The warp is triangular wire (V-shaped wire). The welded ring sand control wedge wire screen pipe have a robust structure and large open area, as well as accurate slot dimension. At the same time,wedge wire screen pipe have many advantages such as heat-resisting, anti-corrosive, good machine capability,long service life, safety and reliability and so on. It can be used in many kinds of medium filtering.
Application for slotted screen cylinder:
The welded ring sand control wedge wire screen pipes are mainly used for the water-treatment , water well drilling ,oil well drilling ,mineral processing, coal-cleaning plant ,sewage treatment and other industries,water,oil or gas filter and other filtration equipment.
Features for slotted screen cylinder:
1.Filter pipe with high porosity is more efficient for the construction of water, oil and gas wells.
2.Filter pipe with low operating costs and high porosity is more conducive to groundwater infiltration, and plenty of deep water make the water level drop reduced, thereby reducing energy consumption.
3.Reducing pump wear, under the same conditions, the high porosity makes groundwater infiltration rate in the filter pipe penetration rate more slowly compared to other filtration apparatus, thus avoiding the sand enter the filter pipe in the larger pressure,reducing pump wear.
4.to extend the life of the well, relatively speaking, a high groundwater infiltration drainage pipe filter pores easier, low flow rate, extending the life of the well.
Advantage for slotted screen cylinder：
1. Non-clogging construction: The V-shape section plane of wedge wire screens (Johnson type screens) creates the continuous slot, which can avoid blockage and make sure of the unimpeded water.
2. Large Filtering Area: The consecutive slot of wedge wire screens (Johnson type screens) have wider open area,
and it can reduce the speed of the water entering to avoid the sand entering the screen under the great pressure, so it can control sand better,
which can increase the water yield and prolong service time of the well.
3.Long service life Wire and support rods are all-welded, which makes wedge wire screens (Johnson types screens) more robust and longer life.
4.Excellent construction strength: The longitudinal support rods and the continuous slot make the wedge wire screens(Johnson type screens) have more excellent pressure-resistant performance.
5.Specifications and end connections of wedge wire screens(Johnson screens) can me fabricated according to customers’ requirements