China Shenzhen Wofly Technology Co., Ltd. Company News

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.

The 3-day exhibition from 6th to 8th March in Sands Cove, Singapore has started, our booth is located at #FL28, welcome to visit us. I would like to introduce Wofly's brand AFKLOK and its main products, AFKLOK's main products are as follows: Pressure Regulators, Ultra High Purity Pressure Regulators, Panel Pressure Regulators, Diaphragm Valves, Speciality Gas Cabinets and Racks, Fittings & Valves, etc. Wofly's products range from self-manufacturing to self-selling and even undertaking projects. Wofly's products from self-production to self-sale and even undertake projects, and the reason why we can take the project, it all comes from wofly's design team because of them we have the bottom of the project. I have to say that wofly is also well known in China for doing projects, so it is accurate to say that we can provide high-quality gas system solutions. This is what sets wofly apart from the rest. The above is all, if wofly's products are suitable for you, why not go to Sands Cove Singapore #FL28 we will give you face to face answer. 6th to 8th March waiting for you to visit. https://exhibitors.asiaphotonicsexpo.com/jtycn/zsen338.html

We are one week away from the inaugural APE (Asia Photonics Expo). Get ready for an unparalleled journey into the world of photonics at the Asia Photonics Expo, taking place from 6 – 8 March 2024 at Marina Bay Sands, Singapore. The exhibition is an area of exciting technologies, innovations and applications in the fields of optics, lasers, photonics, photonics, sensors, metrology, materials, semiconductors and more. With the ambition to become the world's leading holistic photonics platform for business connection, APE focuses on showcasing the latest cutting-edge technologies for the emerging application markets in Asia and the world. The goal is to promote in-depth communication and foster business collaboration between professionals in the whole supply chain of the photonics industry. We are at booth FL-28, Shenzhen Wofei Technology Co., Ltd, exhibiting bulk gas supply units, diaphragm valves, pressure regulators, connectors and fittings, and so on. https://exhibitors.asiaphotonicsexpo.com/jtycn/zsen338.html https://www.szwofly.com/supplier-328778-stainless-steel-pressure-regulator

A flow meter is a device used to measure the volume or mass of a gas or liquid. You may have heard a flow meter be referred to by many different names such as; flow gauge, liquid meter and flow rate sensor. This can be depending on the industry they are used in. However, the most important element of flow meters is the accuracy of their measurements.   Inaccurate flow measurement can have a number of adverse effects such as;   Poor flow and related controls Bad quality products Incorrect fiscal and allocation measurement Creating an unsafe environment for workers. Can create flow disturbances   What can cause inaccurate flow meter measurements?     A change in process conditions. A change in temperature, pressure, viscosity, flow rates and fluids can cause inaccurate flow measurements. For example, in gas flow measurement a change in temperature can change the density of the gas which as a result can lead to an inaccurate reading.   Choosing the wrong flow meter Wrong flowmeter selection is one of the major causes of inaccurate flow measurement.There is no “one size fits all” when it comes to choosing a flow meter. It is really important to take into account a few considerations before choosing a flow meter. Choosing the wrong flow meter can result in a huge cost in the amount of production time lost.   Placing price at the top of your criteria That bargain flow meter can quickly turn into a costly nightmare. Be aware of relying on cost and popularity when it comes to choosing your flow meter. If you choose the “cheapest option” it will be easier to get the wrong flow meter which does not suit your requirements physically or performance-wise.   How can you improve the accuracy of your flow meter?   Here’s a tip from a Siemens flow specialist that may help you with the accuracy of your flow meter. When discussing the sizing of magnetic flow meters to the application, there are two rules to follow: Rule number one: Never size the meter to the pipe. Always size it to the flow rates. Rule number two: Refer back to rule number one. For example, a recent customer complained about the accuracy of his magnetic flow meter. After we investigated this it turned out that the meters installed were oversized for the flow rates. This meant that the sensors reading were at the very bottom of the operating scale. The first step is to understand the right way to size a meter. A good rule of thumb is to size the meter so the average flow is around 15 to 25% of the maximum flow capacity of the meter.   Here is an example…   A meter has a maximum flow rate of 4000 GPM, the average flow should not be less than 500 to 1000 GPM. This flow rate will maintain sufficient velocity through the meter, giving the customer room for expansion. Many installations are designed for expansion in the future, so large size pipes are installed to accommodate for this. In this case, you must look at the minimum flow expected. You must ensure that the average flow should never fall below 2 ft/s or in this case 300 GPM If it is not possible to reduce the overall size of the pipe to accommodate the proper size flow meter, you should install a reducer in the line. This should be located about 3 diameters upstream of the flow meter. You can then install an expander downstream and return to the original pipe size. This process will prevent inaccurate flow measurement and still allows you to remove the small meter in the future if needed. We stock a comprehensive range of flow meters to suit all media, including Clamp On, Coriolis Mass, Electromagnetic, Liquid, Mass, Paddle Wheel, Positive Displacement, Ultrasonic, Variable Area and models.

