China Shenzhen Wofly Technology Co., Ltd. Company News

In industrial, medical and laboratory gas systems, CGA (Compressed Gas Association) series cylinder couplings are a key component to ensure the safe delivery of gases. However, with so many models and sizes available, many users are faced with the challenge of selecting the correct type. This article provides a comprehensive guide to the CGA range of cylinder couplings, helping you to select the most suitable product with ease. I. Introduction of CGA Series Cylinder Connector The CGA series of cylinder couplings is a standardised system of couplings developed by the Compressed Gas Association of the United States and is widely used for the connection of gas cylinders. Each CGA model corresponds to a specific gas type and application scenario, ensuring safety, compatibility and efficiency.   II.Key Factors in Selecting CGA Series Cylinder Connectors   1. Types of gases Inert gases: such as argon (Ar), nitrogen (N₂), helium (He), etc., commonly used CGA580, CGA320 and other models. Flammable gases: such as hydrogen (H₂), acetylene (C₂H₂), etc., commonly used CGA350, CGA510 and other models. Corrosive gases: such as chlorine (Cl₂), ammonia (NH₃), etc., need to choose corrosion-resistant materials (such as stainless steel) connectors. Medical gases: such as oxygen (O₂), laughing gas (N₂O), etc., commonly used CGA540, CGA870 and other models.   2. Application Scenario Industrial gases: choose high-pressure resistant and durable connectors, such as CGA580, CGA660. Medical gases: choose the connectors that meet the medical standard, such as CGA540, CGA870. Laboratory gases: choose high-purity, corrosion-resistant fittings, such as CGA320, CGA590.   3. Material selection Brass: suitable for most non-corrosive gases, lower cost. Nickel-plated brass: improve corrosion resistance and wear resistance, suitable for moderately corrosive environments. Stainless steel: suitable for strong corrosive gases and high purity gases, with higher strength and durability.   4. Working pressure Select the appropriate fitting according to the working pressure of the gas system. For example, high pressure gas system (such as hydrogen) need to choose high pressure resistant design fittings.     5. Seal type Flat seal: Suitable for most gases, sealing is achieved by gaskets or O-rings. Conical seal: Suitable for high pressure gases, better sealing performance.   III. Common CGA models and their applicable gases CGA Models Applicable Gases Typical Application Scenarios CGA320 Argon, Nitrogen, Helium Industrial gases, laboratory gases CGA350 Hydrogen Industrial gases, energy sector CGA540 Oxygen Medical gases CGA580 Oxygen, nitrogen, argon Industrial gases, medical gases CGA590 Oxygen Medical gases CGA660 Argon, Carbon Dioxide Welding Gases CGA870 Laughing gas (N₂O) Medical gases   IV. Selection Precautions Compliance with standards: Make sure the selected connector meets CGA standards to ensure safety and compatibility. Customised requirements: If there are special requirements (e.g. non-standard rod length, special materials), you can communicate with the supplier for customisation. Testing and certification: Choose products that have undergone rigorous testing and certification to ensure reliable performance. Supplier support: Choose suppliers with technical support and after-sales service in order to solve problems in use.   V. Successful Case Sharing A laboratory needed to select CGA fittings for a high-purity hydrogen system, and finally chose CGA350 stainless steel fittings with a 9cm rod length. The coupling not only meets the requirements of high purity gas, but also passes the strict leakage test and pressure test to ensure the safety and reliability of the system.   VI. Conclusion Correct selection of CGA series cylinder couplings is the key to ensure the safe and efficient operation of gas systems. By understanding factors such as gas type, application scenario, material selection and working pressure, you can easily select the most suitable connector. For further technical support or customised service, please contact us for further assistance.   About Us As a professional supplier of CGA series cylinder couplings, we offer a wide range of models and customised services to meet the needs of different customers. Our products comply with CGA standards and undergo rigorous testing to ensure safety and reliability. Welcome to contact us for more product information and technical support!   Contact Information Tel：0755 0927 0234 43 Email: info@szwofly.com Official website: https://www.woflyvalve.com

