250/250L
- Simple Installation and Increased Reliability for General Duty Applications
The 250 double cartridge seal provides sealing security that packing and conventional single mechanical seals cannot match. With a compact cartridge profile designed to fit standard ANSI/ISO process pumps, the seal is designed to install easily and reliably. The single screw clamp lock ring design (250L) further increases efficiency and reduces installation error.
Introducing optimized seal face geometry engineered through computer modeling and a durable double balanced design, the seal is engineered with improved lubrication, helping the seal to run cooler and longer. With proven Chesterton reliability, the 250 double cartridge seal is an economical upgrade to increase the life of your equipment.
Product Features
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- Economical upgrade from packing and single mechanical seals
- Field repairable cartridge design
- Increased barrier fluid flow to maximize cooling and reliability
Technical Data
| Size Range | 25 mm to 120 mm (1.000 inch to 4.750 inch) |
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| Applicable Standards and Approvals | ISO-3069-S, ASME B73.1 |
Materials
| Faces | CB, TC, SSC |
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| Springs | EN 2.4819 (Alloy C-276) |
Operating Conditions
| Pressure | 711 mm (28") Hg Vacuum to 20 BARg (300 PSIg) |
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| Temperature | -30 to 205 °C (-20 to 400 °F) |
| 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.
Resources
| Name | Download | File type | |
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Product Datasheet: 250L Cartridge Dual Seal (English) | 350 KB |