It can often seem a bit of a minefield when it comes to maintaining safety and efficiency in an industrial environment. However, pressure relief valves are the unsung heroes of this area. These valves prevent overpressure situations and play a vital role in protecting equipment. However, it is not uncommon for a common question to arise: how often should pressure relief valves be tested and replaced in the UK? At Fluid Controls, we thought we'd collate this useful article to answer this common FAQ in more detail. As a distributor of pressure control products, we know and understand the importance of striking the right balance between compliance, safety and cost-effectiveness, so read on and let us impart our wisdom on you!   What role do pressure relief valves play?   Within industries, pressure relief valves are considered to be guardians of pressure-sensitive systems. They are commonly found in a wide range of processes and equipment, from boilers and pressure vessels to pipelines and hydraulic systems. Pressure relief valves automatically release excess pressure to ensure that the internal pressure within the system remains within safe limits. Through this release of pressure, they prevent disastrous failures, explosions, and other hazardous situations that could potentially lead to injury, damage to property, and/or environmental harm.   The importance of regular checks   Just as the tires on your car require regular checks to ensure they are inflated to the right level and have a decent amount of road grip, pressure relief valves require frequent checks to ensure they are functioning correctly when the pressure’s on. Regular checks serve several important purposes: Ensuring safety: Testing pressure relief valves on a regular basis provides the assurance that these valves are ready to perform their critical task when needed. It’s like having a fire extinguisher that you know will work in the event of a fire. Regulation compliances: In the UK, industrial safety regulations set standards for the maintenance and testing of pressure relief valves. Adhering to these regulations not only keeps your facility compliant but also demonstrates your commitment to safety. Preventing downtime: A malfunctioning pressure relief valve can lead to equipment breakdowns and unplanned downtime. Regular testing helps identify issues before they escalate, minimising disruptions to operations.   How often should pressure relief valves be tested?   The frequency of pressure relief valve testing depends on a few factors and are often tailored to your specific application. The key considerations are: Manufacturer recommendations: As with any equipment, the manufacturer of your pressure relief valve will provide guidelines for testing. These recommendations are rooted in the valve’s design, intended usage, and expected wear and tear. Industry regulations: Different industries may have distinct requirements. For example, the Health and Safety Executive (HSE) in the UK provides guidelines for specific sectors. It’s crucial to stay informed about the latest regulations that relate to your industry. Risk assessment: Conducting a risk assessment helps you understand the potential consequences of a valve failure. A valve in a high-risk scenario might need more frequent testing compared to a lower-risk situation. Operational history: If a valve has demonstrated recurrent problems in the past, more frequent testing could be necessary. Think of it as a valve’s health checkup or MOT. How Often Do Pressure Relief Valves Need to Be Replaced?   While testing extends the life of your pressure relief valve, like all things, these valves have a certain lifespan. Replacement times are influenced by factors such as: Manufacturer recommendations: Just as a car’s mileage guides oil changes, the manufacturer’s guidelines for valve replacement intervals provide a roadmap for ensuring continued reliability. Deterioration over time: Over time, the materials in pressure relief valves can degrade due to environmental factors, operational stress, and wear. Regular testing can help determine when a valve’s performance is no longer within acceptable limits. Advancements in technology: As technology advances, newer pressure relief valves may offer enhanced safety features and improved efficiency. Considering an upgrade could be a sensible decision to stay ahead in terms of safety and compliance. How often should pressure relief valves be tested and replaced?   As a general rule of thumb, we’d say that pressure relief valves should be tested every 12 months and replacements should take place every 3 to 5 years.   Pressure relief valves from Fluid Controls   We hope this article on testing and replacing pressure relief valves has helped you to better understand the citation and given you some good insights. So, when it comes to the question of how often should pressure relief valves be tested and replaced in the UK, we’d always say as often as necessary to uphold the highest standards of safety and operational excellence. Here at Fluid Controls, we offer relief valves, pressure regulators, and many other valve types for maximum efficiency in your application. We also stock a wide range of flow control and measurement components gauges and sensors. If you’d like to speak to a qualified expert about the product range at Fluid Controls, don’t hesitate to contact us today.

