China Shenzhen Wofly Technology Co., Ltd. Company News

Safety valves and pressure relief valves are both devices used for pressure system protection, but they differ in their operating principles, application scenarios and functions. Correctly differentiating and selecting the right pressure setting is critical to system safety. Difference between safety valve and pressure relief valve 1. Function and Principle of Operation Characteristics Safety Valve Relief Valve Primary Purpose Preventing explosion or equipment damage due to overpressure (safety protection) Maintaining stable system pressure (process control) Principle of operation Full-opening type: Instantaneous full opening when pressure reaches the set value. Rapid pressure relief Gradual: gradually open the valve with the rise of pressure, and gradually close it after the pressure is lowered. Pressure relief method One-time large amount of relief medium (such as steam, gas) Small flow continuous or intermittent relief (such as liquids, compressible fluids) Reset mode Manual reset Automatic reset       Applicable Scenarios Safety valves: used in high-pressure, high-risk situations (such as boilers, pressure vessels, chemical pipelines), to cope with sudden overpressure. Pressure relief valves: used in systems that require precise pressure control (such as hydraulic systems, water supply networks), regulating pressure fluctuations.   Standards and certification Safety valves are normally subject to stringent standards (e.g. ASME, API, GB/T 12241). Pressure relief valves may comply with general pressure control standards (e.g. ISO 4126).   How to choose the right pressure setting 1. Determine the key parameters Set pressure (Set Pressure): the pressure at which the valve starts to operate. Safety valve: ≤ system design maximum pressure (usually 1.1 ~ 1.2 times the working pressure). Pressure Relief Valve: Slightly higher than the normal working pressure (e.g. 1.05~1.1 times the working pressure). Reseat Pressure: the pressure when the valve is closed (the safety valve needs to be checked to see if it meets the system recovery requirements). Overpressure allowable value: generally not more than 10% of the system design pressure.   2. Selection Steps Evaluate the system requirements: Is it for sudden overpressure (select safety valve) or continuous regulation (select pressure relief valve)? Media type (gas/liquid/steam) and flow requirements.   Refer to regulatory standards: For example, boiler safety valves need to comply with ASME Section I or GB/T 12243.   Calculate the pressure threshold: Safety valve set pressure ≤ vessel maximum allowable working pressure (MAWP). Relief Valve Set Pressure = Normal Working Pressure + Safety Margin (5~10%).   Verify relief capacity: Ensure that the valve relief ≥ the maximum possible overpressure flow rate of the system (e.g., flow rate in case of pump/compressor failure).   3. Other considerations Media characteristics: corrosive media need to use special materials (such as stainless steel, Hastelloy). Environmental requirements: explosion-proof, low or high temperature environment requires special design. Testing and maintenance: safety valves need regular mandatory calibration (such as once a year), pressure relief valves can be online debugging.

In industry, petroleum, chemical industry and daily life, valves are key components for controlling fluid flow. Among them, needle valves and ball valves are two common types of valves, but they have significant differences in structure, function and application scenarios. This article will compare the characteristics of the two in detail, to help users make a more reasonable choice according to the actual needs. 1. Structural differences Needle valve adopts conical needle valve spool, through the fine thread rotation to adjust the spool and seat clearance, so as to accurately control the flow. Its structure is complex, good sealing performance, suitable for high-precision flow adjustment occasions.   The core component of the ball valve is a ball with a through-hole, which can be opened and closed quickly by rotating the ball by 90 degrees. Its structure is simple, convenient operation, suitable for the need to quickly cut off or connect the fluid working conditions. 2. Functional characteristics Flow control: Needle valves are suitable for fine adjustment of small flow, such as laboratory, instrumentation measurement and other scenarios; ball valves are mainly used for fully open or fully closed state, not for precise adjustment.   Sealing: Needle valves have better sealing and can withstand high-pressure environments; ball valves have good sealing when fully closed, but may wear out after long-term use.   Operation: Needle valves need to be adjusted by rotating the handle several times, while ball valves can be switched on and off by rotating 90 degrees only, which makes the operation quicker.   3. Application Scene Needle valve: widely used in petrochemical, electric power system, laboratory instruments and other fields that require precise flow control. Ball valves: commonly used in water supply and drainage systems, natural gas pipelines, HVAC and other occasions that require rapid cut-off of fluids. 4. Comparison of Advantages and Disadvantages Valve type Advantages Disadvantages Needle Valve High Precision Adjustment, Good Sealing Slow Regulation, High Price Ball Valve Quick Opening And Closing, High Durability Not Suitable for Fine Flow Control     Expert Advice Industry experts point out that when selecting a valve, the characteristics of the medium, pressure requirements and frequency of operation should be taken into account. If you need to accurately control the flow, needle valve is the ideal choice; if the pursuit of fast switching and durability, the ball valve is more advantageous.   With the development of industrial automation, smart valves are emerging, but the traditional needle valve and ball valve still occupy an important position because of its reliability and economy. Correct selection not only improves system efficiency, but also extends equipment life and reduces maintenance costs.

