What is an O-Ring? Instrumentation Tools

What is an O-Ring? Instrumentation Tools: What is an O-Ring? An O-ring is a torus, or doughnut-shaped ring, generally molded from an elastomer, although O-rings are also made from PTFE and other thermoplastic materials, as well as metals, both hollow and solid. O-rings are used primarily for sealing. An O-ring, also known as a packing, or a toric joint, is a ...