The higher the velocity, the higher the potential for shock loading.

Velocity plays an important role when recommending a Strainer for a piping system. The higher the velocity, the higher the potential for shock loading (water hammer). Typically for metal piping systems the most desirable range is between 6 to 1 0 feet per second. For plastic piping systems the maximum recommended flow rate is 8 feet per second.

Most end users won’t know the flow velocity in their systems, but they will know the flow in gallons per minute. To convert gallons per minute to velocity Ft./Sec. take the GPM  0.4085 divided by the inside diameter of pipe squared.

(GPM x 0.4085) ÷ (ID² in Inches) 

Note: The above calculation is for water only.  

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About Eaton's Filtration Business
Eaton’s Filtration business is a global leader in manufacturing filtration products that include automatic self-cleaning and fabricated pipeline strainers, mechanically cleaned filters and strainers, bag and cartridge filtration systems, and gas liquid separators for industrial customers worldwide.

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