Duplex strainers also form an integral part of desalinization equipment where they eliminate unwanted solid matters or dirt from the inlet before the salt removal process.

There are different areas where pipeline duplex strainers mean equipment protection, cleaner products and simpler separation of unwanted solid materials from liquids.

This type of duplex strainer is economical, simple and trouble-free design fitted with pressure-rated plug valve to the straining chambers.

An ideal duplex filter working principle should allow for overhaul of filter media while running, and the duo filter element in the assembly provides redundancy.

Also, duplex strainers are similarly used in the same way in refineries as well as in oil pipelines to protect meters and pumps from undesirable materials.

ii. Carbon steel is suitable for applications with higher temperature, mechanical or thermal shock. It’s a perfect choice for petrochemical and oil industries.

Once the clogging indicator alarms, it is recommended to immediately carry out basket filter element changeover exercise.

All these duplex strainers can be put into use for chemical industry, oil and gas industry, pulp and paper industry, pharmaceutical industry, metals and mining industry, water and waste management, power industry, petrochemical and refining.

It is usually fitted with a unique ball-valve cartridge flow diverter that helps isolate the two basket chambers as well as to prevent medium overflow.

Tonnages per Cubic MetersSpecial Soil = 1.3T per M3Organic Loam = 1.6T per M3Screening = 1.6T per M3Rubbles = 1.8T per M3 /Refer compaction table belowPremix = 1.8T per M3

Duplex StrainerPrice

Filson 4 inch duplex strainer provides a continuous work with two seperate strainer baskets working by turns. Spare both time and labor and improve the filtration efficiency to the maximum at the meantime.

Here, pipeline duplex strainers help remove skins, pulp or foreign matters from blended fruit juices. On the other hand, they are used to take out lumps from honey and chocolate syrup.

Also, the duplex filter element surface is critical in determining the differential pressure, hence, it is fitted with an electrical switch, which closes contacts to alert a lodged filter.

iv. Make sure the handle completely turns into place, this will protect the operator from leakage if a tight shut-off is not immediately incorporated. Do not rush in but carefully undo the drain plug-in that chamber to release pressure before fully accessing the chamber.

For offshore applications, extremely compact design is recommended to promote smooth operation as well as a standby option in a single duplex unit.

This helps avoid damages from by-products, dirt and scale and constantly averting costly downtime by installing pipeline duplex strainers preceding the line.

Rubble RatesCubic metres to tonnesMultiply cubic metre rate by the following depending on usageBy 1.8 for spreading onlyBy 2.0 for compaction with a vibrating plateBy 2.2 for compaction with a small rollerBy 2.4 for compaction with a large roller

A ball type duplex strainer effectively removes debris and dirt from medium flow as well as provide protection on other sensitive components.

In order to achieve low pressure loss, the medium is taken through a rather straight flow path that experiences minimal diversion in the directional flow.

Keckleyduplex strainer

Filson supplies various duplex strainers types, such as 2 inch duplex strainer, 6 inch duplex strainer, duplex oil strainer, duplex water strainer, stainless steel duplex strainer…

In all these systems, in case the duplex strainer is clogged or there is a breakdown, simply switch to the other chamber.

This allows you to give the best in-pipeline protection in various industries such as chemical plants, petrochemical plants, process plant and refineries.

Do you feel like your grass grows quickly, but never really looks that great because it’s too sparse? You might notice your neighbour’s lawn always

However, it does not mean that those basket filter elements are perfect as at times they may breakdown or need an overhaul.

Newtons Building and Landscape Supplies is your one-stop-shop for irrigation needs. Our range includes rural and domestic irrigation products and systems, poly pipe, sprinklers, valves, irrigation controllers, poly fittings, and more.

Filson designs and manufactures high-quality duplex basket filters and strainers to top brands in different industries. Like the Chemical industry, Power plants, air-conditioning and refrigeration technology, automotive and construction machinery industry, Shipping processes, Lub oil filtration, Ballast Water, and so on.

