中文在线视频-狼人综合网-中文字幕视频一区-天天干天-男女av在线-秋霞午夜电影-自拍偷拍日韩-国产久草视频-欧美三级在线看-色婷婷综合久久-丁香花五月天-波多野结衣有码-日韩色图视频-韩国久久久久-男女超爽视频-免费h片在线观看-自拍第二页-一本黄色片-国产一级大片在线观看-天堂五月天-色欲久久久天天天精品综合网-男人操女人b视频-国产一级做a-女性私密整形视频-播放美国生活大片-黄页网址大全免费-华人av在线-日韩综合夜夜香内射-下面好紧…爽-欧美激情片一区二区

Hydraulic Control Valve summary

Hydraulic control valve consists of valve body, valve cover, diaphragm, spring, hydraulic control valve is a kind of water is used since embellish type body, do not need to add oil lubrication of mechanical valve, hydraulic control valve with both can and form a complete set of solenoid valve and can be used alone, valve and filtering mechanism to facilitate troubleshooting, maintenance convenience, low prices, reliable use etc, especially in water conservancy irrigation have broad prospects.Water control valve is widely used in high-rise buildings, water supply and drainage industry to the drainage pipeline.

Water control valve according to the use of different purposes, functions and places can be evolved into a remote control ball float valve, pressure reducing valve, slow closing check valve, flow control valve, pressure relief valve, hydraulic electric control valve, pump control valve, etc..Water control valve to install a filter, and should be easy to sewage requirements.

Hydraulic Control Valve model selection

• The hydraulic control valve used in the engineering is qualified by the manufacturer, complete with all kinds of marks, and the technical data meet the requirements of products.

  According to the functional requirements, select the type of valve, and then according to the pipeline transmission medium, temperature, building standards and owners to requirements, to determine the valve body and sealing parts of the material.Common valve body materials are cast iron, copper iron, copper, plastic and so on.Common sealing surface and lining materials are copper alloy, plastic, steel, hard alloy, rubber and so on.The valve body material shall match the piping material.

  The nominal pressure of the valve has 0.6, 1.0, 1.6, 2.5 and 4.0 Mpa and other different levels, the pipeline conveying medium, its working pressure should be less than the nominal pressure value of the valve.

  The installation of hydraulic control valves in the project shall have enough space for management, operation, installation and maintenance, and shall meet the requirements of the pipeline for valves.

  When the pipeline is connected with a flange, the hydraulic control valve connected with a flange should be used.When the pipeline is connected by groove type, the hydraulic control valve connected by groove type should be used.

  The hydraulic control valve should be set in the medium one-way flow pipeline.

  The direction of the arrow on the main valve body of the hydraulic control valve must be consistent with the flow direction of the pipeline system.

  There should be no gas blocking or gas blocking in the pipe section connected with the hydraulic control valve.An automatic exhaust valve should be set in the highest gas storage section of the pipe network.

  When the valve is installed horizontally, the valve cover and stem should be up.When installed vertically, the valve cover and stem should face outward.

  The valve should be tested for strength and tightness before installation.

Hydraulic Control Valve standard

1.JB/ T10644-2006 "Hydraulic Control Valve"

The use of hydraulic control principle, through different structures to achieve the purpose of multi-purpose control valve general name.
It includes: remote control ball float valve, adjustable pressure reducing valve, slow closing silencing check valve, flow control valve, pressure relief/holding valve, hydraulic electric control valve, pump control valve, differential pressure bypass balance valve, emergency shut off valve.

2.CJ/T219-2005 "hydraulic control valve"

Using the principle of hydraulic control, with tubes and different components of the different control system of the general name of the valve.

3.CECS144-2002 Hydraulic Control Valve Application Design Code

The use of hydraulic control principle, through different structures to achieve the purpose of multi-purpose control valve general name.