Because the application range of the valve is very wide, different working conditions will have different requirements for the valve. In order to speed up the inquiry and avoid unnecessary repetition and controversy, Hongfeng Valve Network recommends that customers can purchase the product at the time of inquiry or order. The valve makes a clear description.
The following is a valve ordering description recommended by the valve network:
1. The nominal diameter of the pipe connected to the valve.
2. Valve operating conditions, installation environment, fluid medium, temperature range of the medium, pressure range.
Pressure-Temperature Ratings To meet actual needs, pay special attention to the pressure-temperature rating of the required valve. Pay special attention to the sealing material and the gasket material, which determine the pressure-temperature rating of the valve to a considerable extent. Sealing materials and precipitation materials are specified according to actual needs to meet or exceed actual needs.
3. Types of valves Gate valves, globe valves, check valves, ball valves, butterfly valves, regulating valves, etc.
4. How to connect the valve If the connection method is welding, the wall thickness of the connecting pipe is also provided; if the connection method is flange, the flange type is required.
The integrity of the piping system, future routine maintenance, anti-corrosion factors, on-site assembly, weight and safety are all factors that should be considered in determining the way the valve is connected to the pipe.
5. Material of the valve The material of the valve body and the material requirements different from the standard configuration.
6. Valve transmission method
7. Valve specifications
8. Other accessories Acid protection layer, locking device, bypass valve, etc.
9. Other requirements
What is Cosmetic raw materials?
In the Arbas region of 105° east longitude and 40° north latitude where the temperature fluctuation between day and night can reach 50 degrees in winter, there is an essential native goat breed, the purebred Arbas Baby Cashmere Goat, which features thin and soft hair, a pair of horns and pink ears. Arbas Baby Cashmere Goat looks small yet are the nobles of goats.
The famous Arbas Baby Cashmere Goat, as a rare breed living in the Ordos Plateau of Inner Mongolia, is concentrated in Otog Banner, Otog Front Banner and Hanggin Banner in the western part of the Plateau. Sumu, Arbas, Otog Banner is the primary production area of Arbas Baby Cashmere Goat for its favorable natural environment, with Arbas Mountain in the west, vast natural pasture in the center and desert steppe in the south. The semi-arid steppe climate provides excellent conditions for animal husbandry.
Due to its location in the desert steppe, the area is dry and windy with little rainfall and much sand. The temperature difference between day and night is extremely high, and the annual average temperature is 6.4 °C. In the long, cold and dry winter, the lowest temperature reaches -30°C to -40°C late at night, while in the short, hot and arid summer, the highest temperature is 36.4°C and the lowest -32°C, with annual precipitation between 200mm to 400mm. The adorable, lovely and lively Arbas Baby Cashmere Goat grows in such extremely harsh conditions, thus can produce rare and quality cashmere.
Arbas Baby Cashmere Goat`s two coats are pure white. The top layer or outer coat is bright and coarse guard hair to protect the undercoat that is softer and finer down. The quality of the cashmere fleece is determined by three indicators: the diameter, length, and density of cashmere fibers. Due to its unique genes, Arbas Baby Cashmere Goat has a superiority that can never be duplicated. Its secondary hair follicle is smaller than those of other goats, and its cashmere has an average diameter between 13μm to 15 μm. It can even produce cashmere with a perfect diameter of 14.5μm, with a pure cashmere content of over 55%, which is unique worldwide. The preciousness of cashmere results from the small amount of production of each goat. Therefore, Inner Mongolian Arbas Baby Cashmere Goat was officially named by the People`s Government of Autonomous Region in 1988 and was listed on the National Register for the Conservation of Animal Genetic Resources as Class-1 protected breed by the Ministry of Agriculture in 2001.
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