After natural gas is collected, it needs to be liquefied and then convenient for storage and transportation. LNG import and export trade is generally transported by ship, and then arrives at the receiving station for re-gasification. Gasified natural gas is transported to the urban pipeline network to each household through pipelines. After the natural gas is collected, a series of purification is required. After pretreatment, the natural gas is stripped of heavy hydrocarbons, sulfides, CO2, water and other impurities, and then cooled to room temperature -160 degrees, which can be liquefied. All gaseous and liquid extraction, transportation, storage will be used to the valve, usually low temperature cut-off valve, low temperature gate valve, low temperature ball valve, low temperature butterfly valve, etc.

Coal chemical industry refers to the process of converting coal into gas, liquid and solid fuels and chemicals through chemical processing. It mainly includes coal gasification, liquefaction, dry distillation, tar processing and calcium carbide acetylene chemical industry. Coal chemical industry mainly includes coal gasification, liquefaction, dry distillation, tar processing and calcium carbide acetylene chemical industry. In the coal chemical industry can be used in the production technology, coking is the application of the earlier process, and is still an important part of the chemical industry. Syngas produced by coal gasification is the raw material for the synthesis of liquid fuels, chemical raw materials and other products. Direct coal liquefaction, I .e. high-pressure hydroliquefaction of coal, can produce man-made petroleum and chemical products. The pump valve equipment involved includes shut-off valve, water seal valve, sealing valve, safety valve, plug valve, trap valve, gate valve, globe valve, ball valve, butterfly valve, etc.

The pharmaceutical industry is an important part of China's national economy, is a combination of traditional industries and modern industries, 1. 2. three industries as one industry. Its main categories include: chemical raw materials and preparations, Chinese medicinal materials, Chinese herbal pieces, Chinese patent medicines, antibiotics, biological products, biochemical drugs, radiopharmaceuticals, medical devices, sanitary materials, pharmaceutical machinery, pharmaceutical packaging materials and pharmaceutical commerce. Common chemical pharmaceutical processes such as amino acid drugs, polypeptide and protein drugs, nucleic acid drugs, enzyme drugs, carbohydrate drugs, lipid drugs, vitamins and coenzyme drugs, steroid hormone drugs and the production of interferon by genetically engineered Pseudomonas. Common pharmaceutical equipment includes acidification tank, sludge concentrator and so on, reaction equipment includes reactor, distiller and so on, and refining equipment includes stripper, heating furnace and so on, drying process has a mixer, vacuum dryer, etc., pump valve equipment has a check valve, solenoid valve, gate valve, ball valve, safety valve, butterfly valve, electric stop valve electric safety valve.

Mineral mining refers to the extraction of naturally occurring minerals such as solids (e. g., coal and minerals), liquids (e. g., crude oil), or gases (e. g., natural gas). This category includes underground or above-ground mining, the operation of mines, and all auxiliary work generally performed at or near a mine site for the processing of raw materials, such as grinding, beneficiation and treatment. It also includes the preparations required to enable the raw materials to be sold. However, it does not include the accumulation, purification and distribution of water, as well as geological exploration, construction and engineering activities, and important ways for human beings to obtain important resources. The ore mining process regular has four processes: crushing, screening, smelting and grinding. The process equipment involved include jaw crusher, crusher, cloth sieving machine, cylinder dryer, mixer, quantitative belt feeder, aggregate belt conveyor, powerful mixer, belt electronic scale, buffer tank, roller sieving machine, green ball crusher, swing belt conveyor, roller distributor, etc., pump gate valve, empting valve, water pump, screw pump, lifting pump, high pressure pump, three-way valve, stop valve, butterfly valve, etc.

