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442/442HP
Eliminates the need for equipment disassembly during seal installation and red
The 442 Split Mechanical Seal is ideal for equipment that is difficult and time-consuming to disassemble, such as large pumps, vertical pumps, and horizontal split case pumps. This proven, compact design can be used in a wide variety of equipment and process fluids.
The high performance split technology allows the 442 to operate from vacuum to high pressures. Its compact design allows for easy installation and a fit advantage on most equipment. Split, low-cost repair kits reduce ongoing maintenance costs even further. Designed with the installer in mind, the ball-and-socket O-Rings provide a quick and easy seal without the use of adhesives. Captive screws cannot fall out, making installation straightforward and reliable.
Note: The 442HP includes additional set screws, increasing the pressure capability of the seal to 30 bar g (450 psig)
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Product Features
✔ Easy and fast to install without equipment disassembly
✔ Proven design with superior performance
✔ Designed for simple installation in large equipment
5 key seal design features
✔ Balanced Design
✔ Non-Fretting
✔ Monolithic Seal Faces
✔ Stationary Design
✔ Protected Springs
Technical Data ↓
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25 mm to 915 mm (1.000 inch to 36 inch)
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ISO-3069-S, ASME B73.1, ASME B73.2, NSF61, ATEX
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442HP - High Pressure Holder
442M - Split Mixer Seal
442PR - Pumping Ring
Materials ↓
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CB, RSC, CR
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FKM, EPDM, FEPM, FFKM
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EN 1.4401 (316SS), Other Metallurgies available on request
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Elgiloy®
Operating Conditions ↓
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711 mm (28") Hg Vacuum to 20 bar g (300 psig)
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20 m/s ( 4000 fpm )
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Seal pressure capabilities are dependent on the fluid sealed, temperature, speed, and seal face combinations. For operation outside the limits and additional materials consult Chesterton Mechanical Seal Engineering.