442/442HP

Eliminates the need for equipment disassembly

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).

 

Product Features

  • Easy and fast to install without equipment disassembly
  • Proven design with superior performance
  • Designed for simple installation in large equipment

Five Key Seal Design Features

Product Literature

Technical Data

Size Range 25 mm to 915 mm (1.000 inch to 36 inch)
Applicable Standards and Approvals ISO-3069-S, ASME B73.1, ASME B73.2, NSF61, ATEX
Variants 442HP - High Pressure Holder
442M - Split Mixer Seal
442PR - Pumping Ring

Materials

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

Operating Conditions

Speed 20 m/s ( 4000 fpm )
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.