Premature wear and noisy operation or vibration of the moving parts can be avoided by selecting the size of check valve on the basis of flow conditions.
为了避免出现运动部件的过早磨损、噪音或振动运行，就要根据流体状态选择止回阀的通径。
The accuracy of traditional spectrum analysis for the diagnosis of reciprocating pump valve is not satisfied for the interference of the noise and the vibration of the adjacent parts.
往复泵泵阀振动信号的常规频谱分析，由于故障特征信息往往被淹没于强大的噪声以及相邻部件的干扰而使诊断精度大打折扣。
The valve should be installed in the absence of severe vibration and shock of the place, and the use of the valve without damage to the venue.
阀门应安装在无剧烈震动和冲击的地方，以及使用阀门无损害的场地。
Aerodynamic stability of turbine inlet valve is the main reason of the vibration of valves.
透平进汽阀的气动稳定性是导致进汽阀阀体振动的主要原因。
Closer throttling, creating higher pressure drops may cause cavitation or excessive velocities which could cause high noise levels, vibration and possible damage to the valve or adjacent piping.
如果节流较小，将因此产生更高的压降将可能导致空穴现象或超快流速，从而导致噪音太高，振动剧烈，可能损坏阀门或相邻的管路。
The valve is also prone to open when exposed to vibration and shock unless it is properly closed and secured.
当暴露于震动和冲击时，除非阀门已经正确关闭和固定，否则它还很容易打开。
There are many factors that influence impact and vibration in hydraulic systems, such as pump structure, valve parameters, load, pipe design and operation conditions.
影响液压系统冲击、振动的因素很多，如泵的结构、阀的参数及负载情况和整个系统管路设计的合理性、工作条件等。
The unsteady flow in the high pressure steam valve cause unusual vibration, the valve pole to be destroyed, the pressure while flowing to be lost, etc.
高温、高压、高压差的蒸汽调节阀中的流动不稳定导致异常的振动，造成阀门的磨损及阀杆破坏以及流动中的压损。
This paper introduces hydraulic vibration-exciting system for marble moulding machine, and pats forward rational selection method of vibration. parameter for the system controlled by rotary valve.
本文介绍了应用于再造大理石成型机的液压激振系统，并提出了应用转间控制的系统其振动参数的合理选择方法。
Flow vibration in turbine control valve is the major consequences of valve stem rupture, valve disc damage as well as the resonance of valve and its pipings.
调节阀的流体振动会造成阀杆疲劳断裂与阀碟的损坏，以及整个阀门及管道系统的共振。
Piping vibration or damage caused due to dynamic loads, such as mechanical vibration, acoustic vibration, fluid hammer, pulsation and relief valve discharge.
由于动荷载引起的管道震动和损坏，例如机械震动，声波震动，液击，压力脉动和泄放阀门泄放时引起的震动。
The new type servo valve can be used in the vibration test bench, the fatigue test bench, and the various hydraulic control systems which need fast response characteristics.
新型伺服阀可以应用于振动试验台、疲劳试验台及需要快速反应的流体控制系统中，可提高系统的快速响应特性。
The characteristics of cylinder cover vibration signals excited by valve impacts and combustion forces are discussed, and some criteria suitable for diesel engine vibration monitoring are proposed.
研究气阀敲击及气缸内燃气激励引起的气缸盖振动特征，并给出适合于柴油机振动状态监测的判据。
Considering damping and complicated boundary conditions for the valve support movement, the dynamic equation of the valve vibration of engine is found.
建立发动机气门振动的运动微分方程，该模型杆端作支承运动，考虑阻尼和较复杂的边界条件。
However, because of the high elasticity modulus and low viscosity of seawater, there is serious vibration in seawater hydraulic relief valve.
但由于海水具有高弹性模量、低黏度的特点，使得海水液压溢流阀存在比较严重的冲击振动问题。
The instrument measures vibration signal of diesel cylinder header, extracts the characteristic parameters, to diagnosis for fault of leakage and abnormal space of valve.
该仪器通过测量柴油机缸盖表面的振动信号，提取特征参数，对柴油机的气阀漏气与间隙异常进行诊断。
If the vibration is caused by the occurrence of shock in the piping system it can be avoided if a properly sized water hammer arrester is installed near the quick closure valve.
如果振动是由于管道中的水锤撞击而引起，在快速关闭阀附近安装型号合适的水锤消除器就能避免。
Choose the brand of hydraulic vibration system and electronic valve, low fault rate and reliable in quality.
选用品牌的液压振动系统和电子起振阀，故障率低，质量可靠。
It has a lightweight design, vibration and impact resistant construction, and integral barbed fittings molded into each body ported 'rb' valve.
它有一个轻巧的设计，振动和耐冲击性建设，整体刺到每个机构移植'模包'阀门配件。
According to this theory, this paper gives an instance for analyzing a vibration signal of reciprocating compressor valve. The method is fairly effective in mechanical fault recognition.
借此理论，本文对较为复杂的往复式空气压缩机气阀振动信号作了分析，探讨了用于故障气阀自动识别的方法，收到了较好的效果。
It is introduced in the feature extraction of the vibration signal induced from reciprocating machinery valve, and t.
提出了一种自适应提取往复机械振动信号冲击特征的信号处理方法。
The vibration signals of reciprocating compressor are basically non-balanced from its configuration and work principle, such as the vibration signals of air-valve, crosshead and piston.
由压缩机的结构和工作原理可知，压缩机的振动信号基本上都是非平稳信号，如气阀，十字头、活塞等振动信号。
This product is closed tight and reliable, large discharge, water resistance, safety valve, valve movement is stable, no vibration noise.
此产品关闭严密可靠、过流量大、阀门阻力水、运行安全、阀门动作平稳，无管振噪音。
The structure characteristics and operation principium of new type pilot operated all open safety valve under low pressure and vibration working conditions are introduced.
介绍一种在超低压和振动条件下工作的先导式全启安全阀的结构特点及工作原理。
The effects of actuating frequency, proportional valve input voltage and MR damper input current on the vibration characteristics of seat were experimentally studied.
试验研究了激励频率、比例阀输入电压及磁流变减振器输入电流对座椅振动特性的影响规律。
Based on the analysis of the failure cause of piston packing ring, air valve and unit pipeline vibration, the methods to solve are proposed.
本文在分析了由活塞密封环、气阀及机组管道振动引起压缩机产生故障原因的基础上，提出了相应的解决办法。
Pneumatic marking printer utilizes the air compressor and a pneumatic valve marking on the work piece through controlling the marking head vibration up and down.
气动标记机是利用空气压缩机和一个气阀控制打印头上下振动，在工件上打下标记。
This concept of coupled vibration analysis is helpful to detecting vibratorylaws of valve system.
这种耦合振动分析的观点，可以为全面探索配气系统的振动规律提供帮助。
The simple well head assembly newly developed is comprised of protection flange, pup joint, clip, gate valve, tee joint and anti-vibration pressure meter.
研制的简易酸化井口装置由保护法兰、过渡短节、卡箍、闸阀、三通和抗振压力表等组成。
The new servo valve can be applied to many high response occasions such as high frequency vibration experimental bed, durability test bed. It will enhance the response characteristic of these systems.
新型伺服阀可以应用于振动试验台、疲劳试验台及需要快速反应的流体控制系统中，提高系统的响应特性。
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