Rod seal Prädifa series Z9 | Product Series

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Inside Diameter (mm)

Outside Diameter (mm)

Element Height (mm)

Groove Width

Minimum Working Temperature (C)

Maximum Working Temperature (C)

Seal Material

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Rod seal Prädifa series Z9 Rod seal Prädifa series Z9

Rod seal Prädifa series Z9

Rod seal for pneumatic cylinders, single-acting. U-cup design. Short axial length.

Technical Specifications

  • Thermal Application Type: Expanded Low and High Temperature (< -35 to 140°C), Standard Moderate Temperature (-35 to 100°C), High Temperature (< 205°C)
  • Media: Pneumatic
  • Polymer Material Options: Hydrogenated Nitrile Butadiene Rubber (HNBR, HSN), Nitrile Butadiene Rubber (NBR, XNBR), Fluorocarbon Rubber (FKM, FPM)
  • Maximum Operating Pressure: 16 bar
  • Minimum Operating Temperature: -25 to -20 °C
  • Maximum Operating Temperature: 80 to 200 °C
  • Maximum Surface Speed: 1 m/sec
  • Unit of Measure: Length: mm
  • Cushioning Mechanism: No
  • Pressure Rating: Pneumatic Pressure (< 16 bar)
Safety Warning

Full Product Description

The Z9 rod seal is a single-acting U-ring with interference fit on the outer diameter for sealing piston rods in pneumatic cylinders and valves. It is characterized by small axial installation dimensions. The standard range of the Z9 product series conforms to the cylinder diameters according to ISO 3320 or CETOP RP 52 P, RP 43 P and RP 53 P.

• Due to application-optimized geometry and compounds suitable for use in lubricated as well as in oil-free air (after initial lubrication on assembly).
• Good wear resistance.
• Low static and dynamic friction thanks to miniaturized design.
• Smooth running due to optimum lubricant-retaining sealing lip geometry.
• High temperature resistance in case of suitable compound selection.
• Excellent media resistance in case of suitable compound selection.
• Installation in closed and undercut housings.

Range of application:
For use in pneumatic cylinders.

Related Documents

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Products Inside Diameter (mm) Outside Diameter (mm) Element Height (mm) Groove Width Minimum Working Temperature (C) Maximum Working Temperature (C) Seal Material
Z90204N3510 2 4.4 2.2 2.6 -20 150 N3510
Z90303N3580 3 6 2.2 2.6 -25 100 N3580
Z90303V3681 3 6 2.2 2.6 -20 200 V3681
Z90304N3580 3 6.5 2.2 2.6 -25 100 N3580
Z90304N3854 3 6.5 2.2 2.6 -20 80 N3854
Z91004N3580 10 16 2.55 3 -25 100 N3580
Z91004V3664 10 16 2.55 3 -20 200 V3664
Z91204N3580 12 18 2.55 3 -25 100 N3580
Z91204V3664 12 18 2.55 3 -20 200 V3664
Z91605N3580 16 22 2.55 3 -25 100 N3580
Z91605V3681 16 22 2.55 3 -20 200 V3681
Z91724N3580 17 24 2.55 3 -25 100 N3580

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