N 63 X 78 X 12 TDI

TDI U-Cup

TDI (Rod Seals)

The TDI tandem seal for inside sealing is a piston rod seal. It can be used with mineral oils and in modified form with water base fluids, fire resistant fluids, and compressed air. The TDI seal consists of 2 parts, an external elastic ring of PUR with a sealing lip and an internal slide ring of abrasion resistant PTFE-Bronze compound with a sealing edge. Prior to fitting, the sealing lip protrudes beyond the nominal diameter of the seal and when fitted is pressed against the piston rod. Effective sealing is thereby provided at zero pressure. The slide ring is surrounded by the elastic ring and seals axially in direct contact with the piston rod. Under increasing pressure and compression of the sealing ring, it is the slide ring which is predominantly pressed against the piston rod. The slide ring produces an annular cavity where any seepage oil that has passed the elastomer lip is collected.

Application:

• Working Pressure: = 450 bar

• Working Temperature: -35°C to 100°C (-31°F to 212°F)

• Surface Speed: = 1 m/s