Recently, with the growing demand for industrial automation and household equipment, pressure regulators, as a key control element, have attracted much attention for their selection. Especially for novices, in the face of a wide range of pressure regulator products on the market, how to choose the right model has become a major problem. To this end, we interviewed a number of industry experts, collated a detailed selection guide to help newcomers easily handle the selection of pressure regulators.   Pressure regulator selection of key factors   1. Clear pressure range According to experts, the first task of selection is to clarify the operating pressure range of the system. Newcomers need to understand the inlet and outlet pressure requirements to ensure that the selected regulator can meet the pressure needs of the system. 2. Flow requirements should not be ignored Flow rate is an important parameter in the selection. Beginners should choose the regulator according to the maximum flow requirements of the system, to avoid insufficient flow resulting in the system can not operate normally. 3. The type of medium determines the choice of material Different media (gas or liquid) have different material requirements for regulators. For corrosive media, experts recommend choosing stainless steel and other corrosion-resistant materials to ensure the long-term stable operation of the equipment. 4. Precision and temperature range For application scenarios with high precision requirements, novices should choose regulators with high control accuracy. At the same time, the operating temperature range is also an important factor to consider when selecting the regulator to ensure that the regulator can operate normally under the operating temperature of the system. 5. Ease of installation and maintenance Experts emphasise that novices should prioritise ease of installation and maintenance when choosing a pressure regulator. Selection of products that are easy to install and maintain can greatly reduce the cost of later use. Selection steps are simplified, the novice can also easily get started   In order to help novices to better complete the selection, experts summarised a set of simplified selection steps:   1. Determine the needs: clear pressure, flow, medium and other basic parameters. 2. Screening products: according to demand from the market to screen out products that meet the conditions. 3. Comparison of performance: compare the performance of different products, materials and prices, choose the most cost-effective products. 4. Select brand: give preference to reputable brands to ensure product quality and after-sales service. (AFKLOK is a good choice) 5. Confirmation of installation and maintenance: Ensure that the selected product is easy to install and maintain, to reduce the trouble in the later use.   Industry trends: intelligent and high-precision into the mainstream   With the continuous progress of technology, pressure regulators are moving towards the direction of intelligence and high precision. Experts predict that in the next few years, intelligent pressure regulators with remote monitoring and automatic adjustment functions will become the mainstream of the market. For novices, it is also a wise choice to understand the industry trends and choose products that meet future development needs.   Conclusion   Pressure regulator selection is not complicated, as long as you master the key factors and selection steps, novices can easily handle. We hope that through the guidance in this article, the majority of users can choose the right pressure regulator for their needs, for the stable operation of the system.

With the acceleration of globalisation, the market demand for pressure regulators as key equipment in industrial automation is becoming increasingly diverse. Customers in different countries and regions have different focuses and concerns when choosing pressure regulators. In this article, we will start from the needs of customers in Europe, America, Asia and other regions, and analyse their core concerns and common problems when choosing pressure regulators. European and American Customers: Focus on Quality, Compliance and Intelligence Customers in Europe and the United States, especially from Germany, the United States, the United Kingdom and other developed industrial countries, usually pay more attention to the following aspects when choosing pressure regulators:   1. Product quality and reliability European and American customers have very high requirements for product durability, precision and stability, especially in high-risk industries such as oil and gas, chemical and other high-risk industries, the reliability of the pressure regulator is directly related to production safety. They tend to choose branded products that have undergone rigorous testing and certification. 2. Compliance and Certification The European and American markets have very strict compliance requirements for industrial equipment. Customers usually require pressure regulators to comply with local or international standards, such as CE certification (European Union) and ASME (American Society of Mechanical Engineers). Environmental requirements are also in focus. Customers will focus on whether the equipment complies with RoHS, REACH and other environmental regulations. 3. Intelligence and Digitalisation With the advancement of Industry 4.0, customers in Europe and the United States are more inclined to choose intelligent pressure regulators that support Internet of Things (IoT) functions, enabling remote monitoring, data collection and automation control. The integrability of the device (e.g. compatibility with PLC and SCADA systems) is also an important consideration. 