Product Overview Typically used in reciprocating and high pressure static applications, T-Seals comprise a single T-section elastomeric energiser and two thermoplastic back-up rings. Available in both piston and rod geometries, T-Seals can retro-fit into most standard O-ring grooves designed for widths to accommodate 0, 1 or 2 back-ups. The shape prevents spiral failure whilst reciprocating. The elastomer component transmits the system pressure under the low pressure back-up ring, forcing it into position, closing the extrusion gap. As an elastomeric contact seal, the T-Seal provides highly efficient sealing and can be used in applications where two fluid types need to be separated e.g. gas, oil separation by an accumulator piston seal. |
Elastomeric Energiser Materials
Elastomer | Colour | Hardness (IRHD) | Temperature Range | Select for.. | Compound Reference |
---|---|---|---|---|---|
Nitrile Rubber (NBR) |
Black | 70 | -30 to +120oC | General Purpose | 36624 |
Fluorocarbon (FKM, A-Type) | Black | 75 | -20 to +200oC |
High temperature performance, high speed applications |
51414 |
Green | 75 | 51414G |
Back-Up Material Reference Codes
Material Composition | Colour | Coefficient of Friction | Temperature Range | Select for.. | PTFE Reference |
---|---|---|---|---|---|
Virgin PTFE | White | 0.05/0.08 |
-240 to +200oC |
Static or low duty cycles | E400 |
Glass and MoS2 reinforced PTFE |
Grey/Black | 0.06/0.10 | -160 to +290oC |
Dynamic or static, medium duty cycles, hardened metal running surfaces |
E431 |
Graphite reinforced PTFE |
Black | 0.06/0.10 | -200 to +250oC | Dynamic, medium duty cycles | E471 |
Carbon and graphite reinforced PTFE |
Black | 0.08/0.12 | -200 to +250oC | Dynamic, medium duty cycles | E462 |
Polyester reinforced PTFE | Beige | 0.08/0.12 | -130 to +290oC |
Dynamic or static, medium to high duty cycles, minimum 45 HRc running surface |
E491 |
Carbon, graphite and PPS reinforced PTFE |
Grey/Black | 0.08/0.12 | -130 to +290oC | Dynamic or static, high duty cycles, hardened metal running surfaces | E282Z |