supply is restored, helping equipment remain available during a temporary interruption.
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