From patio pavers to garden edging, Newtons Building & Landscape Supplies has you covered. Our Adelaide paving centre offers a massive range of products, including modern and traditional sleepers for retaining walls and more.

When the fluid drains to a level below the top of the basket filter element, close the drain valve, and go ahead and remove the basket.

The system also contains a valve handle installed between the two baskets to switch the flow to one strainer while the other is being cleaned or changed out. On some Filson duplex strainers, the valve will be designed and built to work automatically and the independent strainer will perform a self-cleaning operation.

The new technology has made most manufacturers to rely on the novel-modular structural design concept that allows for use of fabricated body.

Filson duplex water strainer is the best choice for a water system. It captures the particles, solids and impurities of the passing water flow to filter the medium. With two independent strainers, it allows a high working efficiency.

Duplex StrainerSymbol

And of course, whenever you’re buying duplex strainers, they should come with differential pressure gauges and electrical switch units.

Most products of cosmetics and pharmaceuticals that contain undissolved matter or undispersed clumps flow into pipeline strainers.

And the table below shows a summary of filter elements technical specifications courtesy of Hydac as per the industry recommendations:

There are somewhat four types of duplex strainer structures differentiated by the medium flow diverter mechanism and size.

Filson 2 inch duplex strainer is a type of basket strainer built to fit a fuel, oil or water piping system and it is used to remove large particles of dirt and debris.

iii. First, identify the chamber to be cleaned. Of course, you can identify it using the position of the lever handle. Therefore, you have to turn the plug handle in the position of the other standby chamber.

iv. Stainless steel the most suitable housing material for duplex strainers where corrosion poses the greatest challenge. That is why most chemical, beverage and food, and pharmaceutical industries widely use stainless steel strainers.

vii. Continue to replace the washer and drain plug. Also, check whether the O-ring is still in condition otherwise, replace it.

Leave your name, email and requirements of connection size, flow rate, operation temperature, strainer housing and other duplex strainer specifications in the information sheet, our professional engineering sales will show you a suitable duplex strainer.

Newtons Building and Landscape Supplies have a huge range of landscape garden supplies available. From mulches and ground covers, fertiliser, turf to compost, soil and loam, we have it all. With over 6000 products so you can be sure that we have everything you need to build the perfect home and garden.

The integral ball-valve system design provides an instantaneous shutoff and bubble tight sealing at the point of diversion.

Note that leakage around the strainer housing is due to poorly tightened bolts or cover knobs, damaged or dirt cover seal, drain plug and vent plug.

Newtons Building and Landscape Supplies has a huge range of products for tradies, builders, and DIY enthusiasts. From sand, metal, and rubble to cement products and masonry blocks, we have everything you need for your building or renovation project.

x. Restore the plug into its original place to avoid damage to the O-ring. You may now move the lever-handle slightly to allow for partial medium flow into the cleaned bowl to vent-off air and precisely re-seat the bleed screw.

This helps to eliminate potentially dangerous and costly leakage into the unused chamber during cleaning and routine maintenance.

vi. Use pressure water to thoroughly clean and flush the chamber, but remember to protect the basket chamber screen from intentional contamination during the cleaning. The bottom section is clean or filtered part of the duplex strainer.

They are fitted with dry-gas seals that are extremely sensitive to fluid particulates such as aerosols, condensates and solid particles.

First, before trying to remove the basket filter element, you must release pressure within the strainer, and make sure that specific unit is cooled off.

Furthermore, using duplex strainers help improve occupational health and safety at work as well as protect the environment.

This duplex strainer structural design permits no operation interference because a special plug port is infused in the diverter mechanism plug.

The duplex filter element consists of innumerable housing containing with a couple of 3 µm filters, check valve and a differential pressure switch-system.

This gap allows the seal gas to flow, and to protect the seal for longer service life, the seal gases must be strained appropriately.

v. Take out the cover nuts to lift out the cleanable screen to purge out the sediment or dirt lodged on the perforation of the screen.

The duplex filter assembly is designed to ensure a clean filtered medium supply in an oil filtration system under pressure.