4. After-sales service and technical support European and American customers place a high value on a supplier's after-sales service capabilities, including technical support, spare parts supply and maintenance response time.   Points of concern: Does the equipment comply with local regulations and industry standards? Is it reliable for long-term stable operation? Does it support intelligent features for future upgrades? Customers in Asia: Price/performance and fitness for purpose are critical Customers in Asian markets (e.g. China, India, Southeast Asia, etc.) often focus on price/performance and suitability when choosing a pressure regulator:   1. Price and cost-effectiveness Asian customers are more sensitive to price, especially in the manufacturing industry and small and medium-sized enterprises, they tend to choose cost-effective products. But at the same time, customers are also concerned about the product's service life and maintenance costs to ensure that it is economical to use in the long term. 2. Suitability and customisation Customers in Asia are more concerned about the ability of pressure regulators to meet their specific operating requirements, such as high temperatures, high pressures or corrosive environments. Customisation (e.g. special materials, sizes or functions) is an important factor in attracting Asian customers. 3. Lead times and supply chain stability Asian customers often have high demands on lead times, especially in fast-moving manufacturing industries where supply chain stability is key. They also pay attention to the production capacity and inventory of their suppliers. 4. Localised support Asian customers prefer suppliers who can provide localised services, including local technical support, after-sales service and spare parts supply. Points of concern: Is the equipment competitively priced? Can it be delivered quickly and meet customised requirements? Can the supplier provide localised support?   Middle East and Africa customers: Durability and adaptability a priority When choosing a pressure regulator, customers in the Middle East and Africa region are often more interested in the durability and adaptability of the equipment, as evidenced by:   1. High temperature and corrosion resistance In the Middle East, where the climate is hot and the oil and gas industry is well developed, customers are more concerned about whether the pressure regulator can operate stably in high temperature, high humidity or corrosive environments. Some parts of Africa have poor infrastructure, the equipment needs to have strong environmental adaptability.   2. Easy maintenance and operation Due to the lack of skilled personnel in some regions, customers prefer pressure regulators that are simple and easy to maintain and operate. The modular design of the equipment (easy to remove and replace parts) is also an important consideration.   3. Price and long-term costs Customers in the Middle East and Africa are also price-sensitive, but are more concerned with the long-term cost of the equipment, including energy consumption, maintenance costs and longevity.   4. Supplier Reliability Customers are more inclined to choose suppliers with good reputation and long-term cooperation experience to ensure stable supply of equipment and after-sales service.   Points of concern: Is the equipment able to adapt to extreme environments? Is it easy to maintain and operate? Is the supplier reliable and able to provide long-term support?   Summary Customers in different regions focus on different points of concern when choosing a pressure regulator: European and American customers: focus on quality, compliance, intelligence and after-sales service. Customers in Asia: price/performance ratio, suitability, lead time and localised support. Customers in the Middle East and Africa prioritise durability, ease of maintenance and supplier reliability.   For pressure regulator manufacturers and suppliers, understanding the differences in customer needs across different regions and providing tailored products and services is the key to winning in international markets.

An auxiliary gas rack is a device used to support and secure gas cylinders, usually in conjunction with a cylinder cabinet or gas management system, designed to improve the safety, convenience and efficiency of gas storage and use. The following is a detailed introduction about auxiliary gas holder: I. Main functions of auxiliary gas rack Fixing gas cylinders: Preventing gas cylinders from tipping or rolling and reducing accidents. Firmly fix the cylinders on the air rack by chains, straps or brackets. Improve space utilisation: Supports multi-tier design, can store multiple cylinders at the same time, saving space. Suitable for places with a large number of cylinders (e.g. laboratories, factories). Easy to manage: Provides clear categorisation and labelling of gas cylinders for quick access. Can be integrated with gas management systems to monitor and record gas usage. Enhanced safety: Prevents gas cylinders from collision or friction, reducing the risk of leakage. Suitable for storage of flammable, explosive or toxic gases.   