NTH-Rings

Our NTH-Rings have proven to be a reliable and effective sealing solution, especially in the hydraulic and pneumatic sector. They are dynamic seals which can handle a wide variety of media ocurring in the machine, pharmaceutical or food industries. NTH rings are used for pistons, rods, plungers and slowly rotating shafts.

The double-acting NTH-Ring consists of the clever combination of a PTFE ring with a rectangular cross-section and a synthetic rubber O-ring. The wear-resistant PTFE ring performs the dynamic sealing while the elastic O-ring serves as a static seal and gives the PTFE ring a uniform pretension.

NTH-Rings fit in grooves with rectangular cross-section.

Operating temperatures

Materialguide

Advantages:
  • Best suited for pneumatics and hydraulics.
  • Best mechanical properties.
Disadvantages:
  • Average chemical and thermal properties.
Advantages:
  • Suited for pneumatic and hydraulic applications with higher temperatures.
Disadvantages:
  • Average mechanical properties.
Advantages:
  • Suitable for use in the food and pharmaceutical industries as FDA and EC1935/2004 standards are possible.
Disadvantages
  • Not resistant to synthetic oils.
Advantages:
  • Suitable for use in the food and pharmaceutical industries as FDA and EC1935/2004 standards are possible.
Disadvantages:
  • Average mechanical properties.
Advantages:
  • High chemical and thermal resistance.
Disadvantages:
  • Poor low-temperature flexibility.
Advantages:
  • High mechanical resistance.
  • Ideally suited for food and pharmaceutical industries.
Disadvantages:
  • Elaborate manufacturing process.
Advantages:
  • Suited for abrasive and harsh environments.
Disadvantages:
  • Low thermal resistance.
  • Water absorption.

Brochure

The brochure for this product can be downloaded here.

Download Area

Here you can find more information about our products and materials.

  • Certificate
  • Test instruction
  • Technical data sheets

Durability

This document gives you information about the storage time after receipt of the articles from NT K + D AG. It is also used for orientation and to avoid failures after installation.