^{V-WIRE STRAINER :}

^{*     Higher Discharge
*     Better Sand Control
*     Reduce Pumping Head
*     Energy Saver
*     Non Clogging Slots
*     Non  Corrosive
*     Long Life}

	Johnson
V-WIRE STRAINER

What is V-WIRE Screens ?

V-Wire Water Well Screen ::

Johnson Well screens are manufactured with V-shaped profile wire which is spirally wound 
around a cage of longitudinal support rods. 
Each intersecting point of these wire is 
fusion welded. The pitch of winding gives different spacing between two adjacent turns of wire. 
This spacing gives passage for water to enter. 
The entire process is completed on fully 
computerized machines.

Most of the wells can be completed with one of several standard screen designs. A typical domestic well for example frequently uses 4" or 5" diameter screen. Municipal or production wells, however may require custom screens. We at Johnson are the world's most experienced designers of these high capacity, high efficiency screens.

To cover full range of well requirement we can produce screens from 1-1/2" to 32" diameter in any single section length upto 6 meter with end connections of any desired type.

We can use additional support rods to increase column and tensile strength. Larger profile wrap wire increases collapse resistance. where strength is not an issue and where even more open area is needed, we can use special narrow wire to produce extremely high open areas.

Economical factors also count. Though screens are most often made of stainless steel because of its excellent strength and corrosion resistance, less demanding conditions may allow lower cost material such as Low Carbon Galvanized steel   (LCG).

THE SALIENT FEATURES :

	Continuous Slots : The special design gives continuous slot opening  across the   periphery and length  of screen.
Non Clogging Slots : V-Shape wire which gives inwardly widening V-Shape slots.   This shape does not give space for any sand particle to get stuck  inside the slot  and hence these screens are NON CLOGGING.  Hence, the efficiency of tube well  is not reduced over no. of years due to clogging.

 Very Large % Open Area : This design gives continuous slot and hence the % 
open area for water to enter is more  than 2 times that of conventional slotted 
pipes of any size and slot opening. This allows more water to enter at much lesser 
frictional head loss and the efficiency  of tube well is improved appreciably.
Better Sand Filtration : Due to specialized manufacturing process, wide range of 
slot opening is available down to 0.15 mm to allow proper slot selection depending 
upon the size of sand in particular area.  This gives better sand control and 
reduced pump maintenance and longer tube well life.
Energy Saving : Due to reduced  frictional head losses and increased discharge, 
the pump load reduces  the power required to pump same quantity of water. 
Power saving of around 20-25% is observed.

^{TECHNICAL SPECIFICATION :-}

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