II. Structure and design of auxiliary gas frame 1. Main frame Material: Usually made of high-strength steel or stainless steel, which is corrosion-resistant and pressure-resistant. Design: the frame structure is solid, able to withstand the weight of the gas cylinder and external impact.   2. Fixing device Chains or straps: used to fix the cylinders on the frame to prevent tipping. Brackets or clamps: support the bottom of the cylinder to ensure that the cylinder is placed in an upright position.   3. Layered design Single tier rack: suitable for storing a small number of cylinders. Multi-tier rack: supports vertical stacking of multiple cylinders to save space.   4. Mobile function (optional) Wheeled Air Rack: Universal wheels are installed at the bottom for easy movement and repositioning. Fixed air rack: fixed on the ground or wall by bolts to increase stability. III. Classification of auxiliary air frame 1. Classification according to function Fixed air rack: suitable for long-term storage of gas cylinders. Mobile air racks: suitable for places where gas cylinders need to be moved frequently.   2. Classified by cylinder type General-purpose racks: suitable for standard-sized cylinders. Specialised racks: designed for specific types or sizes of cylinders (e.g. small laboratory cylinders).   3. Classified according to the use of the scene Laboratory Gas Racks: small size, suitable for laboratory use. Industrial gas holder: larger size, suitable for factory or workshop use.   IV. Selection guide of auxiliary gas rack Number of cylinders: choose single or multi-layer air racks according to the number of cylinders. Cylinder size: Make sure the size of the rack matches with the cylinders, avoid too big or too small. Mobility requirements: If you need to move the cylinders frequently, choose a rack with wheels. Safety requirements: Choose the appropriate fixtures and materials according to the nature of the stored gas. Space limitation: choose the suitable size of gas rack according to the space size of the storage place. V. Use and Maintenance of Auxiliary Gas Rack 1. Precautions for use Cylinders should be placed upright and firmly fixed with fixing devices. Gases of different nature should be stored separately to avoid mixing. Regularly check whether the fixing device is intact and replace the damaged parts in time.   2. Maintenance Clean the gas rack regularly to prevent dust or debris from accumulating. Check whether the structure of the gas holder is stable and repair the loose or damaged parts in time. For air frame with wheels, check the flexibility and stability of the wheels regularly. Ⅵ. the application scene of auxiliary gas rack Laboratory: for storing experimental gases (such as hydrogen, nitrogen, oxygen, etc.). Industrial production: for storing welding gases (such as acetylene, argon, etc.) or process gases. Medical facilities: for storing medical oxygen, nitrogen, etc. Scientific research institutions: for storing high-purity gases or special gases.   VII. Safety Standards of Auxiliary Gas Racks International standard: OSHA (U.S. Occupational Safety and Health Administration): stipulates the safety requirements for the fixing and storage of gas cylinders. NFPA (National Fire Protection Association of the United States): fire protection requirements involving the storage of gas cylinders. Domestic standards: GB 50177: Hydrogen Station Design Code, which deals with the fixing requirements for hydrogen gas cylinders. GB 15603: General Rules for the Storage of Dangerous Chemicals, which applies to the storage management of gas cylinders.   VIII. Summary Auxiliary gas rack is an important equipment for gas storage and management, which can effectively improve the safety and convenience of gas storage. Through reasonable selection, correct use and regular maintenance, it can minimise the risk of gas storage and guarantee the safety of personnel and environment. If you have more needs or questions about auxiliary gas racks, please feel free to enquire!

The maximum input and output pressures of the R11 series pressure regulator are as follows: Max Inlet Pressure : 600psig, 3500psig Outlet Pressure Range : 0~30, 0~60, 0~100, 0~150, 0~250, 0~500psig Pressure and low pressure on the inlet side are also two flow values Flow Coefficient (Cv): 3500psig Inltet : Cv=0.09 600psig Inltet : Cv=0.20 Maximum inlet pressure refers to the maximum pressure of the valve body itself, usually the inlet end pressure gauge we will choose more than the pressure of the valve body, the highest pressure gauge pressure is generally in the 6000psi, the same reason for the outlet port, according to the pressure of the valve body outlet end configuration pressure gauge. These are some examples of pressure ranges for the four-hole R11 pressure regulator, and we have hundreds of pressure ranges in total for the R11 series.

