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Fully Welded Wedge Wire Screen Tube

Oct. 07, 2019

Fully Welded Wedge Wire Screen Tube


It is widely used in petroleum, papermaking, chemical industry, natural gas, food, sugar, starch, beer, water well sand control, and other industries worldwide. It is particularly prominent in the beer filtration industry and is one of the most widely used filters in the solid-liquid separation process for various liquid resources. The use of full program welding technology ensures the product's strict continuity and the formation of a uniform gap size. Compared with the welding technology commonly used in China, the sieve tube has considerable advantages in terms of surface smoothness, gap uniformity, and product quality, so as to ensure that users are more efficient and efficient.


Technical Parameter


Gap (mm): 0.02, 0.025, 0.03, 0.04, 0.05, 0.06, 0.08, 0.10, 0.15, 0.2, 0.25, 0.30-35, can also be made according to customer requirements.

Material: low carbon steel, galvanized low carbon steel, plastic spraying, stainless steel (304, 316L, Harrington alloy, etc.)

Length: 50mm - 6000mm

Outer diameter: 25mm-600mm

Connection form: groove connection or threaded connection, direct pipe head or screwed pipe head

Sieve wire specifications: conventional 0.75*1.5mm, 1*2mm, 2*3mm, 2.3*3mm, 3*5mm

Internal tendons: DN25mm/12, DN33mm/8, DN37mm/8, DN40mm/10, DN60mm/12, etc.


1. Schroder sieve tube adopts the world's advanced full winding welding technology. The special trapezoidal wire and triangular wire winding are welded on a group of supporting wires arranged round and round. The whole procedure welding, the winding wire is connected with the support rod by electric welding, which ensures the strict continuity and integrity of the product, thus forming the ideal gap size, and having the performance of maximum withstanding high pressure.

2. wire winding screen can be selected according to different needs. The main raw materials include: 304 types and 316 types stainless steel, Monel copper-nickel alloy, galvanized or not galvanized low carbon steel and thermoplastics material, mainly PVC and acrylonitrile butadiene styrene or alloy as raw material. Some other highly specialized materials can be used for water quality with special corrosiveness.

3. The gap opening of the wire winding screen is formed by the continuous wire winding to form the ideal gap size. The entire computer console monitors the operation, and supervises the entire production process manually. All production links are produced by professional production personnel using sophisticated professional equipment. The individual slot space of the wire winding screen can be different during the production process. In fact, in the case of worse geological conditions, even a single section of the sieve tube can produce different sizes of cracks. This is conducive to the maximum application of hydraulic conductivity in all strata. All production links of the product are produced by professional producers using advanced and sophisticated professional equipment. Product specifications and raw materials can be customized according to the needs of customers. All products are inspected strictly according to the authoritative standards of products to ensure product quality, thus ensuring the interests of customers and achieving the highest production efficiency with the most economical input.

Product advantage

1. Non-clogging: The cross-section of the screen surface wire is trapezoidal (or triangular). The gap on the screen tube is formed by two adjacent sharp angles. When solid substances pass through the screen tube, they contact the two sides of the gap. Therefore, in theory, the solid particles on the screen tube are either intercepted on the screen tube or through the gap of the screen tube, so it is impossible to form a third kind of blockage. Plug state. This is very important for reducing the running resistance of the equipment, maintaining good hydraulic distribution characteristics and enhancing the backwashing effect of the resin.


2. High strength: Because this element adopts the winding and welding structure of stainless steel wire, it has high strength. This kind of sieve tube can be cut on the grinding wheel cutting machine, and can also be processed on the lathe without loosening and deformation.


3. High flow rate: This kind of sieve tube has relatively small resistance. Compared with the plastic filter element with a similar size, it greatly increases its flow area. Therefore, under the same resistance, the flow rate obviously increases. In other words, with the same output, the number of filter elements can be reduced accordingly.


4, the adaptability of temperature change is good: obviously, compared with the ordinary plastic filter element, the temperature range of stainless steel wire winding screen is much wider than that of the plastic filter element.

5. Clearance adjustable: Different users, using different filter equipment and media, have different requirements for the winding clearance of the internal winding screen tube. Because the screen tube is continuously welded on special equipment, the gap between stainless steel trapezoidal wires can be adjusted. In this way, it can meet the needs of different users without increasing the cost, and the filter element made of plastic must be re-made mold to adjust the gap, so it is not easy to meet the special needs of users.

6. Corrosion resistance: As mentioned above, there are three main materials of stainless steel sieve tubes in China. These three materials can fully meet the requirements of various water treatment processes. For neutral water, acidic water, alkaline water, regenerate caustic soda, hydrochloric acid, sulphuric acid, salt and so on, as long as these materials are selected reasonably, all kinds of filtering equipment can be operated economically and safely.


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