在工业自动化控制系统中，调节阀是执行器的“王牌”——它不像闸阀那样只负责“开”和“关”，而是根据控制信号实时调整阀门开度，合理控制介质的流量、压力、温度和液位。良工阀门集团的调节阀产品线覆盖了从-200℃深冷到560℃超高温的出彩端工况，是工业自动化领域不可或缺的“智能调节师”。

In the industrial automation control system, the regulating valve is the "ace" of the actuator - it is not only responsible for "opening" and "closing" like the gate valve, but also for adjusting the opening of the valve in real time according to the control signal to accurately control the flow, pressure, temperature and liquid level of the medium. The regulating valve product line of Lianggong Valve Group covers extreme working conditions from -200 ℃ deep cold to 560 ℃ ultra-high temperature, and is an indispensable "intelligent regulator" in the field of industrial automation.

一、调节阀的工作原理与核心价值

1、 The working principle and core value of regulating valves

调节阀的核心任务是“调节”——根据来自控制系统的4-20mA电流信号或0-10V电压信号，改变阀芯与阀座之间的流通面积，从而实现对介质流量的准确控制。与普通开关阀不同，调节阀的阀芯可以在任意位置停留，实现从全关到全开的无级调节。

The core task of a regulating valve is "regulation" - based on the 4-20mA current signal or 0-10V voltage signal from the control system, it changes the flow area between the valve core and the valve seat, thereby achieving precise control of the medium flow rate. Unlike ordinary on-off valves, the valve core of the regulating valve can stay at any position, achieving stepless adjustment from fully closed to fully open.

良工调节阀的技术优势体现在高精度、高可靠性、强适应性三个维度。以ZXP型新系列气动薄膜直通单座调节阀为例，它采用顶导向结构，配用多弹簧执行机构，具有结构紧凑、重量轻、动作灵敏、流体通道呈S流线型、压降损失小、阀容量大、流量特性准确、拆装方便等优点。该系列产品公称压力等级有PN10、16、40、64；阀体口径范围DN20至200mm；适用流体温度从-200℃到560℃范围内多种档次；泄漏量标准可达IV级或VI级。

The technical advantages of Lianggong regulating valves are reflected in three dimensions: high precision, high reliability, and strong adaptability. Taking the ZXP new series pneumatic thin film straight through single seat regulating valve as an example, it adopts a top guide structure and is equipped with a multi spring actuator. It has the advantages of compact structure, light weight, sensitive action, S-shaped fluid channel, low pressure drop loss, large valve capacity, precise flow characteristics, and easy disassembly and assembly. The nominal pressure rating of this series of products includes PN10, 16, 40, and 64; Valve body diameter range DN20 to 200mm; suitable for fluid temperatures ranging from -200 ℃ to 560 ℃ in various grades; The leakage standard can reach level IV or level VI.

二、良工调节阀的主流产品系列

2、 The mainstream product series of Lianggong regulating valves

气动薄膜调节阀是良工调节阀的“当家花旦”。ZXP型气动薄膜直通单座调节阀广泛应用于控制气体、液体、蒸汽等介质，非常适用于允许泄漏量小、阀前后压差不大的工作场合。ZXN型气动薄膜双座调节阀采用双导向结构，非常适用于允许压差较大的场合。

Pneumatic thin film regulating valve is the "leading actress" of Lianggong regulating valve. The ZXP type pneumatic thin film straight through single seat regulating valve is widely used to control media such as gas, liquid, steam, etc., especially suitable for working environments with small allowable leakage and small pressure difference before and after the valve. The ZXN pneumatic thin film double seat regulating valve adopts a dual guide structure, which is particularly suitable for situations where a large pressure difference is allowed.

电动调节阀则适用于需要远程自动化控制的场景。ZDLP电动单座调节阀由PSL系列和3810L系列电子式执行机构和单座调节阀组成，电源为220V.AC 50Hz，可直接接受工业控制仪表或计算机输出的4-20mADC或1-5VDC信号进行阀门的开度控制。该阀具有精度高、流量大、泄漏量小的特点，广泛用于化工、石油、轻工、电站、冶金等要求流量大、泄漏量小的工业自控系统中。

Electric control valves are suitable for scenarios that require remote automation control. The ZDLP electric single seat regulating valve consists of PSL series and 3810L series electronic actuators and single seat regulating valves. The power supply is 220V, AC 50Hz, and can directly receive 4-20mADC or 1-5VDC signals output by industrial control instruments or computers for valve opening control. This valve has the characteristics of high precision, large flow rate, and small leakage, and is widely used in industrial automation systems such as chemical, petroleum, light industry, power plants, metallurgy, etc. that require large flow rate and small leakage rate.

电动套筒调节阀（ZAZME） 公称通径由20至200mm，公称压力有1.0、1.6、4.0、6.4MPa，使用温度范围由-40℃～450℃。其中电动单座调节阀适用于压差较小、介质粘度较大或稍有颗粒杂质的场合；电动套筒调节阀适用于压差较大的场合。

The nominal diameter of the electric sleeve regulating valve (ZAZME) ranges from 20 to 200mm, with nominal pressures of 1.0, 1.6, 4.0, and 6.4MPa. The operating temperature range is from -40 ℃ to 450 ℃. The electric single seat regulating valve is suitable for situations with small pressure difference, high medium viscosity, or slight particle impurities; Electric sleeve regulating valves are suitable for situations with large pressure differentials.

自力式调节阀（ZZYP） 无需外加能源，利用被调介质自身能量为动力源，引入执行机构控制阀芯位置，改变两端的压差和流量，使阀前或阀后压力稳定，具有动作灵敏、密封性好、压力设定点波动小等优点。

The self regulating valve (ZZYP) does not require external energy and uses the energy of the regulated medium as a power source. It introduces an actuator to control the position of the valve core, changes the pressure difference and flow rate at both ends, and stabilizes the pressure before or after the valve. It has the advantages of sensitive action, good sealing performance, and small pressure set point fluctuations.

手动调节阀（T40H） 适用于工作压力≤1.6MPa、介质温度≤200℃的蒸汽或热水管路上调节流量。其调节性能优于闸阀和截止阀，具有近似线性的调节性能，能有效改善供热条件和水力工况。

The manual regulating valve (T40H) is suitable for regulating flow on steam or hot water pipelines with working pressure ≤ 1.6MPa and medium temperature ≤ 200 ℃. Its regulating performance is superior to gate valves and globe valves, with approximately linear regulating performance, which can effectively improve heating conditions and hydraulic conditions.

本文由良工阀门代理友情奉献.更多有关的知识请点击:http://www.jnlgvf.com真诚的态度.为您提供为多维度的服务.更多有关的知识我们将会陆续向大家奉献.敬请期待.

This article is a friendly contribution from Lianggong Valve Agency For more information, please click: http://www.jnlgvf.com Sincere attitude To provide you with comprehensive services We will gradually contribute more relevant knowledge to everyone Coming soon.