O-ring

An o-ring is a mechanical gasket in the shape of a torus; it is a loop of elastomer with a round cross-section. O-rings are designed to be seated in a groove and compressed during assembly between two or more parts, creating a seal at the interface. The compression of the o-ring closes the gaps, blocking the passage of fluids or gases. They are commonly used in applications like hydraulic and pneumatic cylinders, plumbing fixtures, and aerospace systems. Materials range from synthetic rubber to fluorocarbon and silicones, selected for their properties regarding chemical resistance and temperature performance.

O-ring meaning with examples

• The mechanic replaced the worn o-ring in the hydraulic cylinder to prevent oil leaks, which meant the excavator could get back to work. Choosing the correct size and material of o-ring was crucial for a secure seal. The entire process was done with care and precision and ensured a tight fit.
• During routine maintenance, the plumber replaced the old o-ring in the faucet to stop a drip. The new o-ring, made of durable rubber, created a watertight seal. The customer no longer had to worry about rising water bills, this gave them peace of mind.
• In the aerospace industry, O-rings are vital for sealing fuel lines and control systems. Engineers carefully select high-performance materials, such as fluorocarbon, to withstand extreme temperatures and pressures. They are essential for the safe operation of the aircraft.
• When building the pressure cooker, I had to make sure the o-ring was seated correctly. The o-ring created a perfect seal, preventing steam from escaping. This kept the pressure constant for efficient cooking.
• The scuba diver checked the O-rings on their regulator before the dive to ensure the equipment was safe. A faulty o-ring could cause a dangerous leak. Careful inspection is essential for underwater safety.