Resistance and Equivalent Length of Fittings

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Equivalent length of common fittings like

• elbows - regular 90^o, long radius 90^o, regular 45^o
• tees - line flow and branch flow
• return bends - regular and long radius
• valves - globe, gate, angle and swing check
• strainers

in hot water piping systems are indicated in the tables below.

Screwed Fittings - equivalent length in feet

Equivalent length (in feet) of straight pipe for fittings like bends, returns, tees and valves. (Pipe size in inches)

Screwed Fittings - equivalent length in meter

Equivalent length (in meters) of straight pipe for fittings like bends, returns, tees and valves.

Flanged Fittings - equivalent length in feet

Equivalent length (in feet) of straight pipe for fittings like bends, returns, tees and valves.

Flanged Fittings - equivalent length in meter

Equivalent length (in meters) of straight pipe for fittings like bends, returns, tees and valves.

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Related Topics

• Fluid Flow and Pressure Drop - Pipe lines - fluid flow and pressure loss - water, sewer, steel pipes, pvc pipes, copper tubes and more
• Heating - Heating systems - capacity and design of boilers, pipelines, heat exchangers, expansion systems and more

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