注意：双阀瓣止回阀能够安装在水平或流向朝上的垂直位置。
NOTE: Twin Disc Check Valves can be installed horizontally or in the vertical position with flow up.
为了安全起见我们要在取样点设双阀以便于安全的压降，取样口还要加护罩。
For safety we should use dual valves to aid safe pressure reduction, and cap the sample outlets.
介绍了一种新型的压力先导控制伺服阀，该阀的功率放大级采用双阀芯结构代替传统单阀芯结构。
A new servovalve using a pressure control pilot state was introduced, which USES two spools instead of single spool in power magnifying stage.
基于这种情况，本课题提出了基于负载自适应的流量伺服阀和电液比例溢流阀双阀反馈补偿控制方案。
So a new design scheme about double valve compensation feedback control system based on adaptive load is proposed.
仿真和实验结果表明：加载系统采用双阀并联控制比单阀控制的多余力明显减小，动态加载精度明显提高。
The result shows that superfluous force is less in double valve parallel control system than that in single valve control system, and the precision of dynamic loading is increased.
该仪器采用二泵一阀系统，由单片机控制，具有双路信号实时采集和数据处理功能。
The unit which consisted of two peristaltic pumps and a multi function sampling valve was controlled by a single chip microprocessor.
在燃具上使用双控燃气稳压阀，燃烧工况稳定，适应性强，安全性高。
Applying this valve to gas appliance shows stable combustion condition, strong adaptability and high security.
研究液压系统的一种新的故障检测方法，利用时间序列双谱分析实现调速阀故障诊断。
In this paper, time series bi-spectrum analysis for fault diagnosis of speed-regulating valve is proposed to study a new fault detection method for the hydraulic system.
选取了一种高效的橡胶薄膜阀片，设计并制作了具有较高输出能力的双腔泵样机。
A high efficient rubber membrane valve was made, and double-chambered PZT pump with high output capability was designed and fabricated.
每侧履带的行走机构由一个变量双速柱塞马达、行星减速器和制动器组成，行走制动缓冲阀与马达一体安装，吸收了行车时由于制动或载荷变化带来的液压冲击。
Travel mechanism of each track consists of a variable two-speed piston motor, a planetary reducer and a parking brake, travel brake buffer valve is mounted on motor to reduce hydraulic shock.
分析了双控燃气稳压阀的工作原理、结构和优点。
The operating principle, structure and advantages of dual controlled gas constant pressure valve are analyzed.
阐述了带整体开启阀的双腔串联压电薄膜泵的工作原理并给出结构设计。
The working principle of the piezoelectric membrane pump with the series-connected double Chambers and the holistic opening valve was analyzed theoretically and its structure design was given.
理论分析和实验结果表明：双喷嘴挡板电液伺服阀具有良好的流量-电流比例特性和小负载流量的控制能力。
Both the simulation and experimental results indicate that the dual flapper-nozzle servo valve has good flow-current characteristics and strong ability to control small flow rate.
本实用新型的优点是能不用阀箱改变气流方向，就能使双喷嘴空气透平波浪发电装置在波浪中发电。
The utility model has the advantages of changing flow direction without the valve box, can make the double-nozzle air turbine wave power generation device generate electricity in the wave.
液压系统采用了先进的二通插装阀系统、进口高性能的电子泵技术，实现了主缸压力与流量的双闭环控制；
The press takes use of advanced two-way cartridge valve system and imported electric pump technology which can realize double closed loop control of pressure and flow rate.
一种基于PLC的电液自动控制系统，采用了电液比例阀的双闭环控制系统。
This paper introduces an electrohydraulic control system based on PLC. A double close - loop control system with electro - hydraulic proportional valve is adopted.
双（多）车翻车机液压系统是目前插装阀工业应用较为集中的系统。
The double(multiple)-train dump hydraulic system is the system now very extensively utilized in the cartridge valve industry.
该文介绍了一种新型的数字式液压操纵系统，系统采用并联方案，以高速电磁阀为先导控制级，通过双节流阀进行操纵系统的压力、流量控制。
It is a parallel connection system and this system USES the high-speed valve as a pilot valve to control the twin throttle which controls the pressure and the flux of the hydraulic control system.
双止回防回流阀用于低危险交叉连接。持续压力应用场合。
DUAL CHECK VALVE BACKFLOW PREVENTER For low hazard cross-connections. Continuous pressure applications.
本实用新型提供的双密封燃气专用阀属于一种燃气专用阀。
The utility model provides a double-sealed special valve for combustion gas, belonging to a special valve for the combustion gas.
TK - DL可以检测压力真空断路阀，减压防回流阀或双止回阀总成。
The TK-DL can test pressure vacuum breakers, reduced pressure backflow preventers or double check valve assemblies.
适用于检测压力真空断路阀，减压防回流阀或双止回阀总成，不再需要压力表和压差表。
Designed to test pressure vacuum breakers, reduced pressure backflow preventers or double check valve assemblies, allowing you to eliminate both pressure and differential test gauges.
本实用新型是一种单动双通平衡阀，由阀体、阀塞、阀杆、压盖、补偿垫圈等组成。
The utility model relates to a single-action two-way equalizing valve, comprising a valve body, a valve plug, a valve rod, a pressing cover, a compensating cushion ring, etc.
美国瓦茨双止回防回流阀可以按照连接类型、通径和接头构成许多不同的组合。
Watts Dual Check Backflow Preventers can be specified in many different combinations of connection types, sizes, and union options.
为此，在一次接线上采用了双12脉动阀组接线，使得一个阀组故障时仍可传送一半功率。
In order to improve its reliability, the main electric connection mode with double 12-pulse valve groups is adopted.
这种双止回防回流阀应该按照美国国家标准化组织(ASSE)标准1024进行设计。
The dual check backflow preventer shall be designed under the ASSE Standard 1024.
这种双止回防回流阀应该按照美国国家标准化组织(ASSE)标准1024进行设计。
The dual check backflow preventer shall be designed under the ASSE Standard 1024.
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