China Shenzhen Wofly Technology Co., Ltd. Company News

The main purpose of the special gases application control system is to provide high-purity electronic special gases for the safe supply of industrial process end-use points. The entire system consists of a number of modules covering the entire flow path from the gas source to the gas manifold to the end-use point.   There are two main requirements for the use of speciality gases in user units. One of the main requirements is to ensure pressure and purity, which is achieved in the speciality gas control system by means of a pressure regulator, and purity by means of a high degree of airtightness of the system to avoid external contamination and filtering of particles in the gas by means of a filter.   The second main requirement is safety, flammable and explosive gases, toxic gases, corrosive gases and other dangerous gases are special gases. Therefore, the special gas system engineering danger is high, in the design, installation and use of operation need to consider the supporting safety facilities.   Today we mainly know, in the special gas application control system has what safety linkage equipment?   01 Emergency stop button   The emergency stop button is used to remotely close the pneumatic valves of the gas supply equipment on site.   When the leakage alarm reaches the second alarm, the staff can carry out remote manual shutdown operation on the gas supply equipment, and close the pneumatic valve of the gas supply equipment in time.   02 Gas Detector The gas detector is mainly used for continuous and uninterrupted sampling and analysis of the gas supply equipment to determine whether there is gas leakage from the gas supply equipment.   When the detector works normally, the sampling flow rate of the detector reaches 500mL/min.   For heated gas, it is necessary to install gas heating unit to achieve auxiliary heating effect.   03 Alarm light Alarm indicator is mainly used to indicate the alarm situation on site, which is composed of alarm light and buzzer.   The alarm indicator is generally a tower-type alarm light. When the leakage alarm reaches one alarm line, the alarm light will be yellow and the buzzer will start; when the leakage alarm reaches two alarm lines, the alarm light will be red and the buzzer will start.   The alarm light requires 24VDC power, and the buzzer needs to sound at 80dB or higher.   04 Sprinkler head Glass ball sprinkler head of the glass ball, filled with a high coefficient of thermal expansion of the organic solution, the fire, the organic solution temperature increases and expansion, until the glass body is broken, the seals lose support by the water flow, so that the beginning of the spray water.   The main role of the shower head in the gas cabinet is to cool down the cylinder to avoid secondary accidents.   05 UV/IR Flame Detector   UV/IR can detect both UV and IR light segments in the flame. When both UV and IR light segments are detected, the detector sends a signal to the control system and triggers the linkage.   Since the flame must contain both UV and IR light segments, the UV/IR detector can effectively avoid false alarms caused by other separate UV or IR sources.   06 Overcurrent protection switch (EFS) The overcurrent protection switch senses abnormal changes in gas flow. When the gas flow rate is greater or less than the set point, the overcurrent protection switch signals the control system and triggers the linkage. The set point of the overcurrent protection switch cannot be adjusted on site.   07 Negative Pressure Gauge / Negative Pressure Switch   Negative pressure gauge/negative pressure can measure the negative pressure value inside the gas cabinet to ensure that the air extraction volume of the equipment meets the design requirements and to improve operational safety.   Negative pressure switch can send a signal to the control system when the negative pressure value in the equipment is lower than the set value, and trigger the linkage.   08 PLC control   PLC control system has a strong reliability, all the signals will be transmitted to the PLC system, after it is processed and transmitted to the human-machine interface, PLC can complete the signal transmission and control of all terminal equipment.

In the core of the pan-semiconductor industry, high-purity process gas systems are like blood, providing a steady stream of nutrients for high-tech industries such as chip manufacturing and optoelectronic displays.   As a system provider focusing on special gas solutions for 13 years, AFKLOK has blossomed in this field with its excellent technological strength and professional service experience.   The soul of a high-purity process gas system   In the pan-semiconductor industry, high-purity process gas systems are a key part of the production process. These speciality gases play a decisive role in IC etching, thin film deposition and other processes, and their purity, stability and continuous supply capability directly affect product quality and yield.   AFKLOK's carefully developed high-purity process gas system, relying on advanced purification technology and strict quality control, ensures that each gas can meet the ultra-high purity standards required by the industry.   Safe guarding, intelligent operation and maintenance   Knowing that safety is the cornerstone of production and the lifeline of any process system, AFKLOK's high-purity process gas systems are designed with safety and stability in mind.   From the storage and distribution of gases at the source to the end-use, the highest safety standards are adhered to. Explosion-proof, fire-proof, leakage detection and alarm systems, such as nitrogen purge systems, emergency shut-off valves, pressure relief devices and flammable/toxic gas detection and alarm systems, are used throughout the process to effectively prevent potential risks from occurring, and to comprehensively safeguard the safety and reliability of the production environment.   In addition, the combination of Internet of Things technology and big data analysis, so as to achieve remote monitoring, intelligent early warning and maintenance management, so that customers can remotely monitor and control the entire process, timely access to information on various parameters, early warning and rapid response to potential problems, so that the entire process is more intelligent and efficient.   Customised services for industrial upgrading In response to the diversified application scenarios and needs of the pan-semiconductor industry, AFKLOK provides customers with tailor-made high-purity process gas system solutions based on its deep technical accumulation and rich project experience. Whether it is a new production line or the upgrading and optimisation of existing equipment, it can be flexibly configured according to the specific requirements of customers, so that each batch of special gas can maintain a constant and compliant with the requirements of the concentration and flow rate, providing a solid guarantee for the continuity of enterprise production. Help enterprises in the fierce market competition to occupy an advantageous position.   Green philosophy, sustainable development   While pursuing excellence in performance, AFKLOK is committed to fulfilling its social responsibility and upholding the principles of environmental protection and sustainability, AFKLOK is committed to creating green and efficient high-purity process gas systems. Our special gas systems are designed and operated in strict accordance with national and international environmental regulations, utilising technology and stringent exhaust gas treatment measures to minimise the impact on the environment and help companies reach their energy saving and emission reduction targets, driving the industry chain towards a more eco-friendly direction.   Together with AFKLOK, we build the future together   AFKLOK has always been on the path of technological innovation and service upgrading, and continues to bring new high-purity process gas system solutions to the pan-semiconductor industry. We are convinced that only by combining the power of science and technology with the needs of our customers can we together draw a beautiful picture of the flourishing development of the pan-semiconductor industry in China and around the world. Choosing AFKLOK is choosing a professional, safe, green and sustainable future! To sum up, AFKLOK has been serving the pan-semiconductor industry with its professional special gas system technology and service level, and actively promoting the progress and development of China's high-purity process gas system. We are looking forward to working with more partners to scale new heights on the road of innovation!   As a manufacturer of special gas control system, we provide overall planning, professional design, material selection, professional installation, system delivery, technical consulting, a complete set of turnkey project. Let the user units with gas more worry, more assured, more at ease.

With the booming development of the semiconductor industry, higher requirements have been put forward for its supporting projects. The supply of special gases has not formed an effective system, and the problems of messy cylinders, chaotic management and mixing of incompatible gases are more serious, which greatly affects the safety of gas consumption. So how to deal with the gas tail gas in the special gas pipeline project? Today the staff of Shenzhen Wofei Technology Co:   Special gas tail gas treatment   Special gases on health and the environment will produce great harm, how to deal with special gas tail gas, with what equipment, here will be an in-depth introduction. Status of speciality gas tail gases   Tail gas inevitably exists as a derivative of the special gas system. In the past, in many colleges and universities, due to the laboratory gas consumption is not large, the owner of the construction unit is not fully aware of the tail gas emission problem, with more semiconductor factories springing up, the production of special gas tail gas emission more and more attention. Then how to discharge, how to discharge has become a problem in front of many users.   The treatment method of the tail gas emission treatment device of the special gas system:   The type of tail gas treatment device should be selected according to the characteristics of the special gas in the exhaust to be treated, and incompatible special gases should be separately set up tail gas treatment device;.   Tail gas treatment device should be arranged close to GR, GC and other special gas equipment.   The tail gas treatment method of special gases shall adopt dry treatment adsorption, wet scrubbing, heating decomposition treatment, combustion treatment, plasma decomposition treatment, dilution treatment and the combination of the above methods.

I don't know if you are familiar with pressure piping, pressure piping from a broad understanding, pressure piping refers to all the pipelines subject to internal or external pressure, regardless of the medium in the pipe. There are many kinds of classification of pressure piping, in order to be able to let you have a more in-depth understanding of pressure piping, the following staff of Wofly technology to introduce how to classify pressure piping by pressure: Pressure piping according to the classification of pressure, pressure piping is divided into low-pressure, medium-pressure, high-pressure, as well as ultra-high-pressure, the following to tell you about these pressure piping according to the pressure classification of the pressure range:　 1. low pressure pipework pressure: 0　　 2. medium pressure pipeline engineering pressure: 1.6　　 3. High-pressure pipeline engineering pressure: 10MPa　　 4, ultra-high pressure pipeline engineering pressure: 10-20MPa.　　 Pressure piping by pressure how to classify the first for you here, pressure piping operations are generally outdoors, laying methods of overhead, along the ground, buried, and even often high altitude, poor environmental conditions, quality control requirements are high. As the quality control link is interlocking, organic combination, a link slightly negligent, resulting in quality problems.

In the process of gas line installation, pressure reducer is to be used in the instrument, its role is to adjust, the inlet pressure will be reduced to a certain need for the export pressure, and rely on the medium’s own energy, so that the export pressure is automatically maintained at a stable valve. Its differential pressure is a certain limit, then the pressure difference of the pressure reducer is too large should be how to solve it, the following Wofei gas line installation manufacturers will be introduced to you. Pressure reducers are rated for leakage at different pressures. General leakage will not exceed 3%, if the pressure difference between the pressure reducer is too large this will result in the pilot valve is automatically top open state, can not ensure that the back end of the pressure stability and accurate control. When this situation occurs, the back-end pressure will lead to the pilot valve diaphragm and the corresponding action of the adjusting spring to frequent automatic corrections, resulting in the pilot valve must be adjusted too often, so the pilot valve is particularly easy to be worn out. 　　Then how to solve it such as working conditions in the normal flow rate of 3000kg / h, the inlet pressure of 15BarG, set the pressure of 3BarG, then solve the problem with the following scheme: differential pressure with two pressure reducing valves in series with the pressure reducing station. The first pressure reducing valve will be DN40, set pressure is set to 8bar, from 15 to 8bar, the flow rate is 3300kg/h, the second pressure reducing valve will be DN50, set to 3bar, the pressure will be reduced from 8 to 3bar, the flow rate is 3030kg/h. 　　Each pressure reducer from the back end of the feedback conduit, copper pipe, the distance to 15 times the diameter of the pipe or 1 metre is appropriate, the pressure gauge is installed in the conduit at the back end of the spacing between the two pressure reducers at least 30 times the diameter of the pipe or more. If the installation location is not enough to require the distance between the two pressure reducing valves, each pressure reducing valve upstream and downstream are required to install a separate shut-off valve. If the above two situations occur at the same time, both large flow changes, and large differential pressure, then the series-parallel combination of pressure reducing station.

Nowadays, the global energy industry is accelerating towards low-carbon, carbon-free and low-pollution development. In order to achieve "carbon neutrality", reducing carbon emissions and increasing forest "carbon sinks" are two important aspects. With industrial development and modernisation, energy demand will continue to surge in the future. Under the premise of safeguarding the overall incremental demand for energy, vigorously promoting the development of zero-carbon emission hydrogen energy, and transforming the structure of the energy cycle from the traditional "carbon cycle" to the "hydrogen cycle" is an important way to achieve the overall goal of carbon neutrality. The transformation of the energy cycle structure from the traditional "carbon cycle" to the "hydrogen cycle" is an important way to achieve the overall goal of carbon neutrality.     "Whoever gets the source gets the world". Hydrogen energy is rich in resources, high in energy density, clean and low-carbon, and sustainable. As a leader in the domestic electronic special gas enterprises, Wofly Technology Company is also working hard on "hydrogen", making full use of the mature and reliable technical capabilities and rich experience to produce more than 100 kinds of industrial gases, including "high-purity hydrogen", and has the responsibility and determination to cooperate with the government and enterprises to promote the clean-up of hydrogen energy. We have the responsibility and determination to do our best in cooperating with the government and enterprises to promote the construction of clean energy and help China build a clean, low-carbon, safe and efficient modern energy system.   The hydrogen energy industry chain mainly includes hydrogen production, storage and transport, hydrogen refuelling and other aspects. Among them, hydrogen storage and transport, as a link between the top and bottom, is a key bridge connecting the hydrogen production side and the demand side, which profoundly affects the rhythm and progress of hydrogen energy development. Wofly Technology has excellent performance and leading advantages in the above fields, and has the advantages of high safety, high efficiency and high reliability in the supply of hydrogen energy, and can provide high standard hydrogen storage and delivery system, and ensure quality, quantity and supply under the premise of ensuring safety, and is committed to building an industrial system of hydrogen energy preparation, purification, storage and transportation of hydrogen energy supply, and constructing a "hydrogen storage - hydrogen transportation - hydrogen refuelling" industrial system, and building a "hydrogen storage - hydrogen transportation - hydrogen refuelling" system. Hydrogen transport - hydrogen" integrated hydrogen infrastructure system, is expected to provide services for China's integrated circuits, display panels, photovoltaic energy, optical fibre cables, lithium batteries, medical and other related fields.     At present, the status of hydrogen energy in China's energy independent strategic system is self-evident, and hydrogen energy will play an important role in China's efforts to achieve carbon neutrality and carbon peak. Therefore, in the future, Wofly technology will firmly green development strategy, hard work, increase R & D efforts, and continue to technological innovation, equipment innovation, service innovation and management innovation, in order to provide the country, the community with green and clean energy, as well as industrial environmental protection pioneers as its own responsibility, in collaboration with multiple partners, to jointly promote the development of hydrogen energy industry and accelerate the application of green hydrogen energy, and to further explore the green hydrogen in the energy, We will further explore the value of green hydrogen in the fields of energy, coal chemical industry, refining and chemical industry, and make our own contribution to the "green low-carbon" and "net-zero emission".

