What is the function of an o ring and what does an o ring mean

Eco-friendly O-ring seals for food.

O-rings are O-rings, O-rings.

O-rings (O-rings) are a kind of rubber sealing rings with a circular cross-section, which are called O-shaped rubber sealing rings because of their O-shaped cross-sections, also known as O-rings. It began to appear in the middle of the 19th century, when it was used as a sealing element for steam engine cylinders.

Because they are cheap, simple to manufacture, reliable in function, and simple to install, O-rings are the most common mechanical design for sealing. O-rings are subjected to a pressure of tens of megapascals (thousand pounds). O-rings can be used in static applications or in dynamic applications where there is relative movement between components, such as the shaft of a rotary pump and the piston of a hydraulic cylinder.

O-rings are annular rubber rings with circular cross-sections, which are mainly used to prevent the leakage of liquid and gaseous media under static conditions for mechanical components, and in some cases, it can also be used as dynamic sealing elements for axial reciprocating motion and low-speed rotary motion.

According to different conditions, different materials can be selected to adapt to it. In the case of the same clearance, the volume of the O-ring being squeezed into the gap should be less than the maximum allowable value of the O-ring being squeezed in.

Material selection. The materials used as O-rings are nitrile rubber, carboxynitrile, fluorine rubber, ethylene propylene rubber, hydrogenated nitrile rubber, silicone rubber, neoprene rubber, fluorosilicone rubber, polyurethane, chlorohydrin rubber, styrene-butadiene rubber, butyl rubber, natural rubber, ethylene propionate rubber, polyacrylate rubber, perfluoroelastomer and so on. The same kind of rubber has a large change in performance indicators due to different formulas.

Therefore, it is inaccurate to simply fill in nitrile rubber or nitrile-40 in the material column.

The Ministry of Materials and Chemical Industry for O-rings has special standards, such as: HG T 2579-1994, HG T 2021-1991, HG T 2333-1992, HG T 3089-2001, HB 5290-1991, etc.

Refer to the above content: Encyclopedia-O-ring.

Encyclopedia - O-shaped rubber ring.

Different colors have different heat resistance.

Common colors are described as follows:

White: PTFE, powder metallurgy.

Red: Silicone rubber (SI VMQ), hydrogenated nitrile rubber, nitrile butadiene rubber.

Coffee: Fluoroelastomer (FKM).

Dark green: fluoroelastomer (FKM).

O-rings are called O-rings because of their O-ring cross-section. It first appeared in the mid-19th century, when it was used as a sealing element for the cylinders of steam engines.

This color has little to do with the material, and the color is basically artificially added.

For foreign products, it is generally black, and there are fewer colors added, and there are more colors produced in China and Taiwan.

Here's a description of the common colors:

White: Polytetrafluoroethylene (PTFE), Difluoroelastomer (FFPM) Red: Silicone Rubber (SI VMQ), Hydrogenated Nitrile Rubber (HNBR), Nitrile Rubber (NBR, this is rare, I only saw the United States once).

Brown color: fluoroelastomer (FKM).

Dark green: fluoroelastomer (FKM).

As for the blue one you said, I really haven't seen it, and it's probably a small domestic or Taiwanese brand, right? Or is it custom-made?

The function of O-rings: sealed in water, gas, gasoline, diesel, petroleum, lubricating oil, dustproof and other products that need to be sealed, and can protect the service life of the sealed product parts.

O-ring is a kind of rubber seal, which plays an important role in the sealing of the dense section, and is an indispensable rubber seal product in our life and industrial production. O-rings are widely used in oil seals, hydraulic valves, cylinders, hydraulic cylinders, plumbing and sanitary ware, hardware and appliances, medical equipment, machinery, electronics, semiconductors, pistons, etc.