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Radial External Wire
These tubes are composed of a surface profile wire that is spirally wrapped around axial support wires and attached to each other by resistance welding.
- Commodity name: Radial External Wire
- Product Description
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Radial External Wire
These tubes are composed of a surface profile wire that is spirally wrapped around axial support wires and attached to each other by resistance welding.
There are two types:

The direction of the filtering flow determines the position of the surface profile wires in relation to the support profiles.
The flat side of surface profiles is on the outside of the tube, the flow direction is from out to in (FOTI); The flat side of surface profiles is on the inside of the tube, the flow direction is from in to out (FITO).
Applications
(1)Nozzles
(2)Laterals (distributor / collector)
(3)Rotary Drum
(4)Resin Trap / Inline Strainer
(5)Slot Tube for Water Well
(6)Cylindrical intake screen
(7)Water well tube
Support Elements
The slot tubes can be used as a carrier for another filter medium. Compared with conventional support elements (perforated tube, wire mesh), the support elements have the advantages as below.
(1)Strong mechanical constructions
(2)Larger open area
Btoslot specializes in many different stainless steel alloys
| AISI | DIN | UNS | Trade Name |
| 430 | 1.4016 | S43000 | |
| 304 | 1.4301 | S30400 | |
| 321 | 1.4541 | S32100 | |
| 316L | 1.4404 | S31603 | |
| 316Ti | 1.4571 | ||
| 2.436 | N04400 | Monel400 | |
| 2.4819 | N10276 | HastelloyC276 | |
| 2205 | Super duplex | ||
| 2507 | Super duplex |

Wedge wire, also known as profile wire or V-wire, can be configured to a variety of forms, sizes, and open areas. The result is a very strong product with a smooth surface that is resistant to clogging. This makes wedge wire advantageous for a diverse range of applications that require screening, filtering, dewatering, sizing, drying or cleaning.
Better in every way
Compared to wire mesh and perforated metal, Wedge Wire’s continuous slots have more open area. Their consistent slots are more durable and virtually non-clogging to reduce media abrasion.
Designed and manufactured
Our grids have great design flexibility and are constructed in a wide variety of shapes and sizes and from a variety of corrosion-resistant alloys. Specific processes and vessel requirements can be accommodated. For available corrosion-resistant materials, see material list.
Benefits of our support grids include:
(a)Continuous-slot design provides an increased open area .
(b)The continuous slot formed by V-shaped surface wires ensures a two-point contact between the particles and the slot to minimize clogging.
(c)Wide range of profile wires are available to suit most applications.
(d)High-precision slot sizes are available to meet your requirements.
(e)V-shaped surface wires allow for easy cleaning.
(f)Very low pressure drop.
(g)Additional supports are utilized to accommodate extreme load conditions.
(h)Low maintenance.
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