Ⅰ. Role of flame arrestor A flame arrestor is a safety device used to prevent accidents such as fires and explosions. It prevents the flame from spreading or the burning area from expanding by isolating the flame and heat at the potential explosion hazard. Ⅱ. the classification of flame arrestor Flame arresters can be divided into various types according to their construction and use, including: 1. Mechanical flame arrestor: It realizes the role of firestopping through mechanical devices, and will automatically shut down or disconnect the equipment when fire occurs to prevent the fire from expanding. 2. Chemical flame arrestor: to stop the spread of fire through chemical action, by spraying the chemical reaction agent to the burning area to achieve the purpose of extinguishing the fire source or reducing the temperature. 3. Gas type flame arrester: reduce the oxygen content in the burning area by spraying inert gas to achieve the purpose of extinguishing the fire. 4. Water Mist Fire Arrestor: By spraying fine water mist and air mixture, the fire is controlled by cooling and absorbing heat. Ⅲ. does the flame arrestor belong to the valve category? Flame arrestor is generally not categorized as a valve, because it does not control the flow and pressure of fluid medium by opening or closing, but by isolating, cooling, eliminating combustible gases or chemical reactions, etc. to achieve the role of firestopping. In some cases, however, a flame arrestor can also be considered a valve-like device. For example, at the inlet and outlet of a storage tank, a flame arrestor is used to prevent flammable gases from entering or spewing out, in which case the flame arrestor can be regarded as a valve.

Ball valves, diaphragm valves and bellows valves are commonly used in gas pipelines to select the appropriate valve according to the requirements of gas purity, toxicity and flammable explosion. So how to choose the gas line valve in the laboratory gas piping project? Today by the staff of Shenzhen Wofei Technology Co:   Laboratory gas line valve selection criteria   1.Stainless steel ball valve For the purity of less than 99.9999% of the gas pipeline, flange connection can be used 304 stainless steel ball valves. Flange gasket is soft metal gasket, PTFE gasket.   2.Diaphragm valve and bellows valve For gas pipelines with total impurity content ≤10ppm, diaphragm valves and bellows valves should be used. Flammable and explosive gases require bellows valves. The valves are connected by clamping sleeves and are made of soft metal. As the diaphragm valve has the same sealing performance as the bellows valve, it also has outstanding features such as small dead space inside the valve, easy to drain, and small pollution.   3.Diaphragm valve For the total impurity content ≤ lppm purity requirements of the pipeline and risky gas pipeline, it is recommended to use diaphragm valves. Valve and VCR ferrule connection and soft metal washer connection. pO2, ph2, pn2, ar, h, e, n2, cda supply pipe valve is a stainless steel bellows valve, made of the same material as the main pipe.

