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Pipe Base Screens With Johnson Type Screen Jacket

Pipe Base Screens With Johnson Type Screen Jacket

Pipe based screen with Johnson Type Jacket combines stainless steel or carbon steel casing with continuous slot well screens for additional strength in deep well applications. The pipe body strength allows smaller wrap wires to be used, allowing for greater open area.
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Pipe Base Screens' Characteristics:

Pipe based screen with Johnson Type Jacket consists of two screens or multilayer screens

Perforated pipe inside ,with perforations wrapped by the outside Johnson type screen

The screen jacket and base pipe are welded together with a length of coupling.

The base pipe can be made of seamless pipe or welded pipe, and more often, casing pipes.

ID of Johnson type well screen equals OD of the perforated pipe.

pipe base screens

johnson screens

Technical specifications of base pipe screens:

Base pipe

                    Screen jacket

 Size of base pipe

Weight kg/m

Out diameter

Weight kg/m

filter fineness

2-7/8”

73mm

9.54

82mm

10.9

150-800µm

3-1/2”

88.9mm

13.7

98mm

15.5

150-800µm

4”

101.6mm

14.2

110mm

16.3

150-800µm

4 -1/2”

114.3mm

17.3

123mm

19.9

150-800µm

5”

127mm

22.4

136mm

25.8

150-800µm

5-1/2”

139.7mm

25.3

150mm

29.1

150-800µm

6-5/8”

168.3mm

35.8

178mm

41.2

150-800µm

7”

177.8mm

38.7

188mm

44.5

150-800µm

The length of base pipe(m)

The length of the filter 4m*1 part

The length of the   filter 5m*2 part

Pipe base screen's package:

Pipe based wedge wire screens are packaged with bubble and woven bags and then fixed with wooden strips.

 stainless pipe package



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