泄压阀和减压阀的7大区别（中英文）
泄压阀和减压阀用于不同的应用，以控制和调节压力。
• 功能：泄压阀用于保护系统或设备免受过大压力的累积，而减压阀则用于控制和降低流经系统的流体压力。
• 工作原理：泄压阀常闭，当压力超过设定限值时打开；减压阀在压力达到所需设定值时打开。
• 压力控制：泄压阀设定为特定的压力限值，并完全打开以释放过大的压力，直到压力降至设定限值以下；减压阀设定为所需的较低压力，并调节其开度以保持恒定的下游压力。
• 流动方向：泄压阀允许流体逸出并释放系统压力，而减压阀限制流量并降低下游系统的压力。
• 位置：泄压阀安装在系统或设备的出口或排放侧，而减压阀通常安装在系统的入口或上游侧，用于需要减压的地方。
• 应用：泄压阀用于蒸汽锅炉、压力容器和管道，而减压阀用于配水系统、灌溉系统和工业过程。
• 设定点调节：泄压阀在运行过程中无法调节设定压力，而减压阀则允许通过更改设定点或使用外部控制来调节下游压力。
Pressure Relief Valves and Pressure Reducing Valves are used in different applications to control and regulate pressures.
• Function: Pressure Relief Valves are designed to protect a system or equipment from excessive pressures buildup while pressure reducing ones are used to control and reduce the pressures of a fluid flowing through a system.
• Operation: The Relief ones operate in a normally closed position and open when the pressures exceeds the set limit while the other one operates when the pressures reaches the desired set point.
• Pressure Control: The Relief one is set to a specific pressures limit and opens fully to relieve excess pressure until the pressures drops below the set limit while the other one is set to a desired lower pressures and adjusts its opening to maintain a constant downstream pressure.
• The direction of Flow: The Relief one allows the fluid to escape and relieve pressures in the system while the other one restricts the flow and reduces the pressures in the downstream system.
• Location: The Relief one is installed at the outlet or discharge side of a system or equipment while the other one is generally installed at the inlet or upstream side of a system, where pressures reduction is required.
• Applications: The Relief one is used in steam boilers, pressure vessels, and pipelines while the other one is used in water distribution systems, irrigation systems, and industrial processes.
• Set Point Adjustment: In the Relief one set pressures cannot be adjusted during operation while the other one allows adjustment of the downstream pressures by changing the set point or using external controls.
减压阀和泄压阀的用途
Purpose of pressure reducing valve and pressure relief valves
用途 | 减压阀 | 泄压阀 |
工作 | 控制并将流体压力降低至所需的较低压力 | 当压力超过设定限值时，泄压阀打开，排出多余的液体，从而降低压力，保护系统或设备免受过大压力的影响。 |
应用 | 供水系统、灌溉系统、工业流程 | 蒸汽锅炉、压力容器、管道 |
重要性 | 通过维持所需的压力水平，确保下游设备或系统安全高效运行 | 保护设备和系统免受过大压力造成的潜在损坏或灾难性故障。 |
Purpose | Pressure reducing valve | Pressure relief valve |
Working | Controls and reduces fluid pressure to a desired lower pressure | Protects a system or equipment from excessive pressures buildup by opening when the pressures exceeds a set limit, allowing the excess fluid to escape and reducing the pressures |
Applications | Water distribution systems, irrigation systems, industrial processes | Steam boilers, pressures vessels, pipelines |
Importance | Ensures safe and efficient operation of downstream equipment or systems by maintaining desired pressure levels | Protects equipment and systems from potential damage or catastrophic failure due to excessive pressure |
减压阀和泄压阀的功能
Function of pressure reducing valve and pressure relief valves
减压阀 | 泄压阀 |
维持下游压力 | 过压保护 |
允许压力调节 | 防止系统损坏 |
保护下游设备 | 紧急泄压 |
确保系统效率 | 安全措施 |
Pressure reducing valve | Pressure relief valve |
Maintains downstream pressure | Overpressure protection |
Allows pressure adjustment | Prevents system damage |
Protects downstream equipment | Emergency pressure relief |
Ensures system efficiency | Safety measure |
减压阀和泄压阀的局限性是什么？
What are the limitations of pressure reducing valve and pressure relief valves?
减压阀 | 泄压阀 |
容量有限 | 精度有限 |
依赖上游压力 | 运行过程中压力累积 |
压力波动大 | 噪音和振动 |
维护要求高 | 取决于系统设计 |
Pressure reducing valve | Pressure relief valve |
Limited capacity | Limited accuracy |
Dependence on upstream pressure | Pressure buildup during operation |
Pressure fluctuations | Noise and vibration |
High maintenance requirements | Dependence on system design |
声明：
- 文章转载自BAILEY BIRKETT，由爱泽工业翻译，如有侵权，请联系删除！
- 如有偏颇，欢迎指正！
