PICUTRES OF WEDGE WIRE SCREEN TUBE:

Factory supply stainless steel Johnson wedge wire screen cage type V-wire wound screens:

FEATURE OF JOHNSON STRAINER SCREEN PIPE:

V shaped stainless steel 304 wire wrap water well Johnson screens are manufactured using our unique computerized machinery, developed in-house, and in which a continuous length of profile wire of a triangular section is fusion welded onto support rods.
This 'V' shaped profile wire is wound around the support rods over the full length of the screen thus creating a continuous slot opening.
Wedge wire water well johnson screens offers many advantages including:
A continuous slot opening which significantly increases the available open area, thus providing greater access to the water bearing zone (the aquifer)
A "V" shaped profile wire which avoids clogging and ensures an uninterrupted flow.
A uniform and efficient well development due to the continuous slot opening.

168mm 219mm 8 5/8inch out diameter SS304L johnson strainer well screen tube with welded beveled/STC thread:

which has it's own characters:

Area open to flow=6% to 8% for 12 spf, 0.75" EH (assumes all perfs open),

4% open area in base pipe

Skin--1 to 5

Length: 0.1-6.0 meters

Wire Wrapped Water Well Strainer Screens are made by winding cold-rolled wire,approximately triangular in cross section, around a circular array of the longitudinal rods. The wire is attached to rods by welding, producing rigid one-piece units having high strength characteristics at minimum weights.

Why to choose the OASIS Vee shape slotted sand wedge wire screens:

the special wedge shape wire and rods to make of the well screen as the above drawing.

and the specifications of the wedge wire screens:

Advantages of the flat welded Johnson type screens/the water well screens/wedge wire screens are as follows:

1. Better filter function. 
2. Prolong life of well.
3. Long service life. 
4. High pressure-resistant.
5. Customized.

Low cost than full sand control routine completion.

How to find proper screen dimensions and correct slot sizes of the wedge wire screens

Diameter, Specific capacity and available drawdown indicate the productivity of a well to be expected. 
If the pump is installed above the screen the rising velocity at the screen head should not exceed v = 1.75 meter/sec. 
If the pump is installed below the screen in a pump sump then the screen diameter depends mainly on the pump size and the remaining annulus space between the screen and the riser pipe.

Screen length, once decided on the screen diameter the laminar flow conditions at the entrance of the screen determine the requested length. Screen length in the total height of a water bearing formation is - especially when using the con-slot screen - not necessary. The Kozeny concept of investigation for partial penetrated formation is an excellent practice to determine max. Necessary screen length.

Package and Delivery:

Each with bubble bags and then in wooden case.

Each case is clearly marked with:

1.Batch number

2.Date of manufacture

3.Safe heating & application temperature

Transported by sea, or according to your requirements.

INSPECTION:

1)Advanced technology, Strict inspection process:
Oasis Oil Tools co.,ltd has 20 years experience in Water Filter Mesh Screens/Water Well Sand Filters, we strive for technical innovations to improve quality of products.Our products not only have the features of trustworthy quality, safety and energy save but also beautiful appearance and low maintanemance.
2)Small profits but quick turnover:
Our Production will offer you a relatively and reasonable lower price, which means our customer can get more profite with a cheap price.
3)Premium and comprehensive sale system:
With a comprehensive sale system including before sales service, in-sale service and after sale service, we have won a good reputation at home and abroad. Also it is a important reason why so many customer to choose us.

MORE INFORMATION, PLEASE CONTACT WITH US: