What Is Dual Filter Housing?
FiltEdge’s dual filter housing, also known as a duplex filter housing, is a model where 2 filters are used in parallel. Its biggest function is that it can make your production line 24 hours without stopping, avoiding the downtime caused by maintenance equipment, and achieving the purpose of letting you increase production capacity.
Dual filter housing mainly has bag type dual filter housing and cartridge filter housing which are 2 major types of filtration equipment. It is widely used in chemical, petroleum, food, electric power, water treatment and other industries. According to your filtration needs, you can choose the Dual Filter Housing with 0.1-2000μm precision, as well as the opening and closing method, inlet and outlet direction and linkage method, etc. FiltEdge provides you with in-depth customized service from product design to packaging and transportation.
Types of Dual Filter Housing
FiltEdge’s dual filter housing regular style is made of 2 single bag filter housings linked together, you can choose single cartridge filters, multi-bag filters and multi-cartridge filter links according to your needs.
According to the flow size, you can choose 1-6 bags of filters (common models), and can customize the bag filter with large flow.
Cartridge Dual Filter HousingThe precision range is from 0.1μm-100μm, you can match with single-core, multi-core and other filters.
Basket Type Dual Filter HousingMainly for neutral liquids, large flow rate, coarse particles and other working conditions, for you to protect the downstream equipment.
Advantages of Dual Filter Housing
The biggest advantage of FiltEdge’s dual filter housing is that it can provide you with stable filtration effect 24 hours a day at low cost when facing severe working conditions such as strong acid and alkali, high viscosity, high temperature and high pressure.
The precision ranges from 0.1μm to 2000μm, covering both coarse and deep filtration needs.
Whether coarse fixed impurities or viscous grease, dual filter housing can handle it.
The physically sealed switching method ensures that not a single drop of expensive slurry is wasted or diluted.
Purely mechanical structure, facing high temperature, extreme cold, lack of electricity, etc., still can operate stably.
Using the linkage switching valve, the cartridge can be cleaned and replaced without stopping and depressurizing, eliminating the loss of downtime.
It can be equipped with exhaust valve, safety interlock and other devices to ensure your personal safety.
Adopting stainless steel and other durable materials, the service life can reach 10 years.
Integrated or skid-mounted, providing more filtration flow in a smaller footprint.
Customized Dual Filter Housing
Whether it’s a compact U-shaped layout, a side-by-side layout or a traditional H-shaped layout, FiltEdge can customize the most appropriate piping design for your facility. Not only can we customize the filter layout, but we can also customize the special caliber, pneumatic, electric and other switching needs for you. Tell us your working conditions and production environment, and our engineers will customize the appropriate dual filter housing for you.
Application of Dual Filter Housing
Dual Filter Housing is nothing but adding one more same filter on the basis of bag filter and core filter, which functionally achieves the effect of “using one to prepare one”, so the application field of dual filter housing is exactly the same as that of bag/core filter housing. So the application areas of dual filter housing are exactly the same as bag/cartridge filter housing. You can use it to deal with petroleum, chemical industry, water treatment, food and beverage, paint and so on, i.e. it can do coarse filtration to protect downstream equipment for you, and it can do fine filtration to improve product quality.
Quality Control of Dual Filter Housing
FiltEdge dual filter housing factory has strict quality control management system. After the raw materials are imported into the factory, we will do the quality inspection of the materials again to ensure that the quality of the materials is 100% up to the requirements of your order. Each dual filter housing will be PT tested on the weld seam before leaving the factory to ensure that the weld seam is flat and smooth and not cracked. Dual filter housing will also be subjected to a hydrostatic test of 1.5 times the working pressure to verify the durability of the filter against pressure and to ensure the stable production of your production line.
After-Sales Service of Dual Filter Housing
As a dual filter housing supplier, FiltEdge not only sells a dual filter housing, but also values the operation of the filter equipment in your factory and provides you with strong after-sales service. We will provide you with detailed manuals, wearing parts lists, installation drawings and other manuals. We will also provide you with 24 hours remote technical support. If you need, we can arrange our technicians to come to your plant for installation, commissioning, maintenance, and operator training.
