PISTON SEAL MA20

STANDARD SEAL DIMENSIONS

DESCRIPTION

The MA20 piston seal type is similar to the MA8 type, but it has an acetylic resin wear ring to mitigate possible misalignments and avoid extrusion. A RR retaining ring made of thermoplastic resin prevents seal extrusion during the cycle inversion.

TECHNICAL DATA

Pressure: < 400 bar at a temperature of 60° C Speed: < 0.5 m/s Temperature: from - 35° C to + 100° C with peaks till +110° C Fluids: mineral fluids and oils

MATERIAL

The proposed

MATERIAL

is polyurethane with high modulus of elasticity, low compression set and high abrasion resistance. The wear ring is made of a acetylic resin reinforced with fibreglass. The retaining seal is made of thermoplastic resin.

ASSEMBLING

Avoid all cutting edges and flash on the piston where the seal is housed. A lead-in chamfer in the groove will facilitate the piston insertion. Lubricate the seal before installation.