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4400
Double Concentric Gas Seal
The Chesterton 4400 Dual Concentric Gas Seal delivers reliable, zero-emission sealing for ANSI/API pumps, mixers, compressors, and blowers with minimal equipment modification. Its compact cartridge design provides non-contacting gas sealing under normal operation, eliminating face wear and emissions. If barrier gas supply is interrupted, the seal automatically switches to a low-emission, liquid-lubricated backup mode to protect equipment and avoid costly downtime.
Equipped with an integrated In-Gland Control System (IGCS), the 4400 optimizes barrier gas flow without the need for an external gas panel, reducing operating costs and easing compliance. Suitable for pressures up to 20 bar and temperatures up to 300°C, this seal meets strict environmental standards while ensuring durability and performance in demanding industrial applications.
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Product Features
✔ Offers low cost of ownership for a broad range of applications
✔ Advanced technology that is easy to install and operate
✔ Exclusive In-Gland Control System eliminates the need and expense of an external gas panel
✔ Eliminates atmospheric emissions
5 key seal design features
✔ Balanced Design
✔ Non-Fretting
✔ Monolithic Seal Faces
✔ Stationary Design
✔ Protected Springs
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25 mm to 90 mm (1.000 inch to 3.625 inch)
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ISO-3069C, ASME B73.1, ASME B73.2
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4410 - Slow Speed Mixer Design
Technical Data ↓
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CB, SSC
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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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EN 2.4819 (Alloy C-276)
Materials ↓
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711 mm (28") Hg Vacuum to 20 bar g (300 psig)
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-55 to 300 °C (-67 to 570 °F)
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25 m/s ( 5000 fpm )
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8 m/s ( 1500 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.