Certifications for Dual Filter Housing
FiltEdge’s dual filter housing has 2 basic certificates, ISO and CE, and for food and pharmaceutical industries, which require high safety and hygiene, our filters have FDA certification. If you need American Standard filtration equipment, we can install ASME standard to design and manufacture.
Why Choose FiltEdge's Dual Filter Housing?
When you choose FiltEdge, you are choosing a dual filter housing with a long-term guarantee. 20 years of industry experience, 3600 square meters of factory, and the supply of more than 6,000 sets of filtration equipments every year are the basis for FiltEdge to provide you with high quality products and services.
We can not only provide you with OEM/ODM customized filtration equipment, but also complete the process from design to shipment within 7 days. With our US warehouse and China factory, we can quickly provide you with stock and spare parts of regular specifications.
You can work with us through a variety of trade and payment methods, we 100% guarantee the safety of your money and goods.
Technical Specifications for Dual Filter Housing
Below are our regular dual filter housing parameters for your reference. For small flow single bag dual filter housing and super large flow dual filter housing, you can send us the working conditions, our engineers will help you to evaluate and give you the best suggestion.
- Technical Specifications for Dual Filter Housing
| Item | Duplex Bag Filter Housing | Duplex Cartridge Filter Housing |
| Structural Configuration | Dual-vessel parallel system with manual/automated linkage switching valve | Dual-vessel parallel system with manual/automated linkage switching valve |
| Filter Media Qty | Standard: 2 / 4 / 6 / 8 / 12 bags total
Custom: Up to 24 bags total | Standard: 5 / 7 / 12 / 21 rounds per vessel
Custom: Up to 100-200 rounds per vessel |
| Flow Capacity | 40 – 1,000m3/h (175 – 4400+ GPM) | 10 – 600 m3/h (45 – 2600+ GPM) |
| Filtration Rating | 1μm – 1000μm | 0.1μm – 100μm |
| Housing Material | SS304 / SS316L / Carbon Steel (Q235B) | SS304 / SS316L / Electropolishing Optional |
| Design Pressure | 6 bar / 10 bar (Standard); Up to 25 bar (Custom) | 10 bar (Standard); Up to 25 bar (Custom) |
| Operating Temp | -20°C to 150°C (Depends on seal material) | -20°C to 120°C (Standard) |
| Inlet/Outlet Size | DN50 – DN300 (Flanged) | DN40 – DN200 (Flanged / Tri-clamp / Thread) |
| Opening Method | Rocker-arm / Eye-bolt Quick-open design | V-clamp / Eye-bolt / Swing-bolt |
| Sealing Material | EPDM / Viton / Silicone / PTFE | EPDM / Viton / Silicone / PTFE |
No. FiltEdge’s dual filter housing utilizes a hydrodynamically designed linkage valve, not just any valve. The linkage valves are designed to be non-dulling, allowing you to open both the inlet and outlet at the same time, so you don’t have to deal with the possibility of the pump being held up. Secondly, the linkage valve allows the closed flow to equal the opened flow, allowing the 2 filter buckets to smoothly hand off the flow, keeping the total flow in balance and not exposing your downstream equipment to pressure surges and decreases.
There is a risk of this. We recommend that you install an air venting valve on the Dual Filter Housing to pre-fill and vent the Standby Vessel through the equalizer pipe and air venting valve between the 2 Filter Vessels each time you need to activate the Standby Vessel, to avoid the phenomenon of airlock from affecting the stability of your system.
It is strictly forbidden for you to perform such a dangerous operation. In industrial filtration, the slurry that is filtered may be hazardous, and forcible dismantling of precision parts by operating under pressure will increase the level of danger and cause damage to your personal safety and the production environment. We recommend that you lubricate valve stems and other parts regularly. In the unfortunate event of a jamming situation, you can first relieve the pressure through the bypass system before carrying out maintenance operations.
You can determine this by looking at the differential pressure gauge on the dual filter housing. Usually, when the differential pressure reaches 0.05-0.1MPa, you can consider changing the tank.
