GF7700 GORE® GFO®

The GF7700 packing has the words 100% GORE® GFO® on it to guarantee its authenticity.
The special technique used to encapsulate the graphite inside the ePTFE matrix is still something that differentiates it from other types of graphite-filled PTFE.
The perfect and homogeneous graphite distribution increases its heat distribution capacity when the seal is in service.
Together with the high toughness of ePTFE, this characteristic allows GF7700 GORE® GFO® to maintain excellent levels of performance.

Temperature 
-200°C / +280°C

Pressure range
Piston pumps, up to 200 bar Centrifugal pumps, up to 50 bar 

pH Range
0 to 14 

Speed
Piston pumps, 2 m/s Centrifugal pumps, 25 m/s

The GF7700 100% GORE® GFO® PTFE braid for pumps gives maintenance technicians a seal for general use that is suitable for a wide range or applications and uses.
Unlike other graphite-filled PTFE packings, only those made 100% with genuine GFO® fibre made by GORE®, with its 30-year success story, can offer unequalled reliability and performance. Thanks to its service life, GF7700 is clearly top quality. GF7700 can be used to seal gland followers in high-speed pumps, mixers, agitators and generally in all rotating and reciprocating systems.

GF7700 100% GORE® GFO® does not harden nor embrittle, minimising the friction with pump shafts. Due to its excellent lubricating properties and high thermal conductivity, it can keep down the temperature of the parts in contact with the shaft, ensuring a long service life even at the highest speeds.
Easy to install and remove, GF7700 100% GORE® GFO® can be used in a wide range of temperatures and with any industrial fluids except for strong oxidants.