Valves are small components with big responsibilities. They are linchpins that keep industrial, commercial and residential operations running smoothly and safely in manufacturing, heating, and many other types of systems. Among the various types of valves available, safety valves and relief valves are two of the most important. While they may appear similar at first glance, they have distinct functions, applications, and mechanisms of operation. Understanding the difference between safety valves and relief valves is crucial for ensuring the optimal performance and safety of your systems. Whether you are involved in chemical processing, water treatment, or any other industry that relies on controlled pressure, choosing the right valve is important for both the safety and the efficiency of your system. Let’s discover the difference between a pressure relief valve and a pressure safety valve so you can work out which is right for you.   What Is A Safety Relief Valve?   A safety valve serves as the guardian of a pressurised system, designed to automatically release the pressure created by a gas, steam, or liquid when the pressure within reaches its limit. They are always alert, ready to act the moment things go awry. The primary role of a safety valve is to protect your system from the potentially catastrophic effects of overpressure, which could lead to equipment damage or, worse, safety hazards for personnel. The mechanism within a safety valve is straightforward but effective. It is calibrated to open fully and rapidly divert the flow of the over-pressurised liquid or gas to a safer location, often the surrounding atmosphere. Once the pressure returns to acceptable levels, the valve closes, allowing the system to resume normal operations. This rapid, full-opening action is one of the defining characteristics of a safety valve and sets it apart from other types of valves. Safety valves are commonly found in high-pressure systems such as steam boilers, gas cylinders, and chemical plants. Their role is not just preventive; it’s pivotal for maintaining the integrity and safety of your entire operation.   What Is A Relief Valve?   A relief valve is another critical component in the management of a system’s pressure, but it operates differently from a safety valve. While both types aim to alleviate excessive pressure, a relief valve does so in a more controlled manner. Unlike the rapid, full-opening action of a safety valve, a relief valve opens gradually, allowing a proportional amount of the over-pressurised gas or liquid to escape. This approach makes relief valves ideal for systems where pressure fluctuations are more frequent but less severe. The relief valve is designed to open incrementally as the pressure rises, releasing just enough of the substance to bring the system back to its safe operating level. Once the pressure has been stabilised, the valve closes. This ensures minimal disruption to operations. This variable flow control is a defining feature of relief valves and distinguishes them from their safety valve counterparts. Common applications for relief valves include hydraulic systems, water heating systems, and air compressors. Their role is vital in maintaining the balance of your system, making sure that it operates safely and efficiently.   What Are The Key Differences?   At this point, you might be wondering what is the difference between a pressure relief valve and a pressure safety valve when both serve a similar purpose. While they share the same goal of maintaining safety and operational efficiency, their mechanisms and applications set them apart in distinct ways. One of the most noticeable differences is the opening mechanism, but another key distinction lies in their applications. Safety valves are typically used in high-pressure systems where rapid pressure relief is needed to prevent catastrophic failure. Relief valves, on the other hand, are more suited for low to medium-pressure systems where pressure variations are frequent but not extreme. The flow control in each type of valve varies too. Safety valves operate at a fixed flow rate, meaning they open fully or not at all. Relief valves offer variable flow control, allowing for a more nuanced approach to pressure management. Understanding these key differences can help you make the right choice for your application while ensuring that your system operates safely and efficiently.   What Are Their Similarities?   While safety valves and relief valves have their unique characteristics and applications, they also share some common ground that is worth noting. Both types of valves serve the fundamental purpose of protecting your system from the dangers of overpressure. Whether working with high-pressure steam or hydraulic fluid, these valves act as safeguards to prevent equipment damage and maintain a safe working environment. Another shared feature is their construction. Both valves are often made from similar materials like stainless steel or brass, designed to withstand industrial use. Their construction helps to ensure their long-lasting performance and reliability, making them indispensable components in a pressure control strategy. Both valves are equipped with a set point, a predetermined pressure level at which they activate. This set point is adjustable, allowing the valve’s performance to be tailored to the specific requirements of a system. Despite their differences, the core function of safety and relief valves is the same; to maintain a safe and efficient operating environment. Recognising these similarities can help you appreciate the roles each valve plays in a pressure management system. Selecting the right valve isn’t just about ticking a box; it’s about making an informed decision that aligns with the specific needs and challenges of your system. Whether you are dealing with high-pressure environments or systems with frequent but moderate pressure fluctuations, the choice between a safety valve and a relief valve is a critical one. Both types of valves are indispensable, each offering unique advantages depending on your system’s requirements. When looking at safety vs relief valves, remember that including either or both of them in your system protects your equipment and also contributes to a safer and more efficient working environment.

