The method in this paper is also adapted for other pressure valves.
本文的分析方法也适用于其它类型的压力阀。
Several different types of valves are in use. Some are back pressure valves.
有几种不同的阀在使用中，有些是反向压力阀。
Clamp connection This is a quick connection method, it was only two bolts for the regular demolition of low-pressure valves.
卡箍连接这是一种快速连接方法，它只需两个螺栓，适用于经常拆卸的低压阀门。
The Factory covers an area of 8 mu. Its main products are series of hydraulic pressure valves, which has a very broad market.
工矿机电配件厂占地8亩，主要生产液压阀、磁性槽楔等，产品畅销。
The high pressure valves and equipment division provides industrial, medical, and specialty gases equipment, as well as welding equipment.
高压阀和高压设备分部供应工业，医疗和特种燃气设备，以及焊接设备。
For cylinders equipped with residual (positive) pressure valves, one evacuation under vacuum at 150 millibar is sufficient if the pressure is positive.
对于装有剩余压力阀门的气瓶，如果瓶内剩余压力是正压，把它抽真空到150mbar以下就可以了；
Condition Requirements: boiler start-up to 100-300 kg of pressure valves, flow less pressure when the normal operation of small, flow, flow adjustable 75:1-100:1 ratio.
工况要求：锅炉启动时阀门压差可达100- 300公斤，流量较小，正常运行时压差较小，流量大，流量可调比为75：1 - 100：1。
Condition: The boiler starts up to 100-300 kg of pressure valves, low flow, low pressure drop during normal operation, traffic flow, flow adjustable ratio of 75:1 to 100:1.
工况情况：锅炉启动时阀门压差可达100- 300公斤，流量较小，正常运行时压差较小，流量大，流量可调比为75：1 ~ 100：1。
The situation of working condition: the pressure drop up to 160-350 kg, and power plant systems are under the greatest pressure valves, flow rate is generally 30% of normal flow.
工况情况：压降达160- 350公斤，是电站系统中承受压差最大的阀门，流量一般为正常流量的30%。
Can be used in ship industry, cold water treatment, sea water and cold oil, Low pressure valves, rotating equipment, and reciprocating pump hydraulic squeeze machine, the ship propeller equipments.
可应用于船舶行业、冷水处理、海水及冷油上；低压阀门，旋转设备，及往复泵液压榨机，轮船螺旋桨等设备。
Instead of pumps, valves and human operators, the plant USES airflow, pressure changes and gravity to gradually cool the reactor.
这家电站没有使用管道、阀门和人工操作，而使用了气流、压力变化和重力来逐步冷却反应堆。
Company engineers were due to begin pressure tests on the new cap late Tuesday, gradually closing its valves to shut down the flow of oil.
工程师们将于周二晚开始对这种新型防漏罩进行压力测试，并逐渐关闭其阀门以终止漏油。
The oil pressure will force it up into the heart of the stack of valves.
石油的压力会迫使它上升到真空阀的中心处。
Valves release steam into the pool, where it condenses, relieving dangerous pressure.
这时阀门会打开，水蒸气就能进入抑压池内冷凝，减缓压力过大造成的危险。
The increased pressure increases the resistance to blood flowing down the jugular veins, and insufficient valves may allow deoxygenated blood to push back up the neck.
（这不就是“挣挣挣。屎”么。。。）急速上升的压力增加了颈动脉血液回流的阻力，并且没有完全闭合的膜瓣使得木有氧气的静脉血返回了脖子。
One of these valves - which maintain tank pressure during liftoff - broke during the last shuttle launch in November.
其中一个用于在发射时保持燃料箱压力的阀门，在11月的发射前破裂。
Ukraine says it had been forced to use reserves to maintain the pressure needed to move gas to European consumers before the valves were closed.
乌克兰说，他们被迫动用天然气储备来维持管道阀门被关闭前向欧洲的顾客运送天然气所必需的压力。
Valves can be operated by adjusting the air pressure in a chamber below the air channel.
阀可以通过调整操作在下面的空中通道室空气的压力。
Pressure relief devices are integral parts of the cylinder valves.
它们是钢瓶阀门整体的一个组成部分。
Maximum pressure differential required for valves with lever actuators should not exceed the limits listed.
采用杠杆执行器要求阀门的最大压差不能超过下表所列的极限。
Water hammer forces can create extremely large pressure waves that can damage piping, piping gaskets and valves.
水锤会产生巨大的压力冲击波，破坏管道，垫圈和阀门。
Proportional valves can also be used to control pressure.
比例阀也可以被用来控制压力。
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。
According to the work of a low pressure vacuum valves, ultra high vacuum valves and vacuum valves.
根据工作压力有低真空阀门、高真空阀门和超高真空阀门。
NOTE: Valves have individual pressure ratings and do not require de-rating for threaded connections.
注意：每个阀门有各自的压力等级，不需要为其螺纹连接而降低压力等级。
If two or more containers are manifolded, the vent valves should also be connected together to ensure pressure equilibration between all the containers.
如果把两个或更多容器并联在一起，排气阀也应该连接在一起，以确保所有容器之间的压力平衡。
If two or more containers are manifolded, the vent valves should also be connected together to ensure pressure equilibration between all the containers.
如果把两个或更多容器并联在一起，排气阀也应该连接在一起，以确保所有容器之间的压力平衡。
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