442

Split Mechanical Seal
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.
 

Product Features

  • Easy and fast to install without equipment disassembly
  • Proven design with superior performance
  • Non-fretting to equipment
  • Compact design
  • Variants: Mixer version available

Technical Data

Size Range 25 mm to 915 mm (1 inch to 36 inch )
Standards and Approvals ISO-3069-S, ASME B73.1, ASME B73.2, NSF61, ACS, ATEX

Materials

Springs Elgiloy®
Elastomers FKM, EPDM, FEPM
Faces CB, RSC, CR
Metals 316SS, EN 1.4401, Other Metallurgies available on request
 

Operating Conditions

Pressure Limit Vacuum 711 mm Hg Vacuum ( 28 in Hg vacuum )
Pressure Limit Rotating 450 PSIg ( 30 BARg )
Speed Max 20 m/s ( 4000 fpm )
Temperature Max 250 °F ( 120 °C )
Notes

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.

 

Let's talk

For inquires about products, sales, or to request a quote, please contact our Sales Office.

Resources

  Name Download File type
 Industry=|Language=English|LanguageId=en|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Catalog: Chesterton Core Products - Fluid Sealing, Lubricants/MRO, Coatings (English) 8767 KB
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 Industry=|Language=Français|LanguageId=fr|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Catalog: Chesterton Core Products - Fluid Sealing, Lubricants/MRO, Coatings (Français) 5934 KB
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 Industry=|Language=English|LanguageId=en|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Hydropower: Split Mechanical Seals for Water Turbine Main Shaft Sealing 2959 KB
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 Industry=|Language=English|LanguageId=en|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Product Brochure: 442C and 442C XL Cartridge Split Seal 12512 KB
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 Industry=Water Treatment|Language=English|LanguageId=en|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Product Brochure: Water and Wastewater Industy (English) 2700 KB
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 Industry=Water Treatment|Language=Français|LanguageId=fr|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Product Brochure: Water Wastewater Industry (French) 1251 KB
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 Industry=Water Treatment|Language=日本語|LanguageId=ja|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Product Brochure: Water and Wastewater Industry (Japanese) 1364 KB
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 Industry=Water Treatment|Language=Português|LanguageId=pt|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Product Brochure: Water and Wastewater Industry (Portuguese) 1254 KB
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 Industry=|Language=Español|LanguageId=es|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Brochure: Chesterton Split Seals: Solutions for Large Rotating Equipment (Espanol) 6877 KB
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 Industry=|Language=Français|LanguageId=fr|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Brochure: Chesterton Split Seals: Solutions for Large Rotating Equipment (Francais) 6948 KB
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 Industry=|Language=Italiano|LanguageId=it|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Brochure: Chesterton Split Seals: Solutions for Large Rotating Equipment (Italiano) 6666 KB
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 Industry=|Language=Nihongo|LanguageId=ja|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Brochure: Chesterton Split Seals: Solutions for Large Rotating Equipment (Nihongo) 7610 KB
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 Industry=|Language=Português|LanguageId=pt|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Brochure: Chesterton Split Seals: Solutions for Large Rotating Equipment (Portugues) 6825 KB
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 Industry=|Language=Svenska|LanguageId=sv|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Brochure: Chesterton Split Seals: Solutions for Large Rotating Equipment (Svenska) 6784 KB
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 Industry=HydroPower|Language=English|LanguageId=en|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Hydropower Industry Solutions (English) 2457 KB
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 Industry=|Language=English|LanguageId=en|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Brochure: Chesterton Split Seals - Solutions for Large Rotating Equipment (English) 1773 KB
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 Industry=|Language=Español|LanguageId=es|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Brochure: Chesterton Split Seals (Spanish) 1816 KB
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 Industry=|Language=Français|LanguageId=fr|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Brochure: Chesterton Split Seals 1825 KB
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 Industry=|Language=Italiano|LanguageId=it|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Brochure: Chesterton Split Seals 1794 KB
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 Industry=|Language=Nihongo|LanguageId=ja|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Product Brochure: Split Seals 1714 KB
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 Industry=|Language=Português|LanguageId=pt|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Brochure: Split Seals 1811 KB
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 Industry=|Language=Svenska|LanguageId=sv|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Product Brochure: Split Seals 1805 KB
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 Industry=|Language=English|LanguageId=en|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Brochure: Geothermal Power Industry Solutions (English) 2324 KB
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 Industry=Water Treatment|Language=Español|LanguageId=es|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Product Brochure: Water and Wastewater Industry (Español) 1253 KB
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 Industry=|Language=Ceština|LanguageId=cz|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Product Brochure: 442 Split Seal (Czech) 1040 KB
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 Industry=|Language=English|LanguageId=en|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Product Brochure: 442 Split Seal (English) 1030 KB
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 Industry=|Language=Español|LanguageId=es|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Product Brochure: 442 Split Seal (Español) 1033 KB
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 Industry=|Language=Finnish|LanguageId=fi|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Product Brochure: 442 Split Seal (Finnish) 1041 KB
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 Industry=|Language=Français|LanguageId=fr|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Product Brochure: 442 Split Seal (Français) 1027 KB
