Duplex Self cleaning Strainer
Duplex strainers, like automatic filters, are used wherever continuous operation is desired without interruption of flow. Normally, two simplex filters are connected by a suitable changeover valve to make it a duplex design. For special applications, the duplex design can also be extended to Triplex or Quadruplex design using a suitable valve assembly.
While these strainers can be offered in semi or fully automatic configurations too, duplex filters are extremely useful to ensure continuous flow of fluid, without automation, to the system with critical rotating parts and components. Filters are available for water, as well as various viscous fluids and also for gases. Thermal, nuclear and hydro power stations and steel plants have many installations for re-circulating water and oil applications.
At any given time, only one of the two duplex strainer units remains operational and the other is in stand-by mode. Flow is switched over to the stand-by unit as the filter in operation reaches a predetermined value of pressure drop. It can be equipped with 25-3500 µ filter screen, 2 "- 36" caliber. The self-cleaning process of the filter is started by monitoring the differential pressure at the inlet and outlet of the filter at one time. Generally, the preset value of the differential pressure switch is 0.5bar (7psi). The filter has the advantages of continuous filtration, simple maintenance and safe operation, so it is widely used in many industries.
The now stand-by unit, which is choked, is available for cleaning and maintenance. The element can be cleaned or replaced as required. The strainers can also be made automated to make them backwashable / self cleaning duplex strainers.
Duplex self cleaning strainer
The features of this elements include:
Application industry:
Water treatment, pharmaceutical technology, food and beverage, petrochemical industry, power, electronics, printing and dyeing, construction, smelting, papermaking, coal mine, municipal administration, etc. Suitable for liquids: water, penicillin, protein, polymer, vitamin, citric acid, fermented liquid, chitosan, agarose (gel), silicone solution, wax, kerosene, monomer, soap, sorbitol, steroid, wet auxiliary, adhesive, pigment, ink, slip agent, paint, resin, rubber, ethanol, chocolate, milk, edible oil, high temperature oil, fruit juice. , coolant, diesel, etc
High Quality Construction |
Flanges designed and built to ANSI, DIN, and JIS specifications Material specifications in accordance to ASME and ASTM Each strainer is proof pressure tested per ASME standards before shipment |
Material Construction for a Variety of Applications |
Available in fabricated carbon steel,304 and 316 stainless steel to meet the demands of a wider range of applications Designed to ASME Section VIII Division I |
Low Maintenance Costs |
Quick opening swing bolt reduces the maintenance time Few replacement parts are required |
Low Installation Costs |
Inline connections |
Low Capital Investments |
Competitively priced Heavy-duty, large capacity baskets are designed for long life |
Large Capacity Baskets |
Provides for a low pressure drop Provides for a larger basket open area |
Directives and standardization |
|
Product validation |
Bossmanfilter, the filter elements built into them and filter accessories are tested and the quality are monitored according to ASME and different ISO test standards |
The development, manufacture and assembly of Bossmanfilter industrial filters and filter elements is carried out within the framework of a certified quality management system in accordance with ISO 9001:2000.
