PISTON SEAL DT9

STANDARD SEAL DIMENSIONS

DESCRIPTION

The DT9 seal type shows a double profile on the dynamic side and a surface with two small steps on the static side, where the o-ring is housed. The presence of the o-ring, which energizes the seal, ensures a perfect seal performance at low and high pressure. The special double profile avoids any Hydro-dynamic pressure on the sealing part and the consequent blow-by effect.

TECHNICAL DATA

Pressure: < 250 bar with standard material 93 Sh A at 60° C (C0) Pressure: < 400 bar with alternative material 98 Sh A at 60° C (D0) Pressure: < 500 bar with alternative material 55 Sh D at 60° C (E0) Speed: < 0.5 m/s Temperature: from - 35° C to + 100° C, with peaks at 110° C Fluids: mineral-based fluids

MATERIAL

The chosen material is polyurethane, with hardness according to the working pressure. The o-ring is in NBR hardness is of 70 Shore A.

ASSEMBLING

Remove any cutting edges and flash in the housing of the seal. Ensure a lead-in chamfer in the bore to facilitate the piston installation.