IDEF9 Standard

The vector stencils libraries "Pipes 1" and "Pipes 2" contain 28 and 48 pipe, tubing and fitting symbols, respectively.
"A fitting is used in pipe plumbing systems to connect straight pipe or tubing sections, to adapt to different sizes or shapes, and for other purposes, such as regulating or measuring fluid flow. The term plumbing is generally used to describe conveyance of water, gas, or liquid waste in ordinary domestic or commercial environments, whereas piping is often used to describe high-performance (e.g. high pressure, high flow, high temperature, hazardous materials) conveyance of fluids in specialized applications. The term tubing is sometimes used for lighter-weight piping, especially types that are flexible enough to be supplied in coiled form.
Fittings (especially uncommon types) require money, time, materials, and tools to install, so they are a non-trivial part of piping and plumbing systems." [Piping and plumbing fitting. Wikipedia]
Use the design elements libraries "Pipes 1" and "Pipes 2" for drawing plumbing and piping building plans, schematic diagrams, blueprints, or technical drawings of waste water disposal systems, hot and cold water supply systems using the ConceptDraw PRO diagramming and vector drawing software.
The shapes libraries "Pipes 1" and "Pipes 2" are contained in the Plumbing and Piping Plans solution from the Building Plans area of ConceptDraw Solution Park.