The project includes high-tech industries such as semiconductors, integrated circuits, flat panel displays, optoelectronics, automobiles, new energy, nano, fiber optics, microelectronics, petrochemicals, biomedicine, various laboratories, research institutes, and standard testing, etc. High purity gas pipeline technology   　　High purity gas piping technology is an important part of the high purity gas supply system and is an important technology for supplying high purity gases to the required supply point. The so-called high-purity gas piping technology includes the correct design of the system, the selection of fittings and accessories, the construction and installation, the testing and ...   　　Types of general gases 　　General gases are categorized in the general gas electronics industry as:General gases, also known as bulk gases:Hydrogen (H2), Nitrogen (N2), Oxygen (O2), Argon (A2) and other special gases (Specialty gases) Mainly Silicon Tetrachloride, Hydrogen Boride, Boron Hexafluoride, Boron Hexafluoride, Boron Hexafluoride, Boron Hexafluoride, Boron Hexafluoride, Boron Hexafluoride, Boron Hexafluoride, Boron Hexafluoride, Boron Hexafluoride, Boron Hexafluoride, Boron Hexafluoride, and Boron Hexafluoride . etc. Types of special gases are usually categorized as corrosive, toxic, flammable, flammable-assisted, inert, and so on.   　　General semiconductor gases are categorized as follows   　　(1) Corrosive/toxic:Hydrochloric acid, BF3, WF6, HBr, silica, NH3, PH3, Cl2, Bcl 3, etc..   　　(ii)Flammability3336H2, CH4, SiH4, PH3, AsH3, SiH2Cl2, B2H6, CH2F2, CH3F, co. and so on.   　　(3) Flammability: O2, Cl2, N2O, NF3...etc.   　　(4) Semiconductor gases, such as noble gases: CF4, C2F6, C4F8, CO2, neon, krypton, helium.... Harmful to the human body.   　　In particular, some gases, such as SiH4, have the property of spontaneous combustion. Once a leak occurs, it will react violently with the oxygen in the air and begin to burn.AsH3 is also toxic. Minor leaks may harm people's lives. Because of these obvious dangers, the safety requirements for system design are particularly high.   　　Electronic special gas piping systems

Nitrogen has no obvious toxic effect, due to tasteless, colorless and odorless, so it can't be detected when the content in the air is high, and it is life-threatening if the oxygen content is lower than 18%. Liquid nitrogen can cause frostbite to eyes, skin and respiratory tract, so what are the safety techniques of nitrogen pipeline? The following Gaitherspark gas pipeline engineering manufacturers will be introduced to you. Fire-fighting measures Hazardous characteristics: Nitrogen itself is not combustible, but nitrogen containers and equipment may explode when exposed to open flames and high temperatures, resulting in a sharp rise in pressure inside the container. Water should be used to cool the container in the fire. Hazardous combustion products: No fire extinguishing methods and extinguishing agents: Use water to cool containers in the fire scene and use extinguishing agents suitable for the fire environment to extinguish the fire.   Emergency Response to Leakage Emergency Response: Cut off the gas source and quickly evacuate the leakage contaminated area. When dealing with the leakage, the handler should wear self-contained positive pressure respirator, and the handler of liquid nitrogen should wear anti-freezing protective gear.   Operation, Disposal and Storage Precautions for Operation and Disposal: Make ventilation equipment. When handling liquid nitrogen, frostbite should be prevented. Precautions for storage: Store in a ventilated warehouse, away from fire and heat source, and the gas cylinder should be protected against dumping. Cryogenic liquid storage tanks larger than 10 cubic meters should not be placed indoors.   Exposure control/individual protection Maximum permissible concentration: no information Monitoring method: chemical analysis or instrumental analysis, engineering control production process closed, strengthen the ventilation of the environment. Respiratory protection: When the concentration in the air exceeds the standard, the site should be evacuated quickly; wear air respirator or oxygen respirator when rescuing or dealing with accidents Eyes protection: Wear a face mask when contacting liquid nitrogen. Body protection: Wear cold-proof clothing in low-temperature working area. Hand protection: Wear cotton gloves in low temperature environment.   Toxicological information Acute poisoning: Nitrogen itself is non-toxic, oxygen content below 18% is life-threatening, hypoxia symptoms of nausea, drowsiness, eyelids and skin turn blue, unconscious until death by asphyxiation.

