Stainless steel corrosion-resistant gas pressure reducer, pressure gauge, explosion-proof pressure reducing valve manufacturer.

Stainless steel corrosion-resistant gas pressure reducer, pressure gauge, explosion-proof pressure reducing valve manufacturer.

Model: YQBT-16, YQL-30, YQBT-52, YQL-31

Measurement range: 10 (MPa).

Gas pressure regulator

以下是“Gas pressure reducer”的一些同义词： - **Gas pressure regulator**：这是最常见的同义词，“regulator”强调对压力的调节、控制功能，与“reducer”在意义上非常接近，都表示用于降低和调节气体压力的装置。 - **Gas pressure decompressor**：“decompressor”侧重于减压的动作和功能，明确表示将气体压力降低的设备，与“pressure reducer”含义相符。 - **Gas pressure attenuator**：“attenuator”有减弱、衰减之意，在这里表示对气体压力的减弱作用，可作为“gas pressure reducer”的同义表达，用于描述降低气体压力的装置。 - **Gas pressure down-regulator**：“down-regulator”更加强调将压力向下调节，即降低压力的方向，与“gas pressure reducer”的功能一致，是其较为准确的同义词。

How to choose a suitable explosion-proof pressure reducing valve?

1. In terms of medium characteristics:

    - **Medium type**: Firstly, it is necessary to clarify whether the medium flowing through the pressure reducing valve is gas or liquid. If it is gas, it is also necessary to determine whether it is a single gas (such as oxygen, nitrogen, etc.) or a mixed gas. If it is liquid, it is necessary to consider whether it has characteristics such as corrosiveness and viscosity. For example, for pipelines transporting hydrogen, an explosion-proof pressure reducing valve specially designed for hydrogen is required. The sealing material and internal structure of this pressure reducing valve should be able to prevent hydrogen leakage and static electricity generation.

    - **Corrosiveness**: If the medium is corrosive, such as gas or liquid containing acidic or alkaline components, then the material of the pressure reducing valve should have corresponding corrosion resistance. Explosion-proof pressure reducing valves made of stainless steel are suitable for some weakly corrosive media. For strongly corrosive media (such as hydrochloric acid, sodium hydroxide solution, etc.), pressure reducing valves made of more advanced corrosion-resistant materials such as Hastelloy may be required.

    - **Whether it is flammable and explosive**: For flammable and explosive media, such as natural gas, liquefied petroleum gas, etc., it is necessary to ensure that the selected explosion-proof pressure reducing valve has reliable explosion-proof performance. This includes adopting a special sealing structure to prevent gas leakage and using explosion-proof designs for components that may generate sparks, such as using non-sparking materials or performing electrostatic elimination treatment.

2. In terms of pressure parameters:

    - **Inlet pressure range**: It is necessary to know the maximum inlet pressure of the medium in the system. The rated inlet pressure of the selected explosion-proof pressure reducing valve must be able to withstand this pressure. For example, if the inlet pressure of the system may reach 10 MPa, then a pressure reducing valve with a rated inlet pressure greater than 10 MPa should be selected. Generally, it is recommended to have a certain margin. For example, a product with a rated inlet pressure of 12 - 15 MPa can be selected.

    - **Outlet pressure requirements**: Determine the outlet pressure according to the requirements of subsequent equipment or processes. Different application scenarios have different precision requirements for outlet pressure. Some equipment may only require the outlet pressure to be within a general range, while some precision equipment requires precise control of the outlet pressure. For example, in some chemical reaction processes, the gas pressure needs to be precisely reduced to 0.5 MPa. This requires the explosion-proof pressure reducing valve to provide a stable and precise pressure reduction function and stably reduce the inlet pressure to the set outlet pressure of 0.5 MPa.

    - **Pressure adjustment range**: The pressure adjustment range of the explosion-proof pressure reducing valve should cover the pressure range required in actual applications. For example, if the pressure needs to be adjusted between 2 - 6 MPa in actual work, then the adjustment range of the selected pressure reducing valve should at least include this interval, and it can stably and accurately adjust the pressure within this range.

3. In terms of flow requirements:

    - **Rated flow matching**: Select an explosion-proof pressure reducing valve with an appropriate rated flow according to the flow rate of the medium in the system. If the actual flow exceeds the rated flow of the pressure reducing valve, it may lead to poor pressure reduction effect, unstable pressure, and even damage to the pressure reducing valve. For example, if the gas flow in the system is 300 m³/h, then an explosion-proof pressure reducing valve with a rated flow of not less than 300 m³/h should be selected. In order to ensure the stability and reliability of the system, a product with a rated flow slightly larger than the actual flow can usually be selected, such as a pressure reducing valve with a rated flow of 350 m³/h.

    - **Flow characteristic curve**: In some application scenarios, it is necessary to consider the flow characteristic curve of the explosion-proof pressure reducing valve. The flow characteristic curve reflects the change of flow under different pressure drops. For some systems that are relatively sensitive to the relationship between flow and pressure, such as some automatic control gas supply systems, a pressure reducing valve with a flow characteristic that meets the system requirements should be selected to ensure that a stable flow can be provided under different pressure adjustment conditions.

4. In terms of environmental factors:

    - **Temperature range**: Consider the working environment temperature range of the explosion-proof pressure reducing valve. If it is in a high-temperature environment, such as in a steel smelting workshop, the ambient temperature may be as high as several hundred degrees Celsius, and a pressure reducing valve that can withstand high temperatures is required. In a low-temperature environment, such as in a liquid nitrogen storage system, a pressure reducing valve that can work normally at extremely low temperatures may be required. At the same time, it is also necessary to consider the impact of temperature changes on the performance of the pressure reducing valve, such as whether the thermal expansion and contraction of materials will affect the sealing performance.

    - **Installation location and space limitations**: Select an appropriate model according to the installation location of the pressure reducing valve. If it is installed in a narrow pipeline space, an explosion-proof pressure reducing valve with a small volume and a compact structure should be selected. If it is installed in an outdoor environment, its rainproof, sunscreen, and dustproof performance should be considered, and a product with a corresponding protective shell should be selected.

    - **Whether there are vibrations, shocks, etc.**: If the pressure reducing valve is installed near a vibration source (such as near a compressor) or may be subjected to impacts (such as in a transportation pipeline system), an explosion-proof pressure reducing valve with anti-vibration and anti-shock performance should be selected. This may involve the structural design of the pressure reducing valve, such as adopting a reinforced connection method and adding a buffer device to ensure that the pressure reducing valve can work normally under vibration and shock environments without problems such as loosening and leakage.

5. In terms of certification and standards:

    - **Explosion-proof certification**: Ensure that the selected explosion-proof pressure reducing valve has passed relevant explosion-proof certifications, such as conforming to the explosion-proof standards of the International Electrotechnical Commission (IEC), China's GB3836 series of explosion-proof standards, etc. These certifications are an important guarantee for the explosion-proof performance of products. Only products that have passed certifications can be used safely and reliably in dangerous environments.

- **Industry standards and quality system certifications**: In addition to explosion-proof certifications, it is also necessary to consider whether the product complies with industry-related standards and quality system certifications. For example, in the chemical industry, products may need to comply with HG/T (chemical industry standards); at the same time, ISO9001 quality system certification can also be used as a reference for measuring product quality. Selecting products that have passed these certifications can ensure the quality and stability of products to a certain extent.