Shenzhen, 26 March 2025 - In industrial gas control, laboratory research and special gas applications, choosing a suitable pressure regulator is crucial to system safety and efficiency. Faced with the diverse types of regulators available in the market (e.g. diaphragm, piston, single and double stage, etc.), how to make an accurate choice according to your needs? In this article, we will analyse the characteristics and application scenarios of different regulators. 1. Define the needs: flow, pressure and purity of the medium Before choosing a regulator, three core parameters need to be clarified: Gas flow requirements: Medium flow regulators: for routine laboratory or industrial applications. High purity medium flow regulator: Improve the purity based on the medium flow, suitable for semiconductor, photovoltaic and other precision industries. High flow/high pressure high flow regulator: for high flow requirements, such as large gas stations or manufacturing facilities. Operating pressure range: High-pressure piston regulator: Resistant to high pressure (e.g., 3000 PSI or more), suitable for oil and energy fields. Diaphragm regulator: low and medium pressure environment, high sensitivity, suitable for laboratory precision instruments. Gas purity level: High purity pressure regulator: polished inner wall and non-polluting material, designed for electronic grade gases (e.g. helium, argon).   2. Key Type Comparison Single-stage vs two-stage pressure regulators: Single-stage regulators are simple and suitable for stable pressure scenarios; two-stage pressure regulators automatically compensate for pressure fluctuations and are suitable for critical processes where the outlet pressure needs to be extremely stable. Diaphragm vs Piston: Diaphragm type has good sealing and corrosion resistance; piston type has stronger pressure capacity, but requires regular lubrication and maintenance. 3. Purchasing Suggestions Certification and Qualification: Confirm that the product meets ISO, UL or industry-specific standards (e.g. SEMI standards). Vendor services: Give preference to regular vendors who provide technical advice and after-sales support. Customisation requirements: special media (such as corrosive gases) need to be customised materials (such as 316L stainless steel, Hastelloy). Industry experts remind: ‘Different application scenarios on the regulator response speed, sealing and life requirements vary significantly, it is recommended that users provide detailed parameters before making a choice.’ At present. Shenzhen Wofly Technology Co. Platform has been online full range of regulator products, users can consult online through the official website or call the hotline [0755-0927023443] to get one-on-one selection services.

With the growing global demand for clean energy, hydrogen energy, as an efficient and environmentally friendly form of energy, is gradually becoming an important direction of energy transformation. In this context, stainless steel compression fittings, with their excellent pressure resistance, corrosion resistance and sealing performance, have become a key component in the hydrogen energy delivery and storage system, providing strong support for the development of the new energy sector. 1. The rise of hydrogen energy industry and the demand for stainless steel compression fittings Hydrogen energy is regarded as an important part of the future energy mix due to its zero-emission, high energy density and renewable properties. However, the storage and transport of hydrogen puts extreme demands on equipment materials. Hydrogen is extremely permeable and corrosive, and traditional materials are difficult to meet the needs of long-term stable operation. Stainless steel compression fittings, with their excellent mechanical properties and corrosion resistance, are the ideal choice for hydrogen energy systems. In recent years, the global hydrogen energy infrastructure projects are increasing, from hydrogen refuelling stations to hydrogen pipelines, and the demand for stainless steel compression fittings has risen sharply. According to industry data, the demand for stainless steel compression fittings in the global hydrogen energy market grew by 15% year-on-year in 2023, and this trend is expected to continue strengthening over the next five years.   2. Technical advantages of stainless steel compression fittings Stainless steel compression fittings are widely used in the hydrogen energy field thanks to their unique technical advantages: High pressure resistance: able to withstand the storage and transport needs of hydrogen in high-pressure environments. Corrosion resistance: Stainless steel material can effectively resist the corrosion of hydrogen, extending the service life of the equipment. Sealing performance: the use of advanced sealing technology to ensure that the hydrogen in the delivery process without leakage, to protect the system safety. Environmentally friendly: Stainless steel is 100% recyclable, in line with the concept of sustainable development in the new energy sector.   Several manufacturers have also launched high-performance stainless steel compression fittings for the special needs of hydrogen energy systems. For example, a well-known company's latest development of ‘hydrogen special couplings’ using double seal design and surface hardening treatment, to further enhance the reliability and durability of the product.   3. Practical application cases Stainless steel compression fittings have been widely used in many hydrogen energy demonstration projects in Europe and Asia. For example, a large-scale hydrogen refuelling station project in Germany has adopted high-performance stainless steel compression fittings for connecting hydrogen storage tanks and refuelling equipment. The project leader said, ‘The high sealing and corrosion resistance of stainless steel compression fittings ensures the safe operation of the system and provides important support for the promotion of hydrogen energy infrastructure.’   In addition, stainless steel compression fittings play a key role in the gas supply system of hydrogen fuel cell vehicles. Their stable performance ensures the efficient delivery of hydrogen from the storage tank to the fuel cell, providing reliable operation of the vehicle.   4. Industry Outlook With the rapid development of the global hydrogen energy industry, the stainless steel compression fittings market has ushered in new growth opportunities. According to market research organisations, the global demand for stainless steel compression fittings in the hydrogen energy sector will reach billions of dollars by 2028. At the same time, manufacturers are increasing investment in research and development to introduce more high-performance products adapted to the needs of new energy sources. Industry insiders point out that the future of stainless steel compression fittings will not only shine in the field of hydrogen energy, and is expected to be widely used in solar energy, wind energy and other new energy fields, contributing to the global energy transition.   Conclusion Stainless steel compression fittings are becoming an indispensable key component in the new energy field due to their excellent performance and reliability. With the rapid development of the hydrogen industry and the continuous growth of the global demand for clean energy, the stainless steel compression fittings industry will usher in a broader development prospects. In the future, this ‘small part’ is expected to play a greater role in the tide of energy transformation, adding bricks and mortar to the construction of a green earth.

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!