Market Overview of Global Bulk Specialty Gas System (BSGS) market: According to our latest research, the global Bulk Specialty Gas System (BSGS) market looks promising in the next 5 years. As of 2022, the global Bulk Specialty Gas System (BSGS) market was estimated at USD million, and it’s anticipated to reach USD million in 2028, with a CAGR of Percent during the forecast years. This report covers a research time span from 2018 to 2028, and presents a deep and comprehensive analysis of the global Bulk Specialty Gas System (BSGS) market, with a systematical description of the status quo and trends of the whole market, a close look into the competitive landscape of the major players, and a detailed elaboration on segment markets by type, by application and by region. What are the factors driving the growth of the Bulk Specialty Gas System (BSGS) Market? Semiconductor Photovoltaic LED Other What are the types of Bulk Specialty Gas System (BSGS) available in the Market? Automatic Semi-Automatic Short Description of Bulk Specialty Gas System (BSGS) Market: The report focuses on the Bulk Specialty Gas System (BSGS) Market size, segment size (mainly covering product type, application, and geography), competitor landscape, recent status, and development trends. Furthermore, the report provides detailed cost analysis, supply chain. Technological innovation and advancement will further optimize the performance of the product, making it more widely used in downstream applications. Moreover, Consumer behaviour analysis and market dynamics (drivers, restraints, opportunities) provides crucial information for knowing the Bulk Specialty Gas System (BSGS) Market. Get a Sample Copy of Bulk Specialty Gas System (BSGS) Market Report Five Forces and Pestle analysis: To better understand the market situation, a five-force analysis is conducted, including buyer bargaining power, supplier bargaining power, threat of new entrants, threat of substitutes, and threat of competition. Politics (political policy and stability, trade, finance, tax system) Economics (interest rates, employment or unemployment rates, commodity costs, exchange rates) Social (family demographics, education level, changing cultural trends, changing attitudes, changing lifestyle) technology (digital or mobile technology changes, automation, research and development) Law (labour law, consumer law, health and safety, international and trade regulations and restrictions) Environmental (climate, recycling processes, carbon footprint, waste management, sustainability) Regional Segmentation: North America (United States, Canada and Mexico) Europe (Germany, UK, France, Italy, Russia and Turkey etc.) Asia-Pacific (China, Japan, Korea, India, Australia, Indonesia, Thailand, Philippines, Malaysia and Vietnam) South America (Brazil, Argentina, Columbia etc.) Middle East and Africa (Saudi Arabia, UAE, Egypt, Nigeria and South Africa) Bulk Specialty Gas System (BSGS) Market: Drivers and Restraints: The report provides valuable information on the production costs, supply chain dynamics, and raw materials that are essential to the Bulk Specialty Gas System (BSGS) Market. It also analyses the impact of COVID-19 on the industry and provides recommendations on how businesses can adapt to the changing market conditions. The report identifies key market restraints, such as economic constraints in emerging countries and business market obstacles. By understanding these risks and challenges, businesses can develop strategies to mitigate them and achieve long-term success in this exciting and dynamic industry. Bulk Specialty Gas System (BSGS) Market Report Highlights: A comprehensive look at the Bulk Specialty Gas System (BSGS) Industry Changing Bulk Specialty Gas System (BSGS) Market trends in the global industry Historical and forecast size of the Bulk Specialty Gas System (BSGS) Market in terms of Revenue (USD Million) Detailed market segmentation analysis at a various level such as type, application, end-user, and regions Current Bulk Specialty Gas System (BSGS) industry growth and market trends Key player analysis and Competitive Landscape analysis for the Bulk Specialty Gas System (BSGS) Market Key Product presents by Major Players and business strategies used Key challenges encountered by operating players in the market space

Just yesterday the customer under the 10 sets of auxiliary gas panel inlet pressure of 1000psi, outlet pressure of 150psi for a single meter pressure of 0-200psi, for nitrogen auxiliary gas panel, has been produced and shipped, this auxiliary gas panel without emptying, cleaning function. Mainly used in gas pipeline terminals, easy to use to control the size of the gas flow, its maximum output pressure can reach 20.7MPa (3000psi), with corrosion-resistant properties, clean room assembly test, suitable for laboratory gas analysis and other high-purity gases. This is a customer made model, the final inlet connection and outlet connection is 1/4 inch female NPT, which is a double ball valve model. In addition, we also do single ball valves and diaphragm valves, etc. The following are some of the styles we have done. And we have done not only so many styles, there are different styles because of the delivery time did not have time to take pictures to record.   Not only that, we can also do customised styles, can provide you with your design drawings, we can also help you to design the styles you want, these can be met. Of course, not only 10 auxiliary gas panels, he also has high-pressure hoses, according to his needs with cylinder fittings and double male threaded fittings, these two fittings on one side with one, there are 10 flame arrestors and so on.