进口气动薄膜调节阀由气动薄膜执行机构和调节阀两大部分组成，它与气动调节器，减压阀、定位器或其他仪表配合使用，达到控制管道内的温度、压力、液位、流量等工艺参数。单座调节阀具有易密封，泄漏量小的优点，但平衡力较大，故工作压差不宜过高。双座调节阀具有流量系数大，不平衡力较小的特点，因而使用广泛。
The imported pneumatic diaphragm control valve is composed of pneumatic diaphragm actuator and control valve. It is used with pneumatic regulator, pressure reducing valve, positioner or other instruments to control the process parameters such as temperature, pressure, liquid level and flow in the pipeline. The single seat control valve has the advantages of easy sealing and small leakage, but the balance force is large, so the working pressure difference should not be too high. The double seat control valve has the characteristics of large flow coefficient and small unbalance force, so it is widely used.
1.ding底、层双导向双座调节阀，工作时稳定性好。
2.有两个阀芯和阀座，采用“四通”阀体，可以方便地由正装改装成反装，气关阀变气开阀。
3.阀体按流体动力学原理设计的等截面低流阻流道，额定流量系数大。
4.不平衡力小，允许使用压差较大。
5.执行机构采用多弹簧结构，高度减小30%。重量减轻30%。
6.可调范围大，固有可调比为50%。
7.LXNV型波纹管密封型调节阀对移动的阀杆形成了完全密封，堵绝流体外漏。
8.LXNJ型调节阀带有保温夹套，用于流体冷却后易结晶、凝固造成堵塞的场合。
