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Chesterton 4400 Dual Concentric Gas Seal

Home » Shop » Chesterton 4400 Dual Concentric Gas Seal
Gas Seals

Accommodates Loss of Barrier Gas for Greater Sealing Reliability

Chesterton has developed technology that makes the use of a gas seal easy and intuitive. The 4400 delivers higher reliability with lower gas consumption than conventional gas-lubricated seals.

Transitions to a traditional liquid seal in the event of the loss of barrier gas and recovers to a gas seal upon restoring the barrier gas

Compact flush mount design that does not require modification of the stuffing box; fits more equipment types than conventional gas seals

Innovative in-Gland Control System (IGCS) dynamically controls gas pressure to process pressure​

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Categories: Gas Seals, Mechanical Seals
  • Description

Description

Zero fugitive emission, monitoring exempt, dual gas seal design
Full sealing recovering following loss of barrier gas
Unique design minimizes profiled gas face wear due to loss of barrier fluid
Seal transitions to a contacting wet mode during gas disruptions for greater sealing reliability
In-Gland Control System (IGCS) dynamically tracks process pressure to minimize gas consumption
No heat generation
Designed for ANSI/API pumps, compressors, and blowers

 

 

Operating ConditionsMaterials
Sizes25 mm to 90 mm (1.00″ to 3.625″)FacesCB, SSC
Pressure711 mm (28″) Hg Vacuum to 20 bar g (300 psig)ElastomersFKM, EPDM, FEPM, ChemLast™
Temperature55° C to 300° C (-67˚ F to 570˚ F)Metals1.4401 (316SS)
Speed25 m/s (5000 fpm)Springs2.4819 (Alloy C-276)
Fits ISO-3069-C

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