Piston seal Prädifa series Z7 | Product Series

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Diámetro exterior (mm)

Diámetro interior (mm)

Altura del elemento (mm)

Ancho de la ranura

Temperatura mínima de servicio (C)

Temperatura máxima de servicio (C)

Material de la junta

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Piston seal Prädifa series Z7 Piston seal Prädifa series Z7

Piston seal Prädifa series Z7

Piston seal for pneumatic cylinders, single-acting. U-cup design with integrated guiding function. High-temperature version available.

Especificaciones técnicas

  • Tipo de aplicación térmica: High Temperature (< 205°C), Expanded Low and High Temperature (< -35 to 140°C), Standard Moderate Temperature (-35 to 100°C)
  • Medio: Pneumatic
  • Opciones de material de polímero: Nitrile Butadiene Rubber (NBR, XNBR), Fluorocarbon Rubber (FKM, FPM), Hydrogenated Nitrile Butadiene Rubber (HNBR, HSN)
  • Presión de trabajo máxima: 16 bar
  • Temperatura mínima de funcionamiento: -30 to -20 °C
  • Temperatura máxima de funcionamiento: 100 to 200 °C
  • Velocidad de corte máxima: 1 m/sec
  • Unidad de medida: Length: mm
  • Mecanismo de amortiguación: No
  • Rango de presión: Pneumatic Pressure (< 16 bar)

Descripción completa del producto

The Z7 pneumatic piston seal is an U-ring with an integral guiding surface for single-acting pistons, ensuring high sealing performance due to the seal lip design.

• Due to application-optimized geometry and compounds suitable for use in oiled as well as in oil-free air (after initial lubrication on assembly).
• Multi-functional sealing element. The guiding area at the sealing element performs the guiding function in the cylinder. However, due to its geometry the sealing element is not suitable for absorption of high radial forces or long strokes.
• Prevents metallic contact between the piston and cylinder. Ideal for light-metal and plastic cylinders (ridging).
• Good wear resistance.
• Smooth running due to optimum lubricant-retaining sealing lip geometry.
• Easier installation.
• Assembly on one-part piston is possible.
• High temperature resistance in case of suitable compound selection.
• Excellent media resistance in case of suitable compound selection.
• Installation in open housings with retaining collar.

Range of application:
For use in pneumatic cylinders.

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Z7A089V3681 100 90 12 13.5 -20 200 V3681
Z71610N3510 16 10 8 9.5 -20 150 N3510
Z71812N3578 18 12 8 9.5 -30 100 N3578
Z72014N3578 20 14 8 9.5 -30 100 N3578
Z72518N3578 25 18 9 9.5 -30 100 N3578
Z72822N3578 28 22 8 9.5 -30 100 N3578
Z72822V3681 28 22 8 9.5 -20 200 V3681
Z73023N3578 30 23 9 10 -30 100 N3578
Z73225N3510 32 25 9 10 -20 150 N3510
Z73225N3578 32 25 9 10 -30 100 N3578
Z73225V3681 32 25 9 10 -20 200 V3681
Z73528N3578 35 28 9 10 -30 100 N3578
Z74033N3510 40 33 9 10 -20 150 N3510
Z74033N3578 40 33 9 10 -30 100 N3578
Z74538N3578 45 38 9 10 -30 100 N3578
Z75043N3578 50 43 9 10 -30 100 N3578
Z76353N3578 63 53 13 14.5 -30 100 N3578
Z76356N3578 63 56 9 10 -30 100 N3578
Z76356V3681 63 56 9 10 -20 200 V3681
Z77007N3578 70 62 10 11 -30 100 N3578
Z77007V3681 70 62 10 11 -20 200 V3681
Z78067N3578 80 72 10 11 -30 100 N3578
Z78070N3578 80 70 14 15.500 -30 100 N3578

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