Applications
ChemicalsThere are innumerable areas where the presence of a pipeline strainer means a cleaner product, protection of equipment, and/or simple separation of solids from liquids. There is scarcely a chemical operation involving liquid flow which cannot be improved or guaranteed longer running life by the installation of a pipeline strainer in the line. |
PetroleumPipeline strainers clean unwanted material from petroleum products ranging from crude oil to gasoline. A specific case is fuel oil, which can contain gums, tars or other dirt that can plug the nozzles of an oil burner. Every industrial oil burner is equipped with a pipeline strainer to screen these out. Strainers are used in similar ways in refineries and in oil handling operations to keep debris away from pumps and meters. |
Pulp and PaperSmooth paper finishes require that coatings be free of pigment clumps. Pipeline strainers in the coating lines catch and retain the lumps. They are also used to clean traces of pulp or paper from white water effluent before it is discharged. |
Pharmaceuticals and CosmeticsOintments, lotions and similar products which may contain clumps of undispersed or undissolved matter are pumped through pipeline strainers. In the manufacture of lipstick, for instance, unwanted lumps can ruin the product. |
Power GenerationThe electric power industry uses strainers to clean water for cooling and to protect equipment. They also strain transformer oil to avoid clogging of the circulating lines. |
Industrial and Municipal WaterBossmanfilter strainers are used to take debris from lakes, streams and wells that can damage or clog equipment. They also remove leaves, insects, feathers, etc. from cooling tower water where the system is open to the atmosphere. For desalinization equipment, they take out dirt or other unwanted matter from the water before it is treated for salt removal. Spent waste water is frequently passed through a basket strainer to take out material which should not go into a sewer or a waterway. |
Paint, Ink and LatexUndissolved lumps of resin, skins or clumps of pigment can ruin costly coating products. They are hard to detect, yet easy to avoid when using Bossmanfilter strainers. |
Commercial Buildings, Hospitals and SchoolsPipeline strainers are used on cooling towers and boilers to protect them from damage due to scaling. |
Barine IndustryPipeline strainers are instrumental in handling sea water for cooling lines, fire control lines, sanitary lines and general cleaning lines. This water comes from outside the ship and can contain a good deal of undesirable matter. Strainers are used on board ships to clean fuel, hydraulic and lubricating systems. |
Food IndustryStrainers are used to remove bits of pulp, skins or other unwanted matter from fruit juices. They are used to remove lumps from chocolate syrup and wax from honey. The baking industry strains bone and gristle from molten lard with basket strainers, and also uses them to remove bits of dough, seeds, etc. from discharge water. Straining water allows it to be recycled and used for other purposes. |
Process EquipmentExpensive equipment is often protected against damage from scale, dirt and by-products, or from costly shutdown due to the presence of these materials, by installing a pipeline strainer ahead of them in the line. Heat exchangers, condensers and pumps use strainers on their intake sides. Flow meters and spray nozzles are kept from clogging by pipeline strainers. |
Tank Cars and TrucksA basket strainer installed on a tank truck which must dispense liquids can catch solid material which is not wanted. Many chemical products undergo changes during storage or transport which result in solid residues. The presence of solids in liquid fertilizers or pesticides, for example, can cause clogging of spray equipment. For this reason, many tank trucks and cars are equipped with strainers. |
| More Information For specific, detailed application information consult an Bossmanfilter Application Specialist. Bossmanfilter Pipeline Strainers are priBarily for liquid applications. Strainer Applications |
| Directives and standardization | |
|---|---|
Product validation |
Bossmanfilter, the filter elements built into them and filter accessories are tested and the quality are monitored according to ASME and different ISO test standards |
The development, manufacture and assembly of Bossmanfilter industrial filters and filter elements is carried out within the framework of a certified quality management system in accordance with ISO 9001:2000.
Specifications
Duplex self cleaning strainer
| Product Name | Duplex self cleaning strainer |
| Brand | Bossmanfilter |
| Liquid Flow Rate | 80-4200 m㎥/h |
| Line Size | 2" to 24" |
| Pressure rating | 10 bar/16 bar/25 bar |
| System working pressure | 0.25~2.5 Mpa |
| Water temperature range | 0 to 65 ℃ |
| Available filtration | From 50 to 3000micron |
| Pressure loss | < 0.1 bar |
| Connections | Flange |
| Backwash time | 12~18 seconds |
| Water consumption during backwash | 1%-3% of filtered water |
| Control model | DP/Timer/Manual |
| Cleaning way | Brush |
| Drive way | Motor drive |
| Filter element | Stainless steel 304 mesh |
| Filter housing material of construction | Carbon steel/SS304/SS316 |
| Sewage way | Fully automatic |
| Installation | Vertical |
| Rated operating voltage | 3ph/380V/220V/50Hz or Customized |
Directives and standardization |
|
Product validation |
Bossmanfilter, the filter elements built into them and filter accessories are tested and the quality are monitored according to ASME and different ISO test standards |
The development, manufacture and assembly of Bossmanfilter industrial filters and filter elements is carried out within the framework of a certified quality management system in accordance with ISO 9001:2000.
