Chesterton 477-1T Carbon/PTFE PackingChesterton 477-1T Carbon/PTFE Packing

A tough, yet pliable, continuous filament carbon yarn packing impregnated throughout with PTFE to provide a non-contaminating, non-staining carbon yarn packing.

Technical Data
MaterialsCarbon yarn coated with PTFE, blocking agent and corrosion inhibitor
ApplicationsVirtually all pumps and valves, especially tough pulp and paper applications
Pressure14 bar g (200 psig)
  • 10 m/s (2000 fpm)
  • 15 m/sec (3000 fpm) when used as a bottom anti-extrusion ring with Chesterton 1400R
Temperature260˚C (500˚F)
Chemical ResistancepH 0 to 14 except strong oxidizers

Chesterton 1830 SSP Slurry Pump PackingChesterton 1830 SSP Slurry Pump Packing

Designed with a hybrid yarn combining advanced, expanded graphite PTFE yarn with carbon yarn reinforcement that runs through the cross section of the packing for easy extraction.

Technical Data
MaterialsCarbon reinforced expanded graphite PTFE
ApplicationsSlurry pumps, mineral handling slurries, tailing pumps
Pressure28 bar g (400 psig)
Speed18 m/s (3600 fpm)
Temperature260°C (500˚F)
Chemical ResistancepH 0 to 14 with exception of strong oxidizers in the 0 to 2 pH range

Chesterton 1400R Carbon-Reinforced Graphite PackingChesterton 1400R Carbon-Reinforced Graphite Packing

Combines the unique sealing properties of flexible graphite with the high strength of carbon fiber.

Technical Data
MaterialsCarbon fiber reinforced flexible graphite packing
ApplicationsProcess pumps, boiler feed pumps, block valves, refiners, agitators, and mixers
  • 14 bar g (200 psig) rotating applications
  • 275 bar g (200 psig) valves
Speed20 m/s (4000 fpm)
  • Min -240°C (-400°F)
  • Max 650°C (1200˚F) steam
  • Max 455°C (850˚F) oxidizing atmosphere
Chemical ResistancepH 0 to 14 except oleum, fuming nitric acid, and aqua regia

Applicable Standards and Approvals: BAM

Chesterton GraphMax PackingGraphMaxTM – Structurally Reinforced Graphite Packing

Dramatically improves the packing’s resistance to extrusion and blow out— one of the limitations with traditional flexible graphite tape packings.

Technical Data
MaterialsGraphite with carbon yarn reinforcement and a high-temperature blocking agent
ApplicationsVirtually all pumps and valves, including steam service
  • 260 bar g (3800 psig)* valves
  • 28 bar g (400 psig) pumps
Speed17 m/s (3400 fpm)
  • Maximum 650°C (1200°F) steam service
  • Minimum –240˚C (–400˚F)
Chemical ResistancepH 0 to 14 except oleum, fuming nitric acid, and aqua regia

*For higher pressure limits consult Chesterton Engineering.

Chesterton 370 Heat-Dissipating Packing370 – Lubricated Carbon

Unique carbon and graphite construction provides plant-wide utility off a single spool.

Technical Data
MaterialsCarbon yarn with graphite and other high-temperature lubricants
ApplicationsVirtually all pumps
Pressure35 bar g (500 psig)
Speed18 m/s (3600 fpm)
Temperature315°C (600°F) steam
Chemical ResistancepH 0 to 14 except oleum, fuming nitric acid, aqua regia and fluorine


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