1.The slot Johnson screen is composed of rod strips and V shaped wires through manufacturing
on specialized welding machine.

2.The rib strips and V shaped wires will be welded by resistance welding, has enough welding strength,
equally slot gap, high corrosion resistance, large filter area, good permeability, simple structure 

No.	(mm)TYPE	OD (mm)	ID (mm)	Support wire Number	Filter direction
1	SRD25.4	25.4	18.6	12	FOTI
2	SRD 33	33	24	8	FOTI
3	SRD 37	37	28	8	FOTI
4	SRD 40	40	31	8/10	FOTI/FITO
5	SRD 45	45	36	10/12	FOTI/FITO
6	SRD 48	48	38	12	FOTI/FITO
7	SRD 60	60	51	12	FOTI/FITO
8	SRD 70	70	61	12/18	FOTI/FITO
9	SRD 85	85	76	18	FOTI/FITO
10	SRD 110	110	101	24	FOTI/FITO
11	SRD120	120	111	24	FOTI/FITO

oil well , water well ,  geothermal well ,  sewage and industrial wastewater disposal plants,

food equipment, liquids filtration,cleaning treatment




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