Categories Starting with 'N'

An O-ring seal manufactured from the synthetic rubber polychloroprene, or neoprene, is known as a neoprene O ring. With a good resilience and high resistance to abrasion and tearing, neoprene O rings have found uses in a broad range of industries, such as medical, pharmaceutical, and automobile. These O-rings have good resistance to sunlight and ozone, as well as fair resistance to oils. In addition, its broad operating temperature range of -65°F to +250/300°F along with resistance to refrigerants, such as Freon, has made it ideal for use in a number of refrigeration sealing applications.

A needle valve is a multi-turn valve with a needle shaped closing element. It is similar to a globe valve and available in smaller sizes, they are often used on secondary systems for on-off applications and sampling.

A nitrile O ring is an O-ring seal manufactured from the synthetic elastomer nitrile, which is also known as Buna-N. Nitrile is a synthetic rubber copolymer with high resistance to hydrocarbon fuels and petroleum-based oils. This property, combined with its operating temperature range from -65°F to +275°F, has made it one of the most commonly used elastomers in the production of O-rings. Nitrile rubber is also superior to most other elastomers due to its good resistance to compression set, as well as tearing and abrasion. Despite its limitations for use in certain applications due to incompatibility with aromatic hydrocarbons, ketones, ozone, and sunlight, nitrile O-rings are used in a wide range of industries, including automobile and petroleum.

Neoprene gaskets are flexible and highly durable seals used for sealing joints that are prone to movements. These gaskets exhibit more heat resistance than rubber gaskets and do not succumb by softening as the latter on severe exposure. Furthermore, they are more resistant to ozone, sunlight and oxidation than natural rubber. Neoprene rubber gaskets are common in weatherproofing, gas-tight sealing applications, as well as in applications where closed cell, durable and flexible gaskets are required, or where movement is expected.