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ASTON KPD PISTON SEAL

    KPD PISTON SEAL
    – A dynamic seal that ensures a high level holding capacity. Two small and compact sealing lips ensure a perfect fit fluid control and concentrate the load against the dynamic surface. The cavity between the two sealing lips keeps a small amount of fluid that reduces friction e wear. Side spacers ensure that the fluid under pressure can always energize the O-Ring in all working conditions
    – A standard low deformation O-Ring permanent as an energizing element on the static part 
     
    Features
    • High sealing capacity even at low pressure
    • Excellent wear resistance
    • Small footprint
    • Long service life
    • Simple execution of the seat
    • Economic solution
    • High resistance to extrusion
    • Good temperature resistance
    • Easy to install on monobloc piston
    MATERIAL
    1TypeDesignationHardness
    PolyurethaneSEALPUR 9797°ShA
    2TypeDesignation
    Nitril Rubber NBRRUBSEAL 7070°shA
    FIELD OF APPLICATION
    PressureSpeedTemperature
    ≤ 400 bar≤ 0.5 m/s30°C÷ +110°C
    SURFACE ROUGHNESS
    Dynamic surfaceRa ≤ 0.3 umRt ≤ 2.5 um
    Static surfaceRa ≤ 1.6 umRt ≤ 6.3 um