Piston sealing set Prädifa series NG | Product Series

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Inside Diameter (mm)

Element Height (mm)

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Minimum Working Temperature (C)

Maximum Working Temperature (C)

Seal Material

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Piston sealing set Prädifa series NG Piston sealing set Prädifa series NG

Piston sealing set Prädifa series NG

Where to Buy

Piston sealing set for hydraulic cylinders, single-acting.

Technical Specifications

  • Thermal Application Type: High Temperature (< 205°C), Standard Moderate Temperature (-35 to 100°C)
  • Media: Hydraulic
  • Polymer Material Options: Fluorocarbon Rubber (FKM, FPM), Nitrile Butadiene Rubber (NBR, XNBR)
  • Maximum Operating Pressure: 250 bar
  • Minimum Operating Temperature: -40 to -20 °C
  • Maximum Operating Temperature: 100 to 200 °C
  • Maximum Surface Speed: 0.5 m/sec
  • Unit of Measure: Length: mm
  • Cushioning Mechanism: No
  • Pressure Rating: Medium Pressure (< 250 bar)
Safety Warning

Full Product Description

The two-piece sealing set consists of a rubber/fabric U-ring and a back-up ring. It is extremely wear-resistant and delivers reliable performance even in the most adverse conditions (water or particle contamination).

• Simple installation in axially open grooves.
• Cylinder diameter dimensions according to ISO 3320. Non-standard sizes
are found on the following pages.
• Suitable for commercially available mineral oils; other compounds are also available for synthetic
media, emulsions and brake fluids.
• With a rubber header use as a rod seal is also possible.

Range of application:
Sealing of pistons in hydraulic cylinders. For double-sided pressure loading the seal profile must be used in a back-to-back arrangement.

Related Documents

Literature and Reference Materials
Installation Guidelines for Piston Seals--PTD3350
Storage and Cleaning of Elastomer Seals--PTD3032
Product Demos & Tutorials
How to Properly Store and Clean Elastomer Seals
Mixing the right ingredients: Material Development at Parker-Prädifa
Parker Final Exam in Physics / Sealing Systems Put to the Test
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Products Outside Diameter (mm) Inside Diameter (mm) Element Height (mm) Groove Width Minimum Working Temperature (C) Maximum Working Temperature (C) Seal Material
NG011000360 110 90 12.5 12.5 -40 100 Q5018
NG079000360 120 100 18 18 -40 100 Q5018
NG059500360 130 110 13 13 -40 100 Q5018
NG078600360 132 112 12.5 12.5 -40 100 Q5018
NG017000360 170 140 19 19 -40 100 Q5018
NG050100360 24 12 7.5 7.5 -40 100 Q5018
NG050200360 25 15 7.5 7.5 -40 100 Q5018
NG003200360 32 20 7.5 7.5 -40 100 Q5018
NG004000360 40 25 9.5 9.5 -40 100 Q5018
NG052000360 40 30 7.5 7.5 -40 100 Q5018
NG004500360 45 30 9.5 9.5 -40 100 Q5018
NG005000360 50 35 9.5 9.5 -40 100 Q5018
NG053500360 50 42 7.5 7.5 -40 100 Q5018
NG068300360 50 30 12 12 -40 100 Q5018
NG052800360 55 35 12.5 12.5 -40 100 Q5018
NG053900360 60 46 10.1 10.100 -40 100 Q5018
NG006300360 63 48 9.5 9.5 -40 100 Q5018
NG071300360 63 43 12 12 -40 100 Q5018
NG006200360 65 45 12.5 12.5 -40 100 Q5018
NG054400360 70 55 10 10 -40 100 Q5018
NG007500360 75 55 12.5 12.5 -40 100 Q5018
NG008000360 80 60 12.5 12.5 -40 100 Q5018
NG055000360 80 60 11.5 11.5 -40 100 Q5018
NG056600360 90 75 9.5 9.5 -40 100 Q5018
NG010000360 100 80 12.5 12.5 -40 100 Q5018
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