Pure graphite and reinforced graphite gaskets
FF.GI srl has developed a range of graphite gaskets, perfect to be involved in peculiar situation of temperature (up to 450°C in oxidizing environment) and pressure (up to 100BAR according to the gasket design).
Some application examples: environment with saturated steam, gas or diathermies oil, and all the applications where the most performant PTFE gaskets or the most common aramid fibre/elastomer gaskets are not useful because are way over their application range.
Some application examples: environment with saturated steam, gas or diathermies oil, and all the applications where the most performant PTFE gaskets or the most common aramid fibre/elastomer gaskets are not useful because are way over their application range.
TYPES
- GRA-FLEX 5000Pure expanded graphite with purity rate above 99% and density of 1,0 km/dm3. Perfect behaviour on high temperatures and low permeability to gas and fluids in general. Good chemical resistance.
- GRA-FLEX 5200
Sandwich of expanded graphite purity > 98% reinforced with double sheets in non-corrosive aluminium Alloy 1200 with high mechanical characteristics, but at the same time flexibility and softness. This material could be used as internal part of the PTFE envelope gaskets.
- GRA-FLEX 5400
Sandwich of expanded graphite purity > 98% reinforced with a stainless-steel sheet AISI 316L (sp.0,05mm), smooth. Thanks to the laminated sheet is perfect for situation with high sealing range and handling.
Recommended for a wide range of applications such as saturated and heated steam, aggressive chemicals (no oxidants). The main applications are in petrochemical and thermoelectrical where resistance to the Creep is needed.
- GRA-FLEX 5300
Expanded graphite sandwich purity > 99% without fillers, reinforced with a tanged stainless-steel sheet AISI 316L (sp. 0,1mm). Compared to the GRA-FLEX 5400 is more efficient in situation with higher sealing rate and resistance to the extrusion process.
- GRA-FLEX 5300/I
Expanded graphite gasket with a tangled stainless steel AISI 316L core (0,10mm) and reinforced with an internal tanged stainless-steel sheet AISI 316L. This gasket grants excellent sealing in every situation. Saturated steam, diathermic oil, gas, in addition to that the internal ring avoid the contact between the material and the external parts of the gasket improving the performances and the pressure resistance.
- GRA-FLEX 5300/IE
Expanded graphite gasket with a tangled stainless steel AISI 316L core (0,10mm) and reinforced with internal and external tanged stainless-steel sheets AISI 316L. Compared to the GRA-FLEX 5300/I the external reinforcement ring make the gasket less fragile to handling and installation.