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Slotted screen pipes
Manufacturing of screen pipes bases on tube through wall Deformational Cutting
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Fig. 1 - From standard tubes |
Fig. 2 - From tubes with longitudinal inside grooves |
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Fig. 3 - Slot filtering structure |
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Fig. 4 - Teflon (PTFE) filtering pipe |
Fig. 5 - Polypropylene (PP) filtering pipe |
Areas of application of slotted filtering pipes
- filters for water and wastewater systems
- aerators and water treatment and flotation plants
- filters for engineering
- filters in oil production
- sieves for powder sieving
Base advantages of filtering tubes
- Slot filtering structure has the ability to regenerate by counterflow of filtering medium,
- Tubular design of the filter ensures high filter strength
- Filtering tubes have ability to creat radial filtering sistems
Specifications |
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Parameters |
Value |
Material |
PE, PP, soft PVC, PTFE, UHMW PE and other thermoplastics |
Outer diameter, mm |
10...110 |
Length, m
- for OD<50 mm
- for OD>50 mm |
up to 4000
up to 1000 |
Wall thickness, mm |
2...6 |
Slot width |
from 20 microns to units of millimeter |
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Adjustable filtering tubes
Helical rows of through wall slots ensure adjustment of slot width with high precision by stretching/compressing of filtering tube.
This principle works when filter opens when washing
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Fig.1 - Filtering tube with helical rows of through wall slots |
Fig.2 - Structure of stretched tube |
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Fig.3 - Tube is compressed
Slot width is zero |
Fig.4 - Tube is streched
Slot width is 2 mm |
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Fig.5 - Filter with adjustable purity of filtration from 0 to 500 microns. |
Metal filtering tubes
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Fig.6 - Filtering structure |
Fig.7 - Brass filtering tube/ Slot width 70 microns |
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Fig.8 - Filtering structure |
PUBLICATIONS
Production of Slotted Polymer Filter Tubes by Deformational Cutting
Filtering Elements of a New Design and Equipment for their Manufacture
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