Johnson screen is another type of wedge wire screen:
 
Johnson screen,   the type of filter is:   from inside to outside.
Wedge wire screen,   the type of filter is:   from outside to inside.
 
Material: Low Carbon Galvanized ( LCG ) and Stainless Steel (SS)
Slot size (mm): 0.05、0.1、0.25、0.50、0.75、1.00、1.50、2.00、3.00..also achieved upon customer request.
Filter: From inside to outside

Type:1. The wire is the length of the screen and the rod is the circle of the screen
     2.The wire is the circle of the screen and the rod is the length of the screen

Tag:SS Johnson Type screen /Water Well Casing Screen

SIZE (inch)	O.D (mm)	SLOT (inch)	LENGTH (m)	Collapse Strength (psi)	Tensile Weight (ton)	Wire siz (mm)	RODS (mm)
4	117	0.040	3	395	6	2.2*3.0	3.8mm/22
4	114.3	0.040	3	395	6	2.3*3.0	3.8mm/22
6	168.3	0.040	3	252	8	2.3*3.5	3.8mm/32
8	219.1	0.010	3	399	10.5	3.0*5.0	3.8mm/48
8	219.1	0.020	3	370	10.5	3.0*5.0	3.8mm/48
8	219.1	0.040	3	323	10.5	3.0*5.0	3.8mm/48
10	273.1	0.010	3	206	11	3.0*5.0	3.8mm/50
10	273.1	0.020	3	191	11	3.0*5.0	3.8mm/50
10	273.1	0.040	3	167	11	3.0*5.0	3.8mm/50

The production of Johnson screens ,which type of products design is reasonable, appearance, reliable quality, suitable for hydrology,

geology, engineering geology, chemical engineering geology, geothermal air conditioning, foundation precipitation,

water source development, farmland and the urban water supply various industries such as construction .




If  interested,pls contact:
Cynthia
Skype:aldfilters
Email:sales03@xxldlq.com
QQ:2537575135
Mob:86-15637366455(whatsapp,viber,wechat)
Web:http://www.chinawaterwellscreen.com/