There are a total of three types of R11 pressure regulator orifices: 1 inlet 1 outlet, 1 inlet 2 outlet, and 2 inlet 2 outlet. The following figure shows the structure of the diagram. Physical drawings of the three hole positions  1inlet 1outlet                              1inlet 2outlet                            2inlet 2outlet The reason why R11 pressure regulators are divided into three hole types is because of the different functional requirements. Two-hole pressure regulator: generally have inlet and outlet holes, such as some simple pneumatic systems in the small pressure regulator, through the inlet hole access to compressed air and other gas sources, through the internal pressure regulator, the output from the outlet hole of a stable pressure of the gas, for the subsequent pneumatic components such as cylinders, valves, etc., to provide a stable power source. Three-hole pressure regulator: Commonly, there are inlet, outlet and exhaust ports, such as AFKLOK regulator, the left and right side of the inlet and outlet ports, respectively, with an indirect pressure gauge in the middle. The inlet port inputs high pressure gas, the outlet port outputs stable pressure gas after regulation for downstream equipment, and the exhaust port discharges the gas into the atmosphere when the pressure is too high and excess gas needs to be released during the pressure regulation process, which protects the system and regulates the pressure. Four-hole pressure regulator: generally there are two inlet and two outlet, the middle two holes connected to the high-pressure and low-pressure gauge, the inlet end is generally connected to the majority of the cylinder connector, the outlet end is connected to the majority of the ferrule connector, through the pressure gauge adjustment and control of the pressure, high inlet through the conversion to a low output, the output of the gas at this end of the gas is the pressure of the gas to be used ultimately.                      Gas flow diagrams for different pressures

Recently, with the increasing demand for industrial automation and precision control, the pressure regulator, as a key device, plays an important role in several industries. In this article, we will delve into the working principle of pressure regulator and its application in modern industry. Working Principle of Pressure Regulators Pressure regulators, also known as pressure control valves, are used to regulate and stabilise the input pressure within the desired output pressure range. Its core function is to ensure that the pressure within the system remains constant regardless of changes in input pressure or flow rate.   A pressure regulator typically consists of the following key components:   A sensing element, usually a diaphragm or piston, which senses changes in output pressure.   Regulating spring: By adjusting the preload of the spring, the desired output pressure can be set.   Spool and Seat: Controls the passage of fluid and regulates pressure by opening or closing.   Feedback Mechanism: feeds back changes in output pressure to the sensing element for automatic adjustment.   When the output pressure changes, the sensing element senses the change and adjusts the position of the spool through the feedback mechanism, thus changing the amount of fluid passing through and restoring the output pressure to the set value. This process is automatic and ensures stable system operation. Application of Pressure Regulators Pressure regulators are widely used in a number of fields, including but not limited to:   Oil and gas industry: During oil and gas extraction and transmission, pressure regulators are used to control the pressure in pipelines and equipment to ensure safe operation.   Chemical industry: During chemical reactions, precise pressure control is key to ensuring reaction efficiency and product quality.   Medical equipment: In medical equipment such as ventilators and anaesthesia machines, pressure regulators are used to control gas flow and pressure to ensure patient safety.   Food and beverage industry: In the filling and packaging process, pressure regulators are used to control the pressure of gases and liquids to ensure product quality and consistency. Future trends As technology continues to advance, pressure regulators are moving towards intelligence, high precision and multi-functionality. The future pressure regulator will be more integrated, can achieve remote monitoring and automatic adjustment, and further improve the level of industrial automation.   In short, the pressure regulator as an indispensable device in modern industry, its working principle and application prospects deserve in-depth study and attention. With the growing industrial demand, the pressure regulator will play its important role in more fields.