The use of gases in the semiconductor industry dates back to the early 1950's to 1960's. During the semiconductor manufacturing process, gases are mainly used to clean and protect semiconductor materials to ensure their purity and quality. Among the most commonly used gases are nitrogen and hydrogen. As semiconductor technology developed and manufacturing processes continued to improve, the demand for gases increased. In 1970, further development of semiconductor manufacturing technology, the application of gases in key processes such as etching and deposition of thin films gradually increased, and fluoride gases (e.g. SF6) and oxygen became commonly used etching and deposition gases. 1980 saw a further increase in the demand for gases with the development of integrated circuits and the increase in demand for them. Hydrogen was widely used in the manufacturing process, including hydrogen annealing and hydrogen vapour deposition. And from 1990 to the present, the demand for high-purity gases and specific gases has increased as semiconductor device sizes have continued to shrink and new processes have been introduced. For example, the application of extreme ultraviolet lithography (EUV) requires the use of extremely high-purity gases such as nitrogen and hydrogen. Semiconductor gas continues to increase with the development of related products driven by more and more products are revealed, while the gas also belongs to the source of danger, so the products used for gas decompression, gas detection products and prevent gas leakage products have emerged such as pressure regulators, gas valves, gas pressure gauges, gas leakage detector, etc., and their roles are as follows: Pressure regulators: Pressure regulators are devices used to control gas pressure. They usually consist of a regulator valve and a pressure sensor. Pressure regulators take a high pressure gas input and stabilise the pressure of the output gas by adjusting the valve to meet specific application requirements. Pressure regulators are widely used in areas such as industry, manufacturing and laboratories, as well as in the semiconductor industry, among others, to ensure the stability and safety of the gas supply. Gas Valves: Gas valves are used to control the flow of gases and to close gas passages. They usually have an on/off function that opens or closes the gas flow. There are various types of gas valves, including manual valves, electric valves and pneumatic valves. They are widely used in gas systems to control the flow, pressure and flow rate of gases. Gas Pressure Gauges: Gas pressure gauges are used to measure the pressure level of a gas. They are usually installed at critical locations in gas systems to monitor pressure changes and ensure that they are within safe limits. Gas pressure gauges are widely used in industry, manufacturing and laboratories, and the semiconductor industry has also been involved. Gas Leak Detectors: Gas leak detectors are used to detect leaks in gas systems. They detect the presence of gas leaks and sound an alarm so that timely action can be taken to prevent leakage accidents. Gas Leak Detectors are widely used in industrial, chemical, oil and gas applications, and the semiconductor industry has also been involved.