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- Electro-vacuum Differential Pressure Valve DYC-JQ electro-vacuum differential Pressure valve is a safely valve for mechanical vacuum pump. 是机械真空泵安全阀，安装于机械真空泵的进气口，并与泵同步开启和关闭。
- self-operated differential pressure valve 自力式压差控制阀
- The maximum differential pressure across the valve seat. 通过阀门阀座的最大压差。
- Record this as the opening differential pressure of the relief valve. 将此读数记录为安全阀开启压差。
- Low Pressure Valve Options and Accessories Misc. 低压阀门备选件和附件。
- Measure and record the differential pressure across the valve in the throttled position. 测量和记录通过处于节流位置的阀门的压差。
- Gage pressure is a special case of differential pressure. 计示压力是差压力的一种特殊情况。
- Measure and record the differential pressure across the valve using a Watts Series PG meter. 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。
- The big LED-display shows the actual differential pressure. 大LED显示屏显示了实际差压值。
- Elbow flowmeter is one version of differential pressure flowmeters. 弯管流量计是差压法流量计的一种。
- Slowly open vent needle valve just as air inlet opens. Record differential pressure. 当空气进口开启时,慢慢开启排气针形阀。记录压差。
- Slowly open needle valve "C" bypass (yellow) just as air inlet opens. Record differential pressure. 正当空气进口打开时，慢慢开启针形阀“C”旁路（黄）。记录压差。
- Bell gages may be used to measure gage pressure or differential pressure. 浮钟式压力计可以用来测量计示压力或差压力。
- 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。
- Be sure to close test cock before pressurizing valve. 在重新对阀门加压之前，请确认关闭测试旋塞阀。
- Wedging actions help affect a tight seal in low differential pressure services. 楔形的作用有助于在低压差应用中产生紧密的密封。
- If the pressure builds up excessively, the pressure valve opens to relieve the pressure. 如果油箱内压力过高，则压力阀开启，以降低压力。
- Requirement: Differential pressure across check must be 1.0 PSID or above. 要求：通过止回阀的压差必须在1.;0PSID及以上。
- Calculations for differential pressure level transmitters shall be carried out. 应进行差压液位变送器的计算。
- Introducing the optimal structure mode of The twostep pressure valve,its veracity and its stability are best of all. 介绍了新型先导压力阀的结构特点,该阀准确性和稳定性好。
