The filter and filter are small devices that remove a small amount of solid particles from the fluid, protecting the normal operation of compressors, pumps, valves, meters and other equipment. When the fluid enters a filter cartridge with a certain size filter, The impurities are blocked, and the cleaned filtrate is discharged from the filter outlet. When cleaning is required, the detachable filter cartridge is taken out. First, the filter and the filter function of the filter and the filter are used to remove the fluid. Small equipment with a small amount of solid particles can protect the normal operation of compressors, pumps, valves, meters and other equipment. When the fluid enters the filter cartridge with a certain size filter, its impurities are blocked, and the clean filtrate is The filter outlet is discharged. When cleaning is required, the detachable filter cartridge can be taken out and refilled after processing. Therefore, it is extremely convenient to use and maintain. Garbage debris in pipes often causes damage to equipment, such as scale, rust, composite sealants, welding slag and other solid particles, which may enter the piping system, in order to prevent the adverse effects of fluids containing dust and particles on the equipment. , often use filters in the pipeline. In order to prevent the pump from being invaded by construction waste left in the pipeline, a filter device may be installed upstream of the water pump. The filter filters out solid particles in liquid or gas to protect the equipment from damage and prevent blockage.
A filter is placed on the flow-through surface of the filter. When the liquid passes through, most of the impurities are blocked by the filter. The filter screen needs to be cleaned regularly to prevent clogging.
Scope of the filter 1. The filters listed in the standard are suitable for liquid and gas materials in chemical, petrochemical, light industry and other industries to filter solid impurities, usually installed in front of pumps or compressors or flow meters. On the pipeline to protect such equipment or instruments.
2. Wenzhou Yi Nai filter type mainly includes temporary filter, automatic filter, integrated water processor, quick open filter, differential pressure filter, double switching filter, Y and T type and blue filter And so on.
3. The standard includes two series of metric and imperial: metric series: PN10, PN25, PN40 three pressure levels; imperial series sub-classl50 (PN20), Class300 (PN50). Two pressure levels. The apex and flat top cone filters in the metric series are rated from PN6, PN6, PN10, PN25.
4. The main structural materials of the standard filter are cast iron, carbon steel, low alloy steel and austenitic stainless steel "target=_blank> stainless steel, the working temperature range: cast iron -20 ~ 300 ° C, carbon steel -20 ~ 400 °C, low alloy steel -40 ~ 400 ° C, stainless steel "target = _blank> stainless steel -196 ~ 400 ° C.
5. The standard filter uses 30 mesh/in stainless steel "target=_blank> stainless steel mesh as the standard mesh to intercept solid particles with a particle size of not less than 614 μm.
Second, the filter filter filter commonly used in the filter plate and filter mesh two forms.
1. The perforated screen is made by punching a large number of small holes on a flat plate of the required material, and then rolled into a cylindrical shape. The sieve holes are relatively large, and the pore diameter is generally 0.8 to 3.2 mm, so it can only be used for filtration. General pipe trash.
2. The filter mesh is a mesh-shaped filter mesh woven with fine thin metal wires, which is generally lined on a skeleton made of a perforated sieve to support the sieve. This filtration accuracy is finer than that of a perforated plate only, with a mesh size of up to 0.07 mm, which filters out finer impurities. Filters are often referred to by the term, and "mesh" means that "mesh" means the number of cells per square inch of screen.
The corresponding passage diameter of the filter is determined by the diameter of the wire and the size of the mesh. The maximum particle size can be obtained by geometric calculation.
However, the screen is a two-dimensional net, and the position of the foreign particles when they reach the mesh is random. Therefore, when the slender particles reach the filter, they may pass or may be stopped. If there is any problem, you can use it. For fine mesh. The filter area is the area that can be used to remove impurities. The larger filter area makes the frequency of cleaning the filter much lower.
The effective flow area is proportional to the mesh area of ​​the entire screen, usually expressed as a percentage, which directly affects the flow characteristics of the filter. The larger the effective area, the better the flow characteristics and the lower the pressure drop across the filter. Since most filters have a large effective filtration area, the pressure drop across the filter is very low and can be used in steam and gas systems. However, in pumped water systems and viscous fluid systems, the pressure drop is large. The filter uses a flow coefficient KV value to indicate the flow capacity.
The material of the filter is also varied. Most of the steam systems are austenitic stainless steel "target=_blank> stainless steel. This material is strong and resistant to corrosion. When the filter is applied to special chemicals or seawater. Use a mesh of Monel copper-nickel alloy material.
Please read the role of filters and filters when using Wenzhou Yi Nai products.
"This article refers to http://"http://news.chinawj.com.cn
Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
What is better concealed or exposed shower?
Exposed shower valves are a good choice if you have solid brick walls that are unable to house a concealed shower valve. They are quicker and easier to fit as it is only the hot and cold water pipe feeds that need 'chasing in' within the wall, not the whole valve.
Where should a shower mixer be placed?
When installing shower fittings, the proper height is often overlooked until it is too late. The height of the shower valve and spout is critical to ensure ease and comfort when using the shower. If set too low, showering can be uncomfortable and challenging, and if set too high, they could be hard to reach properly.
Thermostatic Mixer Shower, Exposed Shower Mixer, Mixer Shower With Shelf, Square Mixer Shower, Wall Mounted Shower
Kaiping Jianfa Sanitary Ware Co.,Ltd. , https://www.jfsanitary.com