2024 Annual Summary   In the past year, Wolfit gas valves and equipment have been widely used in many fields. Wolfit focuses on serving customers related to semiconductors, new materials, new energy, etc., and is committed to meeting the demanding needs for high-quality gases in high-end fields, and has gained the trust and praise of many customers! Actively expanding domestic and international markets Actively developing domestic and international markets, serving 40+ countries and regions, attaching great importance to customer satisfaction and word-of-mouth building, and providing customers with high-quality products and excellent services.   a. Participation in 20 domestic and international exhibitions In 2024, we had the honour to participate in 20 domestic and international exhibitions with different themes and scales. These exhibitions are like windows into the world of different industries, providing insight into market dynamics, industry trends and competitors, as well as bringing many valuable opportunities and growth for companies. b. Efficient Communication for Development Each exhibition gathers enterprises, professionals and potential customers from all over the world, and this highly concentrated convergence of resources provides us with efficient communication and cooperation opportunities. And we learned the latest market demand and customer pain points, which is an important guidance for the optimisation and upgrading of our products as well as the precise adjustment of market positioning. c. Laying a solid foundation for co-operation When customers from home and abroad visit our company, it is an excellent opportunity for us to show our company's strength, products and culture, and to strengthen the co-operation relationship. We will carefully prepare and professionally receive them, and lead them to the product display area and production workshop, introducing in detail our main product series, technical advantages, production process, quality control system, etc., so that they can intuitively feel the performance and characteristics of the products. Production quality control Importance of Production Quality Control   a. Meeting customer needs High-quality products and services can better meet the actual use of customer demand, improve the reliability, performance and safety of the product, thus enhancing the customer's trust and recognition of the enterprise. b. Enhancement of enterprise competitiveness In a highly homogenised market, quality has become one of the key factors for businesses to stand out. Quality products and services can help companies establish a differentiated competitive advantage and attract more customers to choose our products or services over those of our competitors. c. guaranteeing quality and quantity We always regard product quality as the lifeline of the enterprise, and have established and perfected a strict quality management system. From raw material procurement inspection, production process monitoring to finished product factory inspection, each link is strictly controlled to ensure product quality in line with industry standards and customer requirements. Technology Development Innovation and Honours Future Outlook   Honour is both the end and the starting point. In the future, we will treasure this hard-won honour, and we will take higher standards to strictly demand control and actively respond to market changes and industry challenges!   a. Innovative thinking for development In today's environment full of challenges and opportunities, innovative thinking has become a key driving force for enterprises to stand out and achieve sustainable development. Only by actively exploring and applying innovative thinking to meet challenges and grasp opportunities can we create a new situation for development. b. Professional R&D Team We have a R&D team of professional technicians, focusing on the technical development and process improvement of speciality gases. We have made significant breakthroughs in the purification technology and packaging technology of our existing products, which have resulted in higher purity and better stability of our products and further enhanced their market competitiveness. 2025 Enhancement Plan   In 2025, we will continue to improve product performance and service quality to better enhance and meet customer needs. ♦ Fully satisfy the diversified and personalised needs of customers. For some high-end customers or customers with special needs, we will develop targeted service programmes. ♦ Realise the deep integration of online and offline service channels, real-time information sharing and seamless process. Customers can get consistent and convenient service experience in any channel. ♦Collect the performance problems and experiences encountered by users in the process of using products, classify, sort and analyse them, find out the weak links of product performance and user pain points, and make progress hand in hand with customers!

Domestic valve development status Market size growth In recent years, the market scale of domestic valves has shown a growing trend, and significant localisation results have been achieved in the field of valves. According to relevant data, the market size of China's valve industry in 2022 was 260.282 billion yuan, an increase of 8.5%. It is predicted that in 2024 China's valve market size will reach nearly 6 billion yuan, the compound annual growth rate is expected to reach 5.2%.   Gradual increase in localisation rate Brand building started late, although some excellent brands have a certain degree of popularity in the domestic market, but the influence in the international market is relatively weak. With the enhancement of the technical level of domestic enterprises and the enhancement of independent innovation ability, the localisation rate is gradually increasing.   Internationalisation development Chinese valve enterprises actively participate in international trade, and customers around the world to establish a cooperative relationship, the products are exported to many countries and regions. Some enterprises to build a global service system to enhance the brand's international popularity and market competitiveness.   Domestic valve development trend   Technical innovation to promote product upgrading Domestic valve companies continue to increase investment in technological innovation to improve product performance and quality. With a professional R & D team, focusing on technological innovation and product development, and constantly launch competitive new products to meet the diverse needs of the market.   Industrial upgrading With the transformation and upgrading of the manufacturing industry, the domestic valve industry will move towards high-end, intelligent, green direction, and constantly improve the technical content and added value of products. International expansion Enterprises continue to improve product quality and performance, to the high-end valve market, high-end valves to achieve substitution of localisation. Actively expand the international market, participate in global competition, enhance the share and influence of domestic valves in the international market.  

Why the South African customer still chose us as his supplier, and this time still placed 76 sets of secondary plant. Firstly, the delivery time required by the South African customer was met, and secondly, the price was favourable, within his acceptance range, our products can be regarded as high quality and cheap for him. Secondly, our products meet his purchasing requirements, product quality, material, pressure, flow rate, and variety can meet his needs. Then, the product design of the secondary device, the layout of the panel style, not only the appearance of very beautiful, but also easy to install and fix on the wall. Finally, our packaging is also followed by the product itself customised a suitable inner packaging, is also very delicate, separate packaging can effectively protect the product to prevent collision and damage to the pressure gauge. These above let the customer feel the sense of faith and to him, so we maintain a long time of co-operation, in the future, but also with more partners can provide more suggestions for us to improve.

