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.
