Flow Velocity
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Liners
Liquid or gas applications conveying media at high velocity should incorporate an interlock liner in the hose assembly design. The liner will decrease the turbulence caused by the high velocity and reduce the resonant vibration that may occur. A liner is recommended if the velocity is greater than the following:
Given:
3" nominal hose size
500 gallons per minute flow
Media is water
Hose is installed in 90° bend
Computation:
From the formula above,
(gpm ÷ ID2) x 0.4083 or
(500 ÷ 32) x 0.4083 = 22.68 ft./sec. flow velocity
Result:
Since the calculated flow velocity of 22.68 ft./sec. is less than 37 ft./sec., a liner is not required for this application.
Example:
Flexible Solutions For Today's Rigid Industries