一、进口气动双座调节阀概述

进口气动薄膜双座调节阀，Pneumatic Double Seat Control Valve，美国威盾VTON品牌，采用双号导向结构，配用多弹簧招执机构，具有结构紧凑、重量轻、动作灵敏、阀容量大、流量特性精确、拆装方便等优点。借助于电气阀门定位器、转换器电磁阀、保位阀等附件去驱动阀门，实现开关量或比例式调节，接收工业自动化控制系统的4-20ma毫安或者0-10V伏的控制信号来完成调节管道介质的：流量、压力、温度等各种工艺参数。

The Pneumatic Double Seat Control Valve, also known as the Pneumatic Double Seat Control Valve, is a VTON brand from the United States. It adopts a double number guide structure and is equipped with a multi spring actuator. It has the advantages of compact structure, light weight, sensitive action, large valve capacity, precise flow characteristics, and convenient disassembly. By using accessories such as electrical valve positioners, converter solenoid valves, and holding valves, the valve can be driven to achieve switch or proportional adjustment. It can receive control signals from industrial automation control systems ranging from 4-20mA or 0-10V to adjust various process parameters such as flow rate, pressure, and temperature of the pipeline medium.

进口气动薄膜双座调节阀广泛应用于精确控制气体、液体、蒸汽等介质的工艺参数如压力、流量、温度、液位保持在给定值。特别适用于压差较大，允许泄漏也较大且不是很清洁的介质场合。

Pneumatic thin film dual seat regulating valves are widely used for precise control of process parameters such as pressure, flow rate, temperature, and liquid level of gases, liquids, steam, and other media to maintain the given values. Especially suitable for media with large pressure difference, allowable leakage, and not very clean conditions.

美国威盾VTON进口气动薄膜双座调节阀有标准型、波纹管密封型、夹套保温型等多种品种。产品公称压力等级有PN16、40、64；阀体口径范围DN25～400。适用流体温度有-250℃～+560℃范围内多种档次。泄漏量标准为Ⅲ级和Ⅳ级。流量特性为线性或百分比。多种多样的品种规格可供选择。

二、进口气动薄膜双座调节阀主要零件材料