Standard wedge wire wrapped screen pipe (external circumferential
wire and axial internal support rods) with smooth external screen
is a kind of strainers that flow from outside to inside filtration.
The Johnson wedge wire screen tubes are manufactured by a v or
wedge shaped wire around an internal array of longitudinal support
rods. Each intersection point of these wires is fusion welded. The
v or wedge shaped profile wire wraps around the support rods over
the full length of the screen creating a continuous slot opening,
hence the screen allows water (oil) to enter your well freely in
ample quantities, while at the same time keeps the majority of sand
and gravel out of the well. And the Johnson screens wedge wire
screen tubes are popularly used in making of water well screen.
Edge type of wedge wire filter pipe:
1) Standard type: There is no edge on the wedge wire filter pipe.
End ring type. The end rings are welded onto the wedge wire screen
2)Flange type. The flange is welded onto the wedge wire screen
cylinder and there are two types of flange for your choice.
1. Screens with the high open area are more suitable for the
construction of high-quality water wells, oil wells, and gas wells.
2. Low-cost operation Screens with high open area shall favor
groundwater infiltration. Abundant water shall reduce the water
level’s down, thus to save energy consumption
3. Reduce the abrasion of the pump Under the same condition, high
open area can make the speed of groundwater’s entering into the
screen much slower than any other filtration apparatus, which will
avoid sand entering into the screen because of high pressure, thus
reduce the abrasion of the pump.
4. Extend the life span of wells Comparatively, groundwater’s
entering into a screen with a higher open area is much easier than
entering into a lower open area screen. The slow water flow shall
extend the life span of wells.
|Material||SS304, SS304L, SS316, SS316L, SS321, Duplex, Hastelloy, etc|
|Length Range||Up to 6000 mm|
|Slot Range||20 micron to 3000 microns (Tolerance:+-5 micron)|
|End Finishing||Thread fitting, Flange, Closed Plated, Resistance welded closed
plate, Metal Ring, etc|
|Note||Customized is available.|
1. The application of wedge wire on the filter element forms a
V-shaped opening between the gaps of the screen tube. Due to the
inherent advantages of the design, it can operate more efficiently
than other types of filtration products, not only ensuring the
smoothness of water resource filtration, but also the flow rate of
the wedge wire filter pipe is three times that of the bridge filter
pipe in terms of working efficiency. 9 times the slit water filter!
2. Structural advantages of wire winding. The arrangement of the
longitudinal support rods according to actual needs and the form of
the continuous gap of the screen tube make the product more
High compression resistance. The T-shaped wire and all longitudinal
support rods are combined by electric welding, which is sturdy and
durable, with a longer working life cycle and low comprehensive
3. Large gap in the filter tube. Any sieve tube gap size with a gap
between 0.02mm-60mm can be made according to actual needs to meet
different application conditions.
4. The winding wire and all supporting wires are connected by
electric welding, which is strong and durable, and the working life
cycle is longer.
5. The longitudinal arrangement of the support wire and the form of
the continuous gap of the screen tube according to the actual needs
make the product have higher compress