Turn on back wash drainage valve (V-4) and air scour valve (V-2). Air scour lasts for a moment.
将反洗排水阀(V - 4)，空气洗净阀(V - 2)置于[开]，进行空气清洗并持续一段时间。
Introduces technical characteristics, structure and working principle of oil automatic cut off drainage valve, discusses the application of the valve in oil tanker areas.
介绍自动截油排水阀的技术特点、结构和工作原理，探讨该阀在油品罐区中的应用。
Water drainage hose, charging valve shall be kept open.
为排出槽内和排水管中的水，应使排水阀保持开状态。
Non-absorbent or water drainage at the end of the causes for the stuck valve, part of the blockage of water, high water or water leakage is too high.
水泵不吸水或不排水其原因多为底阀卡死，滤水部分淤塞，吸水高度太高或吸水漏气。
Gass lift drainage gas recovery by gas lift valve, from the ground to high-pressure gas injection stop injection Wells, the gas energy gradually lift shaft in the liquid, the well production capacity.
气举排水采气技术是通过气举阀，从地面将高压天然气注入停喷的井中，利用气体的能量逐级举升井筒中的液体，使井恢复生产能力。
In the steady state, the control room water, drainage same, the main valve opening constant outlet pressure stability.
在稳定状态下，控制室进水、排水相同，主阀开度不变，出口压力稳定。
When the valve outlet pressure to a pilot valve spring set pressure, pilot valve opens, the control room to the downstream drainage.
当阀门出口压力降到导阀弹簧设定压力时，导阀开启，控制室向下游排水。
Gass lift drainage gas recovery by gas lift valve, from the ground to high-pressure gas injection stop injection Wells, the gas energy gradually lift shaft in the liquid, the well production capacity.
气举是通过气举阀，从地面将高压气体注入停泵的井中，利用气体的能量举升井筒中液体，使井恢复生产能力。
Stem steam leakage from main stop valve and governor valve, drainage of front and rear steam sealing, etc shall all be directed into the conduit, and then be discharged into the gutter.
主汽门阀杆及调节汽阀阀杆漏气，前后汽封疏水等都引入集水管再排入地沟。
Flap valve is mainly installed in the end of drainage pipeline to prevent extra water flow backward.
拍门主要安装在排水管道的尾端，用于防止外水倒灌。
The automatic drainage in front of the ball valve closed;
将自动排水器前面的球阀关闭；
Simultaneously, the ordure draining is observed and once the drainage is completed, the valve is closed in time to stop water draining.
同时注意观察污物排放情况，一旦冲尽，及时关闭阀门，停止放水。
For the special work environment, the drainage system under mine has strict requirement to its device. In the Auto-drainage system, the controllability of shut-off valve is critical issue.
矿山井下排水系统因其特殊的工作环境，对其设备有着严格的要求，在自动化排水系统中，闸阀的可控性是关键性问题。
The discharge line must be installed to allow complete drainage of both the relief valve and the discharge line. The discharge line must not be restricted or reduced in size under any circumstances.
排泄管道必须能够完全容纳安全阀和排泄管的排泄物。在任何情况下，都不得限制或减少排泄管道的尺寸。
The body screw back into place, gently open the little front-end ball valve, using compressed air to the drainage system of impurities, water, oil draining;
将阀体拧回原位，前端球阀轻轻打开一点，用压缩空气将排水系统内的杂质、水油排空；
With the drainage bag, liquid can be drained simply by opening the adjusting valve.
使用时，需要排液则打开调节阀 即可；
Control room to stop the drainage, when the main valve control room pressure rise and close the main valve outlet pressure will not rise.
控制室停止排水，此时主阀控制室内压力升高并关闭主阀，出口压力不再升高。
The utility model relates to a set of water supply facilities which is provided with a fault feedback device for the internal drainage of a check valve.
本实用新型涉及一种加装止回阀内泄故障反馈装置的成套给水设备。
The utility model relates to a set of water supply facilities which is provided with a fault feedback device for the internal drainage of a check valve.
本实用新型涉及一种加装止回阀内泄故障反馈装置的成套给水设备。
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