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 Industry=|Language=日本語|LanguageId=ja|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Product Brochure: 442 Split Seal (Japanese 日本語) 1138 KB
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 Industry=|Language=Nederlands|LanguageId=nl|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Product Brochure: 442 Split Seal (Dutch) 1026 KB
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 Industry=|Language=Português|LanguageId=pt|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Product Brochure: 442 Split Seal (Portuguese) 1027 KB
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 Industry=|Language=Slovencina|LanguageId=sk|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Product Brochure: 442 Split Seal (Slovencina) 1025 KB
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 Industry=|Language=Polski|LanguageId=pl|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Product Brochure: 442 Split Seal (Polski) 1031 KB
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 Industry=|Language=Hungarian|LanguageId=hu|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Product Brochure: 442 Split Seal (Hungarian) 1043 KB
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 Industry=|Language=Korean|LanguageId=ko|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Product Brochure: 442 Split Seal (Korean) 1080 KB
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 Industry=|Language=Deutsch|LanguageId=de|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Product Brochure: 442 Split Seal (Deutsch) 1040 KB
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 Industry=|Language=Svenska|LanguageId=sv|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Product Brochure: 442 Split Seal (Swedish) 1039 KB
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 Industry=Water Treatment|Language=Italiano|LanguageId=it|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Product Brochure: Water and Wastewater Industry (Italiano) 1243 KB
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 Industry=|Language=Italiano|LanguageId=it|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Product Brochure: 442 Split Seal (Italiano) 1032 KB
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 Industry=Water Treatment|Language=Deutsch|LanguageId=de|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Product Brochure: Water and Wastewater Industry Solutions (Deutsch) 1253 KB
.pdf
  Name Download File type
 Industry=|Language=Deutsch|LanguageId=de|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Installation Instructions: 442 Split Seal - 200mm to 305mm; 8 to 12 inch shafts (Deutsch)) 2922 KB
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 Industry=|Language=Italiano|LanguageId=it|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Installation Instructions: 442 Split Seal - 200mm to 305mm; 8 to 12 inch shafts (Italian) 2905 KB
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 Industry=|Language=Nihongo|LanguageId=ja|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Installation Instructions: 442 Split Seal - 200mm to 305mm; 8 to 12 inch shafts (Japanese) 3060 KB
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 Industry=|Language=Português|LanguageId=pt|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Installation Instructions: 442 Split Seal - 200mm to 305mm; 8 to 12 inch shafts (Portuguese) 2909 KB
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 Industry=|Language=Svenska|LanguageId=sv|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Installation Instructions: 442 Split Seal 200mm to 305mm; 8 to 12 inch shafts (Swedish) 2903 KB
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 Industry=|Language=Dansk|LanguageId=da|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Installation Instructions: 442 (Dansk) 516 KB
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 Industry=|Language=Deutsch|LanguageId=de|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Installation Instructions: 442 (Deutsch) 3135 KB
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 Industry=|Language=English|LanguageId=en|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Installation Instructions: 442 (English) 677 KB
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 Industry=|Language=Español|LanguageId=es|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Installation Instructions: 442 (Espanol) 3141 KB
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 Industry=|Language=Finnish|LanguageId=fi|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Installation Instructions: 442 (Suomi) 513 KB
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 Industry=|Language=Français|LanguageId=fr|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Installation Instructions: 442 (Francais) 3136 KB
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 Industry=|Language=Italiano|LanguageId=it|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Installation Instructions: 442 (Italiano) 3143 KB
.pdf
 Industry=|Language=Nihongo|LanguageId=ja|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Installation Instructions: 442 (Nihongo) 5301 KB
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 Industry=|Language=Nederlands|LanguageId=nl|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Installation Instructions: 442 (Nederlands) 516 KB
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 Industry=|Language=Norsk|LanguageId=no|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Installation Instructions: 442 (Norsk) 3408 KB
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 Industry=|Language=Português|LanguageId=pt|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Installation Instructions: 442 (Portugues) 3142 KB
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 Industry=|Language=Svenska|LanguageId=sv|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Installation Instructions: 442 (Svenska) 3557 KB
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 Industry=|Language=English|LanguageId=en|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Installation Instructions: 442 Large Shaft Diameter (English) 1345 KB
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 Industry=|Language=English|LanguageId=en|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Installation Instructions: 442 Split Seal - 200mm to 305mm; 8 to 12 inch shafts (English) 7502 KB
.pdf
 Industry=|Language=Français|LanguageId=fr|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Installation Instructions: 442 Split Seal - 200mm to 305mm (Francais) 2924 KB
.pdf
 Industry=|Language=Español|LanguageId=es|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Installation Instructions: 442 Large Shaft Diameter (Español) 1437 KB
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  Name Download File type
 Industry=|Language=English|LanguageId=en|ProductLine=Rotating|MaterialCategory=|MaterialCode=
KRYTOX-MSDS_EN.pdf 20 KB
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