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Regulating valve is a fluid control device, it can control fluid flow, pressure, temperature and other parameters, in order to achieve the purpose of regulating fluid flow characteristics. It is composed of a piston or ball spool, in which there is a manual or electric mechanism with adjustment function, it can control the position of the piston or ball spool, so as to change the pressure and flow rate in the valve, so as to adjust the flow characteristics of the fluid.
The main function of the regulating valve is to adjust the flow rate, pressure and temperature, so that the fluid flow characteristics are more stable, so as to improve the efficiency of the fluid. It can regulate the flow of fluid to keep it at a low level, thus saving energy; The pressure of the fluid can also be adjusted to keep it at a low level, thus reducing noise in the piping system; The temperature of the fluid can also be adjusted to keep it at a low level, thus preventing condensation in the piping system, etc.
Regulating Valve,Pressure Regulator Valve,Double Regulating Valve,Air Regulator Valve WUXI KVC-VALVE , https://www.kvgatevalve.com
However, with the continuous expansion of the market, as well as the delay in the introduction of relevant national quality standards, the number of artificial stone products in Wuhan is gradually increasing, and counterfeiting is also emerging. One is counterfeit well-known brands. Some manufacturers unite and use consumers to not understand the product, against the well-known brands on the market, by counterfeiting anti-counterfeit coding, parallel goods posing as genuine goods. The use of manufacturers to the market management is not strict, the warranty card does not give to the customer or do not paste anti-counterfeiting, gold medals and other means to achieve the purpose of deception; one is to directly use the consumer's greed and cheap psychology. Some unscrupulous manufacturers in the local and foreign countries did not apply indigenous methods. In the case that the product quality was simply not closed, instead of methyl methacrylate with industrial resins, calcium carbonate was used instead of aluminum hydroxide to hit the market at a very low price. Nowadays, most of the artificial stone that retails from 300 yuan to 400 yuan per meter on the market is of no quality and after-sales guarantee. It is easily broken, deformed, faded, and even toxic.
In order to protect consumers from the infringement of fake and shoddy products, the special list is for reference by consumers.
Genuine:
Generally have ISO series international quality system certification and related inspection report, pure methyl methacrylate and aluminum hydroxide as raw materials, non-toxic and odorless, good processability, not easy to break, using high-grade or imported paint, visual color, pure, natural , Textured, large-scale imported equipment assembly line production, stable quality, small batch color difference, delicate material particles, hand feel silky, good UV resistance, long-term use does not fade, there is a standardized marketing network, service is guaranteed, Products have security signs, maintenance manuals and product quality assurance, 10-year 15-year commitment to quality assurance, the market price of 500 yuan -800 yuan / meter or so.
Bad product:
Low-grade industrial resin and calcium carbonate are used as raw materials, toxic odor, poor processing, easy to break deformation, low-grade pigments, visual color turbidity, plastic surface texture, small equipment or soil equipment, unstable quality , Lot color difference, material particles larger, hand feel a rough feeling, poor lightfastness, generally faded in a year or two, generally rely on small store sales, market price confusion, generally less than 400 yuan / meter, in a specific During the purchase process, you can refer to the following tips:
A look: The visual color of the sample is not cloudy, the surface has no similar plastic gum texture, and there are no small pores on the opposite side of the plate.
Two smells: No smell of nasal odors, chemical smell.
Three touch: hand touch the surface of the sample has a sense of silk, no astringent, no significant level of unevenness.
Four strokes: The surface of the sheet was scratched with a fingernail without any visible scratches.
Five touch: The same two samples hit each other, not easy to break.
Artificial stone, scientific name polymer mineral filled composite material, the United States DuPont's patent technology invented in the 70s. The main components are methyl methacrylate (MMA), natural ore powder, natural pigments and other raw materials. The products are non-toxic, non-radioactive, non-sticky, non-porous, antibacterial, mildew proof, impact resistant, easy to maintain. , seamless stitching, arbitrary modeling and other advantages. As a replacement type of new countertop material, it has been widely welcomed by consumers.