Expanded Graphite Packing

Vulcan Grafan material is essentially pure carbon in Graphite form processed into flexible foil material without any fillers, binders or other additives. The product is self-lubricating, dimensionally stable, impervious to gases and fluids, and shows exceptional temperature and chemical
resistance. Grafan offers unrivalled sealing capabilities under extreme temperature, media and pressure conditions giving extended packing life. Graphite in this form is self-lubricating with a low coefficient of friction (comparable to Teflon), high thermal conductivity and permanent volumetric
elasticity (spring back) which results in no volume reduction (compression set) in use. Resilient with ideal fluid and gas sealing characteristics and extreme capabilities, Grafan offers the ultimate range and performance in a packing material.
Vulcan Type VR1 is a crimped Grafan ribbon Tape, available from 6mm to 75mm wide, for in-situ packing of valve stems and then it is easily compressed into a uniform packing ring. Using this system, a small tape inventory can pack any size of gland with superior service results.
Type VR1 standard spool length is 8 metres. Custom lengths can be available - please contact us using the form.
Applications: An extreme condition, long life and zero leakage packing for all uses, up to high temperature, high-pressure, high-speed applications on pumps, valves, mixers, agitators, expansion joints, ball valve seats and other static seals. Types VR1 is designed for use in static applications only. Against all acids, alkalis and solvents (except very strong oxidants), gases, feed water and superheated, or saturated steam.
Features
Exceptional temperature and chemical resistance
Designed for use in static applications
Self lubricating, dimensionally stable and impervious to gases and fluids
Operating Limits
Pressure Rating: 200 Bar
Rotary Speed: 1 ms
Temperature: -200°C to +3000°C Inert
Temperature: -200°C to +3000°C In Air
pH Range: 0 - 14