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|
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Open Area Screen (%)
|
Slot width
|
X 100
|
|
Slot width + Wire Width
|
|
|
|
|
|
Open Area Slotted Liner (%)
|
Slots/ft x Slot width x Slot length
|
X 100
|
|
Outside diameter x ∏ x 12
|
|
|
|
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The collapse resistance of single screen with a normal radial construction:
|
|
Collapse Δ P (bar)
|
(He / OD)3 x 220 x 19600 x (1 – OA /100)
|
X 100
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|
He = Equivalent height wire -- OD = Outside Diameter -- OA = Open Area
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|
|
|
The tensile strength of normal single screen:
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|
Tensile (tons)
|
A-rod x N-rod x Rm
|
X 100
|
|
1000
|
|
A-rod = Square cut surface of rod -- N-rod = Number of Rods – Rm = Tensile material (kg/mm2)
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