Perforated Metal Styles

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Technical Terms:

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Slotted Filter Sheet

For slotted filter sheets manufacture and supply, a detailed drawing of the slot dimensions (width of the slots, tolerance, sheet thickness and other parameters) and patterns are necessary.

Material for slotted filter screen is mostly Stainless Steel 316.

Stainless steel perforated sheet with following size is popularly used as filter screen:
Width of slots :0.3mm (with a tolerance of 0~+0.1mm)
Perforated sheet thickness: 0.3 to 0.4mm.

Stainless Steel Perforated Filter Sheet enjoys the following benefits:

1, High filter precision is guaranteed by the precise punching slot technique and machining tolerance under 0.05 mm;

2, High quality stainless steel material offers excellent corrosion resistant ability;

3, The perforated metal sheet can be formed in different shapes of screen (for example, tube screen) to meet the requirements of different filtering condition.

316 Stainless Steel Slotted Sheet

Welded Tube Screen with Slotted Opening

Slotted Sheet Filter Screen Reference Parameters:

Size
In/mm

2-3/8

2-7/8

3-1/2

4

4-1/2

5

5-1/2

6-5/8

7

Slot Hole Size 
(in/mm)

0.39

(8.0)

0.39

(8.0)

0.39

(8.0)

0.47

(12.0)

0.47

(12.0)

0.47

(12.0)

0.47

(12.0)

0.47

(12.0)

0.47

(12.0)

Slot Hole Density
(holes/ft)

66

77

88

88

99

110

121

132

143

Slot Opening Area
In2/ft

8.29

9.67

11.05

11.05

12.43

13.8

15.2

16.58

17.96

Screen OD Max
(in/mm)

3.15

(80)

3.701

(94)

4.37

(111)

4.882

(124)

5.354

(136)

5.866

(149)

6.378

(162)

7.559

(192)

7.953

(202)

Applications:

Slotted filter sheets can be used for single layer or multi-layer well screen, cased hole and open hole completion, sand control screening for controlling of middle and coarse sand in reservoir, oil and gas well or thermal production well and corrosive well screens.

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