250

High Reliability for General Applications

Chesterton 250 Double Seal is a value leader in its class.  It is the ideal choice to reduce high maintenance costs and prevent wasteful leakage, shaft fretting damage, and inefficient downtime.  Designed for baseline applications and for upgrading packed or component sealed equipment, the 250 seal makes general industrial sealing simple, reliable, and affordable.​

 

Product Features

• Provides sealing security that conventional single seals cannot match
• Reliable cartridge design that increases seal life

Technical Data

Size Range 25 mm to 120 mm (1 inch to 4.75 inch )
Standards and Approvals ISO-3069-S, ASME B73.1, ASME B73.2, NSF61

Materials

Springs EN 2.4819 (Alloy C-276)
Elastomers FKM, EPDM, FEPM
Faces CB, SSC
Metals EN 1.4401
 

Operating Conditions

Pressure Limit Vacuum 711 mm Hg Vacuum ( 28 in Hg vacuum )
Pressure Limit Rotating 300 PSIg ( 20 BARg )
Speed Max 20 m/s ( 4000 fpm )
Temperature Max 570 °F ( 300 °C )
Temperature Min -67 °F ( -55 °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=
0 20 KB
.pdf