Polymer pleated filter is a kind of pleated wire mesh candle filter made of stainless steel (304, 316L) or other metal woven cloth after spot welding, pleating and pressing. Two ends of the pleats are welded to form a cylinder. The filter media consists of a protection layer, a filtration layer and a support layer. The protection layer protects the filtration layer from direct contact with melt polymer and the support layer provides strong support for the filtration layer.
Polymer pleated filter can effectively remove impurities such as gels and other solid permeates from polymer melts in chemical fibers, textile and plastic industries. In addition, we can also offer polymer pleated filter made of other alloy materials such as Hastelloy, Monel for you to choose from and meet different needs.
The filtration system adopts one filter for filtering and one stand-by filter operation mode to achieve continuous, uninterrupted filtration process. First, the polymer melt enters into the filter from the bottom and flows from outside to inside. Impurities are trapped on the filter surface and clean melt flows from the filter inside to the clean melt pipeline at the top of the filter, and then flows out of the filter. When the differential pressure reaches the preset value, the filter filtration efficiency slows down, and the control system will convey the melt to another filter. At the same time, the filter for filtering is replaced and washed.
Polymer pleated filter needs to work under high temperature conditions and is commonly connected by thread (M20, M30, BSPP, NPT, etc.), flange, snap coupling, rod connection, special customization, etc.
BSPP thread
Flange connection
Special customization connection
| - | Size | Filter Area | ||||
|---|---|---|---|---|---|---|
| Model | Length L | Diameter D | - | - | ||
| - | inch | mm | inch | mm | ft2 | m2 |
| BD-PW-127-6 | 5 | 127 | 2.36 | 60 | 0.75 | 0.07 |
| BD-PW-254-6 | 10 | 254 | 2.36 | 60 | 1.82 | 0.17 |
| BP-PW-508-6 | 20 | 508 | 2.36 | 60 | 2.04 | 0.19 |
| BD-PW-762-6 | 30 | 762 | 2.36 | 60 | 5.15 | 0.48 |
| BD-PW-1016-6 | 40 | 1016 | 2.36 | 60 | 6.97 | 0.65 |
Note
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| Nominal Filter Rating (μm) | Support Layer | Filtration Layer | Protection Layer | Air Permeability (L/min/cm2) | Bubble Point Pressure (Pa) | Porosity(%) |
|---|---|---|---|---|---|---|
| 1 | 64 × 12 | 400 × 3000 | 200 | 1.81 | 360–600 | About 40% |
| 2 | 64 × 12 | 325 × 2300 | 100 | 2.35 | 300–590 | |
| 5 | 64 × 12 | 200 × 1400 | 100 | 2.42 | 260–550 | |
| 10 | 64 × 12 | 165 × 1400 | 100 | 3 | 220–500 | |
| 15 | 64 × 12 | 165× 1200 | 100 | 3.41 | 200–480 | |
| 20 | 64 × 12 | 165 × 800 | 100 | 4.5 | 170–450 | |
| 25 | 64 × 12 | 165 × 600 | 100 | 6.12 | 150–410 | |
| 30 | 64 × 12 | 400 | 100 | 6.86 | 120–390 | |
| 40 | 64 × 12 | 325 | 100 | 7.1 | 100–350 | |
| 50 | 64 × 12 | 250 | 100 | 8.41 | 90–300 | |
| 75 | 64 × 12 | 200 | 100 | 8.7 | 80–250 | |
| 100 | 64 × 12 | 150 | 100 | 9.1 | 70–190 | |
| Note: The number of filter media layers can be customized upon request. | ||||||
