Editing Compression fitting (section)

{{Short description|Plumbing fitting}}
{{More citations needed|date=April 2013}}

[[Image:Compression fitting isolating valve 15mm screwdriver turn.jpg|thumb|A compression fitting 15 mm [[Isolation valve|isolating valve]]]]
A '''compression fitting''' is a [[Piping and plumbing fitting|fitting]] used in [[plumbing]] and electrical conduit systems to join two [[tubing (material)|tubes]] or thin-walled [[pipe (material)|pipes]] together.  In instances where two pipes made of dissimilar materials are to be joined (most commonly [[polyvinyl chloride|PVC]] and [[copper]]), the fittings will be made of one or more compatible materials appropriate for the connection. Compression fittings for attaching tubing (piping) commonly have [[ferrule|compression rings]], called ''ferrules'' ([[American English]]) or ''olives'' ([[British English]]), in them, and are sometimes referred to as flareless fittings. There are also [[flare fitting]]s that do not require ferrules/olives.

Compression fittings are used extensively in hydraulic, gas, and water systems to enable the connection of tubing to threaded components like valves and tools.<ref>{{cite web |title=The Basics of Compression Fittings |url=https://www.beswick.com/resources/the-basics-of-compression-fittings/ |website=Beswick Engineering |access-date=18 April 2022 |ref=Basics}}</ref> Compression fittings are suited to a variety of applications, such as plumbing systems in confined spaces where copper pipe would be difficult to solder without creating a fire hazard, and extensively in hydraulic industrial applications. A major benefit is that the fittings allow easy disconnection and reconnection. There are now open source [[3D printing|3-D printable]] easy fittings that can be customized to connect pipes of any size up to 4.5MPa.<ref>{{Cite web |last=Tyrer-Jones |first=Alex |date=2025-02-24 |title=Open-source 3D Printed Pipe Fittings Reduce Water Waste, New Study Argues |url=https://3dprintingindustry.com/news/open-source-3d-printed-pipe-fittings-reduce-water-waste-new-study-argues-236685/ |access-date=2025-03-10 |website=3D Printing Industry |language=en-US}}</ref><ref>{{Cite journal |last1=Fini |first1=Abolfazl Taherzadeh |last2=Brooks |first2=Cameron K. |last3=Romani |first3=Alessia |last4=Straatman |first4=Anthony G. |last5=Pearce |first5=Joshua M. |date=February 2025 |title=Parametric Design of Easy-Connect Pipe Fitting Components Using Open-Source CAD and Fabrication Using 3D Printing |journal=Journal of Manufacturing and Materials Processing |language=en |volume=9 |issue=2 |pages=65 |doi=10.3390/jmmp9020065 |doi-access=free |issn=2504-4494}}</ref>