This product is suitable for packaging of infusion medicine in pharmaceutical industry. It is produced in a clean plant which meets the GMP standard. Our main working procedures are strictly obey the operating rules which can meet the cleaning requirements that the industry need.Also the facilities we used in the whole process are under a standard management in our factory, we will keep regular inspection and cleaning each week to make sure qualified products. EURO BFS Cap, Plastic Cap, PE Assembled Cap, Bfs Cap For Iv Solution Bottles SUZHOU CRH PHARMACEUTICAL TECHNOLOGY CO.,LTD , https://www.crh-health.com
The filter is a device for removing a small amount of solid particles in the liquid. When the fluid enters the filter cartridge with a certain size filter, the impurities are blocked, and the clean filtrate is discharged from the filter outlet. When the cleaning is required, the screw is used to clean the tube. The bottom screw plug, drain the fluid, remove the flange cover, pull out the filter cartridge, and reload it after processing.
It is well known that the core of the filter is a filter membrane, which is a film filled with finer pores on a microporous support layer (support). There are many materials for making filters, which are classified into organic membranes (such as polysulfone hollow fiber membranes) and inorganic membranes (such as ceramic membranes). The membrane filter has high filtration precision, the particle size control is not disordered, and the backwash is easy to restore function. Therefore, the use of maintenance is extremely convenient.
Filtration Mechanism and Influencing Factors Filtration Mechanism There are two main types of filtration mechanisms for fluids. One is based on the size of the particles to separate, such as interception, sieving and surface capture, etc.; the other is adsorption, ie the particles adhere to the filter under chemical/charge action. This requires each pharmaceutical company to choose different filter membranes according to their actual needs.
The characteristics of the fluid are related to the properties of the fluid. For example, the viscosity of the fluid and the chemical/ionic composition, the greater the viscosity of the fluid, the slower the flow rate under the same pressure, the more contact between the fluid and the membrane, and the better the filtration effect; for example, the mixing of the fluid and the membrane/ The contact time also has a large effect on the filtration effect, and the longer the mixing/contact time, the better the filtration effect. In addition, it should be noted that the characteristics of the fluid only affect the adsorption retention effect of the membrane on the fluid without affecting the exclusion of the particle size.
The premise of the operation is related to the actual operating conditions, such as the flow rate of the particles and the filtration pressure. In order to achieve good filtering results, generally choose a lower flow rate, the lower the flow rate, the better the interception effect. Practice has confirmed that the structural movement of the membrane is detrimental to filtration. Once the structure of the membrane changes during the filtration process, the particles and fibers can be precipitated from the depth filter, affecting the filtration effect. However, the velocity/pressure differential has only a significant effect on the adsorption cut-off, and the size exclusion effect is relatively small.
Particle type The particle type also has a great relationship with the filtration effect. The particles are divided into two types: deformable particles and non-deformable particles. Under a certain pressure, the deformable particles will enter the filter membrane and cause more filter mesh plugging, which will affect the filtration effect, such as gel filtration. However, when the immutable particles are filtered, a layer-like object is formed on the filter.
The type of filtration membrane is related to the type of filtration membrane. The pore size and structure of different filtration membranes are different. Some membranes are rigid in structure, and some membrane structures are movable. The nominal pore size of the pre-filtration membrane does not have the same national scale. Different manufacturers have their own definitions and methods, so it is necessary to pay attention to the selection and replacement of the business. The same is the 0.22μm pre-filtration membrane, which is filtered by different manufacturers. The effect will vary greatly. The common pore size of the sterilization filter is defined by the law, and each merchant performs a unified scale, which is relatively simple when selecting and replacing.
The filter material is related to the filtered material. The filter material is classified into two types: hydrophilic (water infiltable) and hydrophobic (water infiltable) according to the relationship with water. Hydrophilic filters are mainly used for filtration and sterilization filtration of water or water/organic solution mixtures, such as cellulosic materials (regenerated cellulose, mixed cellulose ester), PVPP polycarbonate, PVDF modified polyvinylidene fluoride The hydrophobic filter is intercepted or "guided" into the filter through water, mainly used in solvent, acid, alkali and chemical filtration, tank / equipment respirator, process gas, fermentation intake / exhaust filtration, such as PTFE polytetrafluoroethylene, PVDF polyvinylidene fluoride, polypropylene, polysulfone, polycarbonate, and the like.
Filter characteristics and structure filters are generally divided into four types: laminated filter, stacked disk filter, and bag air filter dust filter.
Filters are often thought of as a simple mesh or sieve, and filtration or separation is carried out on a long surface. This is the way of the past. Most filter walls now have a certain thickness, which means that the filter equipment has a depth, which helps to remove contaminants in the form of "curved channels".