Measure and record the differential pressure across the valve using a Watts Series PG meter. CAUTION: Safety glasses should be used.
采用美国瓦茨系列PG仪器测量和记录通过阀门的压差。警告：应该使用安全眼镜。
Requirements: the pressure differential relief valve must operate to maintain the "zone" between the two check valves at least 2 PSI less than the supply pressure.
要求：压差安全阀必须具有将两个止回阀之间的“区域”压力维持在比供应压力低至少2 PSI的功能。
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.
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。
Analyze the relationship between flow, pressure, pressure differential and valve opening of pressure reducing valves.
分析了减压阀的流量、压力、压力差和阀门开度的关系。
Differential vacuum valve is applied usually, and the question found in application by us is a special question, but if want to use it you should be careful.
压差阀目前应用比较多，我们发现的问题比较特殊，从另一方面看也是一个提醒。
To introduce the structure, performance and design of the differential stop check valve. It has the features of novel design, small moment in operation and seal reliability.
介绍了差压式截止止回阀的结构、性能和设计要点。该阀操作力矩小，密封可靠，运行平稳。
The key of calculation and selection of the valve is to select the correct flow value and the differential pressure value between the valve front and back for calculation.
在阀径计算和选型时关键在于正确选取用于计算的流量值和阀前后差压。
The key of calculation and selection of the valve is to select the correct now value and the differential pressure value between the valve front and back for calculation.
在阀径计算和选型时关键在于正确选取用于计算的流量值和阀前后差压。
After initial pressure differential reading is taken, refer to flow rate charts to obtain flow rate based on pressure differential and valve setting.
在获得初始压差读数后，参阅根据压差和阀门设置而得的流量表。
The ECU accomplishes the fast energizing of the solenoid valve by driving circuit with high frequency PWM, and detects the start of injection by the differential signal of driving current.
采用高频脉宽调制功率驱动电路进行电磁阀的高速强力驱动，并利用电流微分信号有效反馈了控制阀关闭始点。
Two kinds of valve velocity data were got from valve acceleration integral and displacement differential.
由气门加速度积分和气门升程微分得到两路气门速度信号。
Each valve is fitted with 2 pressure test points, red strap indicating upstream (high pressure) and blue strap indicating downstream (low pressure) for differential pressure measurement.
每个阀门配置2个压力测试点，红带表示上游(高压)，蓝带表示下游(低压)，用于压差测量。
The full open position in straight pattern globe valves has higher differential pressure (pressure losses) than an oblique pattern valve.
与倾斜式结构相比，直线式结构截止阀在全开位置具有更高的压差(压力损失)。
The resulting differential pressure is applied to the ends of the spool valve, raising it from its spring-centered null position.
结果导致滑阀端部产生差压并将其自弹簧中心电气零位提升。？
Featured by tight shut-off, this kind of control valve is suitable for applications with relatively low differential pressure. It is suitable for controlling medium flow or pressure.
该类型调节阀适用于工况压差较小的场合，关闭严密，适用于对介质流量或者压力的调节。
This valve is suitable for steam which is high differential pressure and high temperature hot water, with a large CV value, high rangeability and low leakage.
该阀门适用于高差压的蒸汽及高温热水，具较大的CV值，高幅度变化范围、低泄漏。
The muller uses clliper-collet, the gas-valve can flirt and differential, the rapping power and rapping velocity can be adjusted. It can chop and grind the gas-valve and valve seat.
该设备采用快速夹头，气门双向摆动并同向差动，可以调整控制拍击力和拍击速度，可实现气门与气门座的铰削与研磨。
By way of variable conditioning experiments, it concludes that differential pressure changes more gently and the bypass valve operating a lesser extent and effecting more sensitively.
并进行了变工况实验，得到在变频运行工况下压差变化较平缓、旁通动作幅度较小、旁通效果更灵敏的结论。
By way of variable conditioning experiments, it concludes that differential pressure changes more gently and the bypass valve operating a lesser extent and effecting more sensitively.
并进行了变工况实验，得到在变频运行工况下压差变化较平缓、旁通动作幅度较小、旁通效果更灵敏的结论。
应用推荐