PRODUCT DATA

Style A99 Specialgraf Braided Packing

Style A99 Specialgraf Braided Packing

Style A99 Specialgraf is braided from special expanded graphite tape, with a corrosion inhibitor and high temperature mesh reinforcement.







Main areas of application:

• Valves
• Pumps
 

Technical Data

• pH Range: 0 To 14
• Maximum service temperature: -200 to +400°C
 (650°C in steam)
• Pressure (Bar): 500



Features

• Universal plantwide use in static applications
• Extrusion stability through ultrafi ne metal mesh reinforcement on each braiding strand
• Contains passive corrosion inhibitor
• Non-hardening, good reset capability, coefficient of thermal expansion similar to steel
• High temperature and high pressure resistance
• Easy to cut, assemble and disassemble
• Low coefficient of friction minimises valve spindle operating torque
• Rings should be compressed to a density of 1.8 during installation
• We recommend preformed rings are used where possible
• Suitable for power stations, petrochemical industry, boiler systems
• A99 has BAM approval for the use in oxygen at 60°C/25bar, certificate on request
A99 has API622 certification along with API 589 firesafe certification

Form of delivery

• This packing can be supplied from 4 to 30 mm square as well as in intermediate and imperial sizes
• 4 - 9 mm on 1 kg spool, special lengths, pre-cut or die formed rings on request
• 10 - 15 mm on 2.5 kg spool
• 16 mm and above on 5 kg spool

1kg of packing of the following cross-sections is equivalent to displayed metre lengths:

Documents to download

Product Gallery

Quality

Environment

Production Methods





Gee Graphite Website Gee Valve Seals Website Live Loading Website Waterjet Cutting

By Post

Gee Graphite Ltd.
Havelock Street
Ravensthorpe
Dewsbury
West Yorkshire
WF13 3LU

Contact

  • t. +44 (0) 1924 480011
  • f. +44 (0) 1924 480017
  • e. enquiries@geegraphite.com
  • w. www.geegraphite.com