2016年7月25日星期一

How to choose the right strainer?

strainer types. There are many forms in accordance with the structure and appearance can be divided into Y type strainersT-type strainerbasket strainer, etc. Material can be divided into stainless steel Y-strainer, steel Y-type strainers, according to the aperture size can be divided into large-caliber Y-strainer and small-caliber Y-type strainers, etc., how to choose the right strainer it? The following aspects should be considered:
1) The strainer medium of choice.
First, the chemical name in accordance with the fluid to be strainered, depending on the chemical with contraindications to find available strainers, then for its operating temperature, operating pressure, pH, operating conditions (eg, whether the need to withstand steam, hot water or chemical sterilization etc.), individual assessment, and does not apply the strainer removed. Use is also an important consideration, strainer such as medicine, food or cosmetic use of the material must be FDA permitted; ultra-pure water must be pure, does not contain emissions will affect the ratio of the impedance of the strainer; strainer gas shall be selection of hydrophobic material and whether "health level strainer" design and so on.
2) To determine the accuracy of strainers.
This is one of the most vexing problems. For example, to remove visible particles, to use 25 micron strainer; to remove the liquid cloud-like, to use 1 or 5 micron strainer; you need to strainer out the smallest bacterial 0.2 micron strainer. The problem is that there are two filtration units precision: absolute precision / nominal accuracy
Absolute accuracy is the particle strainer out 100% of the accuracy of a label. Any kind of strainer, this is almost an impossible and impractical, since 100% is a infinite value. The market known as absolute strainers such as films, etc., strictly speaking, can only be called "close to absolute" strainers, while others belong to the nominal accuracy, nominal accuracy, this is the main trouble lies: "Nominal Accuracy We do not have a common recognized and executable standard. " That A company can be set at a nominal accuracy of 85-95%, while Company B would rather set at 50-70%. In other words, a company of 25-micron strainer accuracy of Company B may be equal to 5 microns, or finer. On this issue, experienced professional strainer supplier can help the most suitable strainer, but the fundamental solution is to "try."
3)According to the temperature at which the viscosity of the strainer, professional strainer equipment suppliers can calculate the size of the strainer, the number of branch strainer installed, each cartridge can bear, and predict a flow rate of primary pressure drop. If it can provide a fluid impurities, and even estimated life.
4) Filtration system of design.
This may involve a wider scope, such as the selection of a pressure source, how much pressure to apply the strainer life completely, whether two sets of strainers in parallel, to fit the continuity of the operation of the system, for a wide particle size distribution How should the occasion with a coarse strainer and fine strainer, the system whether check valve or other devices, and so on. These require the use of units with strainer suppliers worked together to identify the most appropriate design.
Should you want to know more about strainer from Reliable China ball valve manufacturer, please visit www.reliavalve.com or email us via sales@reliavalve.com.
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