Filson 12inch duplex strainer, with special material and robust construction, can be applied in many industrial usage including chemical, pharmaceutical, water and waste management.

At Newtons Building & Landscape supplies, we pride ourselves on selling the best quality products to industry standards. We only sell products that are covered by the manufactures warranty.

As the oil purification systems filter gallons, the filter media in operation traps and removes impurities from the medium stream.

Filson stainless steel duplex strainer is mainly made of stainless steel 304 or stainless steel 316. The special material makes it possess a good rigidity and high strength and with excellent temperature and corrosion resistance, stainless steel duplex strainer is always applied under tough conditions.

However, before rushing to open up the strainer, make sure you check whether there is any leakage, but if none continue to the next step.

DuplexYstrainer

Industrial parks sewer pipelines incorporate strainers to fish out solid materials that can build-up and lead to blockage of the waterway.

Filson provides 10inch duplex stainer in a high design and manufacturing standard according to ANSI and ASME. And it can be customized to fit your specific needs.

I know you’d wish to remove debris, dirt or large particles from oil, water or fuel without shutting down the entire system.

viii. Now, take back the screen into the strainer’s chamber and make sure that its handle protrudes above the top of the strainer body.

Just like ball type duplex strainer, lever-handle is used to accomplish the medium change-over by turning it through a 900 arc manually by hand(s).

Duplex strainerdrawing

Therefore, whenever the strainer basket requires to be cleaned, you should turn the lever-handle thereby setting the used chamber free.

In chapter 2, we learned about duplex strainer working principle, and here you are going to expound on duplex filter element working principle.

Duplex strainers are conveniently positioned at the intake of condensers, heat exchangers and pumps to avoid clogging of nozzles and flow meter.

Duplex Strainereaton

The two chambers of the duplex strainers come with a pleated or smooth filter elements through which the fluid flows from the inner to the outer piping.

It eventually clogs or get contaminated, the pressure differential shoots up between the duplex strainer input and output flow.

If you also need single basket strainers or a portable filtration system, Filson can also help with this. We request your inquiry on any problem with our duplex filters.

In essence, filter and strainer are semantically related words each standing for different meaning depending on the duplex filter design and specification.

i. You should wear all the necessary safety gear such as overall, gloves, goggles, etc. They will protect you from possible injuries.

iii. Bronze has better corrosion resistance properties. Also, it can withstand mechanical and thermal shock more effectively as compared to iron. On the contrary, it has a limited temperature range.

Now, you can carefully unpack the new basket filter element, remove the packaging papers and reinstall the basket at the same position.

The installation of two duplex filter element chambers allow for uninterrupted operation even during maintenance of duplex filter assembly.

ix. Check whether the cover seats on the handle correctly before touching the strainer housing units. Place the cover and cover nuts back to tighten it properly.

Hence, paper and pulp pipeline strainers trap and hold the unseen lumps as well as clean traces of paper or pulp from waste water effluent during discharge.

The filter chamber is kept under pressure while working to allow the fluid to flow via the basket filter element in the designed directional flow.

Newtons Building and Landscape Supplies has everything you need for rainwater tanks, pumps, pump repairs, and drainage solutions. We sell top brands like Maxiplas, Amari, Bushmans, Team Poly, and more. Our expert staff can help you choose the right product for your needs. We also offer custom-engineered sump and pump packages for hassle-free installation.

In order to present the market with smooth paper finishes, there is need to discuss the problem of unseen and undispersed clumps contained in coatings.

Therefore, it is very important to use duplex strainers to clean water drawn from the ocean or sea to avoid abrasive wear on the system components.

Filson manufactures 3 inch duplex strainer to adjust a 3 inch size pipeline. It can be made of stainless steel, carbon steel, cast iron and PVC to meet customer specifications.

Anyway, that was just a by the way – but I guess the type of basket strainer material is critical, you can’t just ignore it.

If the strainer contaminant indicator has never shown need for basket filter element replacement, then the by-pass valve could be no longer functional.

Duplex strainerworking principle

As the duplex strainer size increases, the use of the ball or plug type diverter design becomes cumbersome and impractical altogether.