1. Pressure Protection The unloading valve works in conjunction with the pressure regulator to prevent excessive system pressure. When the system pressure reaches the upper limit set by the pressure regulator, the pressure regulator sends a signal to open the unloading valve. After the unloading valve opens, the fluid in the system (such as hydraulic oil or gas) can flow back to the tank or low-pressure area through the unloading valve, so that the system pressure drops rapidly, avoiding damage to the system due to excessive pressure and equipment components. 2. Energy-Saving Effect In some hydraulic or pneumatic systems, when the system pressure reaches the requirements, there is no need for the system to continue to work at high pressure. The unloading valve works in conjunction with the pressure regulator to unload the pump and other power sources after the pressure has stabilised. For example, in the hydraulic system, when the hydraulic cylinder and other actuating elements to the specified position, the system pressure rises to the pressure regulator set value, the unloading valve action, the hydraulic pump output can be through the unloading valve back to the hydraulic pump at this time in the low load (or even close to no load) state of operation, reducing the power consumption, reducing the energy consumption of the system. 3. Stabilising System Pressure Pressure regulator is used to set the working pressure range of the system, the unloading valve according to the pressure regulator signal for dynamic adjustment of the system pressure. When the system pressure fluctuates due to external factors (e.g. load changes), the pressure regulator senses such changes and controls the opening and closing of the unloading valve. If the pressure is too high, the unloading valve unloads; if the pressure is reduced to the set lower limit, the unloading valve closes, so that the system pressure rises again, thus stabilising the system pressure within the range set by the pressure regulator and ensuring the stable operation of the system.

The 3 key roles of gas pressure reducers are as follows:   Ⅰ. Pressure regulation   1. The primary function of a gas pressure reducer is to reduce the pressure of a high-pressure gas source to a pressure level suitable for use in downstream equipment. For example, industrial gas cylinders may contain gas at pressures as high as 10 - 15 MPa, whereas many instruments such as gas chromatographs, gas lasers, etc. typically require gas pressures of only 0.1 - 0.5 MPa. A gas pressure reducer can precisely regulate the incoming high pressure to the required low pressure, ensuring that the equipment operates at a safe and stable pressure.   2. It can control the output pressure by adjusting its internal pressure regulating mechanism, e.g. by adjusting the gap between the spool and the valve seat. This adjustment can be continuous, and the user is able to finely adjust the pressure according to the specific requirements of the equipment to achieve the best working condition. Ⅱ. Pressure stabilisation   1. The pressure of the gas source may fluctuate due to a variety of factors, such as changes in the rate of gas consumption, changes in the temperature of the gas in the cylinder, and so on. The gas pressure reducer buffers and stabilises the output pressure from these input pressure fluctuations.   2. It does this through an internal pressure feedback mechanism. When the input pressure increases, the pressure reducer will automatically adjust the valve opening to reduce the gas flow, thus maintaining a stable output pressure; conversely, when the input pressure decreases, it will increase the valve opening to maintain the output pressure near the set value. This pressure stabilisation function is vital for pressure-sensitive equipment, such as precision analytical instruments and electronic manufacturing equipment, to ensure that these devices receive a stable supply of gas, thus ensuring their measurement accuracy and production quality. Ⅲ. Safety protection   1. Gas pressure reducers equipped with safety valves can automatically open when the output pressure exceeds the safety limit, releasing excess gas and preventing damage to downstream equipment caused by excessive pressure. For example, when the output pressure regulator of the pressure reducer fails, or when the gas passage of the downstream equipment is blocked, resulting in an abnormally high pressure, the safety valve will be activated to avoid an explosion or other serious safety accidents.   2. For combustible gas pressure reducers, they may also have an anti-flameback device to prevent flames from backing up into the gas supply system and to safeguard the safety of places where combustible gases are used. In addition, the material selection and structural design of the pressure reducer also consider safety, such as the use of corrosion-resistant materials to prevent gas leakage, and reasonable sealing structure to avoid gas leakage and other safety hazards.