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**Duplex Bag Filter with Stainless Steel Filter Housing**
**Basic Information:**
- **Model NO.:** YLD
- **Usage:** Environmental Protection, Chemical Industry
- **Style:** Vertical
- **Certification:** CE
- **Water Temperature:** 0–90°C
- **Material:** Stainless Steel SS304, SS316
- **Max. Flow Rate of Per Filters:** 90 to 1,080 m³/H
- **Filtration Precision:** 1–1,000 micron
- **Bag Dimension:** 180 × 810 mm
- **Transport Package:** Plywood Case into Container
- **Origin:** Jiangyin, Jiangsu
**Product Details:**
- **Type:** Water Filter
- **Motive Force:** Pressure
- **Performance:** Efficient Filtration
- **Item:** Duplex Bag Filter with Stainless Steel Filter Housing
- **Rated Water Capacity:** 2.5–720 m³/H
- **Bag Quantity:** 2 PCS to 24 PCS
- **Water Pressure:** 0.6 MPa, 1.0 MPa
- **Bag Material:** PP, PE
- **Trademark:** YLD
- **Specification:** CE, SGS
- **HS Code:** 842121999
**Product Introduction:**
The Duplex Bag Filter is a specialized liquid filtration system designed to efficiently remove contaminants from liquids, significantly improving their quality. When in operation, the liquid enters from the right side of the inlet and flows into the filter bag from the top. Due to the impact of the liquid and even pressure distribution, the filter bag expands and adheres to the stainless steel mesh wall. The liquid then passes through the bag and exits via the filter screen, completing the filtration process. Contaminants are trapped inside the bag and can be removed during cleaning or when replacing the filter.
Our company offers this bag filter in various specifications, using stainless steel (SUS304). The cylinder head and barrel are connected via quick-fitting flanges. The cylinder wall thickness starts at 2mm and can be customized according to customer requirements. The bags are secured using band springs or pressure levers. Filter materials include nylon, polypropylene, polyester, Nomex, and PTFE. This filter is widely used in water treatment, food and beverage, chemicals, acrylic devices, flower production, coatings, fine chemicals, petrochemicals, electronics, air-oil dust, binders, various oils, compressor refrigerants, and plating solutions.
**Main Features:**
1. The cover uses a union nut ring structure for easy replacement of the filter bag and even pressure application, ensuring a good seal.
2. A variety of bag materials, sizes, and filtration precision options are available to meet different flow and filtration needs.
3. Equipped with a supportive net tube that prevents bag deformation, enhancing effectiveness and extending service life.
4. Offers multiple connection modes (flange, inner wire, fast access) and various inlet/outlet configurations (side-in bottom or side-in side) to suit different installation requirements.
5. The bag is fixed with a spring mechanism to ensure tight sealing and prevent unfiltered liquid leakage.
6. The filter housing and supportive net tube are made of 304 or 316 stainless steel, offering excellent corrosion resistance, pressure resistance, and a polished, aesthetically pleasing appearance.
**Filter Bag Specifications:**
1. The bag has a large surface area and volume. Under the same filtration criteria, one 2# filter bag has the same capacity as 12–18 standard 10PP filter cartridges. It is an ideal choice for reducing costs and increasing efficiency.
2. **Size Options:**
- 1# bag: Diameter 7 inches (178mm), Length 17 inches (432mm)
- 2# bag: Diameter 7 inches (178mm), Length 32 inches (813mm)
3. **Material:** PE (polyester), PP (polypropylene)
4. **Technical Parameters for PP Bags:**
- Early bag drop: 0.14 Bar
- Ideal pressure drop: 1.4 Bar
- Maximum pressure drop: 2.4 Bar
- Recommended operating temperature: 71°C or lower
**Model Table:**
| Model | Flow Rate (m³/h) | Inlet/Outlet Dia. (mm) | Dimensions (mm) | Bag Qty. | Bag Spec. | Filtration Area (m²) |
|-----------|------------------|-------------------------|------------------|----------|-----------|----------------------|
| YL-1-219 | 20 | DN50 | 219×410 | 1# single| 180×410 | 0.23 |
| YL-2-219 | 40 | DN65 | 219×810 | 2# single| 180×810 | 0.46 |
| YL-2-400 | 50–80 | DN80 | 400×810 | 2# two | 180×810 | 0.92 |
| YL-2-500 | 120 | DN100 | 500×810 | 2# three | 180×810 | 1.38 |
| YL-2-550 | 140 | DN100 | 550×810 | 2# four | 180×810 | 1.8 |
| YL-2-650 | 160 | DN125 | 650×810 | 2# five | 180×810 | 1.84 |
| YL-2-750 | 200 | DN150 | 750×810 | 2# six | 180×810 | 2.3 |
| YL-2-800 | 220 | DN150 | 800×810 | 2# eight | 180×810 | 2.5 |
| YL-2-850 | 240 | DN200 | 850×810 | 2# nine | 180×810 | 2.76 |
**Packaging:**
The product is packaged in wooden cases suitable for container transport. The packaging ensures safe delivery and ease of handling during installation.
**Our Services:**
We offer 24-hour online customer support. If you have any questions about water treatment systems, feel free to contact us for more details!
**Contact Information:**
- **Mobile:** +86 13585066069
- **Alibaba Website:** [http://yldwater.en.made-in-china.com](http://yldwater.en.made-in-china.com)
- **Official Website:** [www.zgyld.com](http://www.zgyld.com)
- **Warranty Period:** 1 year
- **After-sales Service:** 800-827-87-226