Light Industry Light industry using agricultural products as raw materials refers to light industry that directly or indirectly uses agricultural products as basic raw materials. It mainly includes food manufacturing, beverage manufacturing, tobacco processing, textile, sewing, leather and fur production, papermaking and printing industries; light industry with non-agricultural products as raw materials refers to light industry with industrial products as raw materials. It mainly includes cultural, educational and sporting goods, chemical manufacturing, synthetic fiber manufacturing, daily chemical products, daily glass products, daily metal products, hand tool manufacturing, medical device manufacturing, cultural and office machinery manufacturing and other industries; covering 18 Major industries. Pump gate valve, ball valve, safety valve, butterfly valve, etc.

Environmental protection engineering refers to the engineering done specifically for environmental protection, which is the treatment of urban solid, gas and liquid pollution. Sewage and garbage treatment are widely used in construction, agriculture, transportation, energy, petrochemical, environmental protection, urban landscape, medical, catering and other fields. Urban sewage treatment process should be based on the treatment scale, water quality characteristics, the environmental function of the receiving water body and the local actual situation and requirements, after a comprehensive technical and economic comparison of the preferred determination. Modern sewage treatment technology, according to the degree of treatment, can be divided into primary, secondary and tertiary treatment. Primary treatment mainly removes solid pollutants in the suspended state of sewage, and most of the physical treatment methods can only complete the requirements of primary treatment. The secondary treatment mainly removes the colloidal and dissolved organic pollutants (BOD,COD) in the sewage, and the removal rate can reach more than 90%, so that the organic pollutants can meet the discharge standard. Tertiary treatment, further treatment of refractory organic matter, nitrogen and phosphorus, which can lead to eutrophication of water bodies, such as soluble inorganic substances. The main methods include biological nitrogen and phosphorus removal, coagulation and sedimentation, sand filtration, activated carbon adsorption, ion exchange and electroosmosis. The common sewage treatment technologies include the separation technology of insoluble pollutants, the biochemical conversion technology of pollutants, the chemical conversion technology of pollutants, and the physical and chemical separation technology of dissolved pollutants. Commonly used pump valve, gate valve, electric gate, steel gate, flashboard gate, pneumatic switch, butterfly valve, check valve, globe valve, trap, vent valve, throttle valve, ball valve, etc.

Electric power devices are divided into thermal power devices, hydropower power devices, nuclear power devices and other energy power generation power devices according to the type of energy. The thermal power plant is composed of boiler, steam turbine and generator (commonly known as the three main engines) and its auxiliary devices. It is composed of combustion system (with boiler as the core), steam-water system (mainly composed of various pumps, feedwater heaters, condensers, pipelines, water-cooled walls, etc.), electrical system (mainly steam turbine generator, main transformer, etc.), control system, etc. The first two produce high temperature and high pressure steam, and the electrical system realizes the transformation from thermal energy, mechanical energy to electrical energy;. The hydropower power device is composed of a water turbine generator set, a governor, an oil pressure device and other auxiliary devices. It uses the potential energy of water to convert the mechanical energy of the water turbine, and then uses the mechanical energy to drive the generator to obtain electricity. Nuclear power plants are composed of nuclear reactors, steam generators, steam turbine generators and other ancillary equipment. Nuclear reactors are divided into thermal neutron reactors and fast neutron reactors according to the neutron energy that causes fission. The pump and valve equipment involved is gate valve, ball valve, safety valve, butterfly valve, etc.

Water conservancy project water resources, urban water affairs, water affairs engineering, ecological water conservancy, port coastal and offshore engineering, agricultural water conservancy, etc. From the national project of the South-to-North Water Diversion to the people's livelihood, it is closely related to the country and individuals. Wherever the water conservancy goes, the pipeline goes first. Pump valves are essential. Water conservancy-related pump and valve equipment includes axial water pumps, centrifugal pumps, vacuum pumps, sewage pumps, water supply pumps, water pumps, submersible pumps, sluices, cast iron gates, plane sliding gates, exhaust valves, pressure reducing valves, Butterfly valves, radial steel gates, air valves, check valves, ball valves, gate valves, etc.