Chesterton 5800E WedgeSeal Packing

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Chesterton 5800E WedgeSeal Packing
Low Emissions Sealing for Control Valves in High Temperature Environments


​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​Chesterton 5800E WedgeSeal™ packing is designed for high-temperature fugitive emissions service in friction-sensitive valves. 

Combining 5800 pure die-formed graphite sealing rings with our 477-1 inter-braided carbon yarn end rings, Chesterton 5800E seals to low VOC* emission​s levels (less than 500ppm), while providing minimal friction against the stem.​

  • The carbon/graphite base materials in the set are unaffected by high temperatures.
  • The set passes the API 589 Fire Test, ensuring maximum safety in hazardous services.
  • The WedgeSeal set has passive corrosion inhibitors that retard electrolytic pitting. 
  • The unique wedge shape of the sealing rings provides more efficient transfer of gland load to the packing and makes the set more responsive to gland adjustments.

The most important feature of this design is to reduce stem friction, which ensures that the valve actuator can respond to system changes more rapidly and precisely.

​See also: Chesterton 5800E Low Emissions Control Valve Sealing Kit​

Die-formed graphite wedge packing designed for emissions service ​for low packing friction applications
Retards electrolytic pitting
Makes the set more responsive to gland adjustments​
Pneumatically controlled valves in services where fugitive emissions must be minimized
Temperature LimitFrom –40°C (–40°F) up to 565°C (1050°F)
Maximum Pressure Limit250 bar g (3600 psig)
Chemical ResistancepH 0 to 13
ApplicationsLight and heavy hydrocarbon services, steam services, chronic leakers in fugitive emissions services—block or control valve Live loading is recommended for most applications
NoteAlso available 5800T for low temperature service –180˚C to 230˚C (–300˚F to 450˚F) and 315˚C (600˚F) in steam services.​​



Installation Instructions: 5800E for Valtek (English) Instructions: 5800E for Valtek (English)pdf
Installation Instructions: 5800E/5800 (English) Instructions: 5800E/5800 (English)pdf
Installation Instructions: 5800E for Masoneilan (English) Instructions: 5800E for Masoneilan (English)pdf
SDS: 5800E (English) 5800E (English)pdf
Installation Instructions: 5800/5800E/5800T (MULTI-LANGUAGE) Instructions: 5800/5800E/5800T (MULTI-LANGUAGE)pdf



Brochure: Valve Sealing Program (English) Valve Sealing Program (English)pdf
Brochure: Valve Cartridge Live Loading (English) Valve Cartridge Live Loading (English)pdf
Catalog: Chesterton Packing and Gasket Product Catalog (English) Chesterton Packing and Gasket Product Catalog (English)pdf
Catalog: Mechanical Packing and Gaskets (Espanol) Mechanical Packing and Gaskets (Espanol)pdf
Catalog: Chesterton Valve Packing (Nihongo) Chesterton Valve Packing (Nihongo)pdf