A recommended safe differential pressure to start cleaning of the screen is 20 psi since the there is a rapid rate of increase in pressure drop when the screen gets heavily clogged.

Make sure that your order of new Filson duplex strainer or replacement meets all the specification as your present application. And then, it will ensure that the pressure of the system is always at a constant level.

Filson duplex filter mainly consists of two welded steel housing with covers that are fastened via screws and nuts. You can download this duplex filter PDF catalog to learn more about Filson duplex filters.

Therefore, fossil power generation must use duplex strainers not only to clean the fuel but also to protect the machines and clean water for cooling.

According to strainer industry, the screen openings is known as mesh, while the size of the opening through the basket filter media is called perforations.

hop the best artificial turf, instant lawn, and fertiliser supplies at Newtons Building and Landscape Supplies. Our range includes a variety of options to suit your needs, from natural-looking synthetic grass to lush, green instant turf. We also stock a range of accessories to make installation a breeze.

The duplex strainers come with an in-built lifting jack that is used to lift up the diverter plug off its port when operating the lever-handle.

Filson Metal Filter Cartridge is an ideal choice for backwash filtration, high temperature and harsh environment applications. It can be cleaned and re-used for many times.

As the pressure differential increases through the filter system, a preset limit is reached and pressure switches turn on because the contact closes.

You will hardly notice the difference between the two; duplex strainer and duplex filtering cartridge. Although, they both serve the same purpose.

Filson duplex strainer, as well as duplex type strainer or dual strainer, is a main basket strainer type manufactured by Filson. It is a perfect choice to provide continuous operation without any downtime during basket cleaning or change out.

Explore the best professional-grade tools and safety equipment at Newtons Building and Landscape Supplies. We stock a wide range of high-quality tools and safety equipment for professionals and DIY enthusiasts. With specialised tools for bricklaying, concreting, landscaping, plastering, and tiling, we have the right tool for every job.

When the system is in operation, the two separate duplex strainer basket works by turns to realize a non-stop working process. The work of a Filson duplex strainer is basically to remove impurities such as debris, huge particles and other dirt from fluids. It also guarantees a smooth flow of the fluid in the system.

In addition, they trap birds’ feathers, insects, leaves and many more to prevent ingress of cooling towers, which are open to the environment.

Discover the benefits of Hebel, the high performance building product made from Autoclaved Aerated Concrete (AAC). Newtons Building and Landscape Supplies are proud to stock Australia’s only manufacturer of AAC by CSR Hebel. Experience the durability and versatility of Hebel blocks and panels for your next construction project.

Filson duplex oil strainer, also named duplex fuel oil strainer, is an ideal strainer for oil handling systems. And it is also applied for those applications which require a continuous supply of oil without any interruption.

ii. Check both the pressure and temperature of the duplex strainer system. Furthermore, you should confirm that medium in the duplex strainer is neither hazardous nor cause and form of risk.

You need to consider so many factors, from type of material, design and ability to filter water, oil or any other fluid.

I will walk you through every aspect, from basic definition, working principle, installation to technical data of duplex basket strainers.

For the fossil power generation engines to work at optimum performance specification, their fuel-gas combustion chambers require clean and dry supply of gases.

4Duplex Strainer

The real trapping and collection of these coarser impurities in any pressure system is done by the screen filter element.

Looking for purified water in your home? Newtons Building and Landscape Supplies offer a range of water filter systems to suit your needs. Choose from undersink filter systems that turn your existing tap into a filter tap or whole house systems for chemical-free water throughout your home.

Filson manufactures duplex strainers with a wide range of connection size from 1inch to 24inch. And 8inch duplex strainer is one of them to block contaminants and unidentified matters from liquid, viscous and gaseous media.

Over years, there has been a tremendous development in the structure of duplex strainers to meet system or medium requirements.

xii. Alternatively, if you use an equalizing valve, it is possible to run it after refitting the top cover solely for the purpose of venting that chamber. However, the valve should be closed once the operation done and the cleaned chamber is ready for operation.