Lvyuan Industrial Filtration Solution

MBR membrane

PP pleated filter element

by:Lvyuan      2021-01-23


PP pleated filter element is made of ultra-fine polypropylene fiber membrane and non-woven fabric or (silk mesh) inner and outer support layer folded. The center rod and end cover of the filter element shell are processed by hot-melt welding technology, without any glue, and no leakage. No secondary pollution.


PP pleated filter element is made of ultra-fine polypropylene fiber membrane and non-woven fabric or (silk mesh) inner and outer support layer folded. The center rod and end cover of the filter element shell are processed by hot-melt welding technology, without any glue, and no leakage. No secondary pollution.

The pleated filter element adopts the folding type, the membrane filtration area is large, the dirt holding capacity is large, the pressure difference is low, and the service life is long. The entire filter element is 100% pure PP material and has a wide range of chemical phase capacity.

Accuracy of pleated filter element: 0.1μm, 0.22μm, 0.45μm, 1μm, 3μm, 5μm, 10μm, 20μm, 30μm, 50μm Filter length: 5″, 10″, 20″, 30″, 40″ Filter diameter: outer diameter φ69mm, The inner diameter is φ28mm.


Application field

Electronics industry: reverse osmosis water system pre-filtration, deionized water system pre-filtration.

Pharmaceutical industry: filtration of medicine, biological and plasma products, compressed air and gas filtration.

Food and beverage industry: filtration of mineral water, beverages, juices, and alcohol.

Chemical industry: organic solvents, ink filtration.

Petroleum industry: oilfield water injection filtration.

Others: electroplating liquid, metal cutting liquid, photosensitive resist and magnetic medium filtration, etc.


Features
Full polypropylene structure

Adopt gradually dense fiber material

0.1 to 40um pore size

High surface area

Broad chemical compatibility

Using thermal welding technology

Low pressure difference and long service life



PP filter parameters
PP pleated filter element is a membrane pleated filter element with a membrane as the core. After the material of the filter membrane is determined, the polypropylene non-woven fabric (net) is divided into diversion layer and support. After folding, it is inserted into the center tube and loaded into the shell. Adopting adhesive-free hot-melt welding technology, the fusion seal constitutes a complete integrated filter element, which does not contain chemical contaminants, and the product is 100% integrity tested. Endotoxin ≤ 0.25EV/ml meets the US Pharmacopoeia (VSP) standard.

The discounted structure of the PP pleated filter element has a large filtering area, low initial pressure difference, fast flow rate, small filter volume, and low cost. Due to the combination of pre-filtration and final filtration, the filter element has a large dirt holding capacity. The service life is longer than a single pore size filter element. The single pure polypropylene material is easy to judge its chemical compatibility. However, in addition to the above advantages, PP pleated filter element also has low working pressure (generally not more than 0.3 Mpa, if the pressure exceeds the pressure, the micropores will expand), the solid is easy to filter, especially the working temperature is greater than 60 ℃, the recoil effect is not ideal Wait for the disadvantage.

Common specifications: 5' 10' 20' 30' 40', interface type: 215 222 226 M30 M36, polyethersulfone membrane folded filter element (PES): high filtration accuracy, high flow, long life, good chemical stability. Scope of application : PH1-13, pharmaceutical, food, beverage terminal filtration. Absolute filtration accuracy: 0.1 0.11 0.45 0.65um.

This kind of PP pleated filter element is a double-layer polypropylene material discount structure, and its inner layer is (one of PP, PTFE, PES), which is the final filter layer, and the outer layer adopts a non-woven fabric with a pore size as the coarse filter layer. Play a pre-filtering role, the inner and outer brackets are made of polypropylene or stainless steel; therefore, the filter element is a combination of pre-filtering and final filtering. The filtration accuracy of the filter element is 0.10, 0.22, 0.45, 0.65, 0.8, 1, 3, and 5 pores, which can also be selected according to different requirements.

Sterilization operation guide

The sterilization of the PP pleated water filter element is very important for maintenance. However, online steam sterilization may damage the filter element. Therefore, a set of operating specifications must be strictly followed during the sterilization operation to reduce the generation of high temperature sterilization steam on the PP pleated water filter element. Damage.

Testing and sterilization methods:

Detect the pressure of the steam supply and the compressed gas, and set them to the value to be determined. At this time, the pressure value should be set between 1.5bar and 2bar.

Open valve a and valve b to purify the steam line until the condensate is completely removed.

Open valves c and d until the condensate is completely discharged.

Slowly open valve c to increase the inflow of steam, and wait 3 to 4 minutes to further heat the PP pleated water filter.

Partially close the exhaust valves b, d, and f to allow the steam containing water droplets to be continuously discharged.

Open valves i and j respectively to establish a steady flow of steam, allowing condensate and air in the filter to escape. At this time, pay attention to the pressure gauges p1 and p2, and keep △p(p1-p2) less than 350mbar during filtration.

Ensure that all air and condensate are effectively discharged through valves b, d, f and valve j. During this process, a continuous stream of steam and water droplets can be seen.

The temperature of the steam flowing downstream in the PP pleated water filter element is measured to reach 121.1℃, and the temperature is ensured to be lower than 128℃, the timer runs, the sterilization time is set at more than 30 minutes, and the pressure and temperature values ??during the period must be detailed. recording.

After the sterilization is completed, close the steam supply channel and open the valve f to pass in compressed air.

After the steam is completely eliminated, close the valves b and d, increase the gas volume of the filter, and maintain the gas flow to make the entire system cool until the pressure temperature gauge shows about 30°C.

PP melt-blown filter element is a tubular filter element made of non-toxic and odorless polypropylene particles through heating, melting, spinning, traction, and forming. If the raw material is mainly polypropylene. It can be called PP melt spray filter element. It is not only used in water purification in large quantities. It also has outstanding chemical compatibility and is suitable for filtration of strong acids, strong alkalis and organic solvents. Strong dirt holding capacity, long service life and low cost.

PP pleated filter element adopts folding type, with large membrane filtration area, large dirt holding capacity, low pressure difference and long service life. The whole filter element is 100% pure PP material and has a wide range of chemical phase capacity.
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