型号:YJ41W/Y

公称压力:1.0MPa~4.OMPa适用温度:200℃

材质:CF8、CF3、CF8M、CF3M

氧气管路阀专用介绍

Introduction to special valve for oxygen pipeline

氧气管路专用阀门是根据氧气管网运行特点以及考虑氧气介质的易燃易爆的特性，以安全可靠和性能为设计原则，并参照中华人民共和国冶金工业部制定的《氧气安全规程》的规定而设计、制造的确保氧气管网安全运行的专用阀门。

阀门类型:按照冶金工业部《钢铁企业氧气管网的若干技术规定》的规定采用截止阀。

主体材料选用不锈钢或阻燃性的铜合金，密封面为本体或堆焊D802，其余内件采用不锈钢或铜合金;传动部位的润滑采用不可燃的润滑脂，并标有明显的禁油标记。

在结构上，支架采用全闭封,并有导除静电装置，阀杆上配有防尘帽。

我公司的氧气管路专用阀，自投放市场以来深受各大、中型钢铁厂、制氧厂、石化厂氧气管网的依赖!

The special valve i designed & produced so as to ensure sare operation of oxygen pipe networkon the basis of design principle of Safety, ReliabilityandOutstanding Performance according to operation nature of oxygen pipe network and infammable & explosive nature of oxygen medium,in which in accordance with Safety Regulation for Oxygen enacted by State Ministry of Metallurgical Industry.

Type of valve: Stop valve is employed in accordance with CertainTechnical Regulations for Pipe Network in SteelCorporations enacted by StateMinistry of Metallurgical lndustry.

Stainless steel or copperallay is employed for main material while Body or bead welding D802 is adopted for sealing surlace, in adition,stainlessor copper alloyis also employed in the remaining trims; furthermore,incombustible grease is used for lubrication of gear parts,in which is labeled with

Oil Forbidden.

As per its structure,Full seal isemployed in the stａnd with device of removing static electricity while dust-proof cap is equipped on the rod.

Our special valve has been well received bylarge/middle steel plants, oxygen factories and Petrochemical plants, in which is employed in theiroxygen pipe network.

氧气管路阀专用阀门特点

Characteristic

1、对于公称压力PNa1.6MPa、DN125~200采用内旁通结构;DN250-~50O采用带外旁通阀结构。其目的是减小阀前、阀后的压力差以避免高流速、高冲刷以及防止产生高温，从而保证了氧气管网的安全运行，同时也减小了操作力矩

2、介质流向:PN≥1.6MPa、DN≤100介质由阀瓣下方流入阀瓣上方(即低进高出)，DN≥125介质由阀瓣上方流入下方(高进低出)。对于DN≥125的阀门采用介质高进低出的流向，一方面是内旁通阀结构上的需要，另一方面由于介质压力的作用使阀门的关闭力大大减小。

3、该阀设有导静电安全装置,可避免因静电产生火花。

4、与普通截止阀相比，氧气管路用截止阀的支架部分采用全封闭式结构，且压紧填料时可以打开支架上的防护盖板，起到了防油防尘的作用。并有明显的禁油标记。

5、全部零件采用严格的脱指处理。

1. Inner bypass structure is adopted for the nominal pressure ranging PN≥1.6MIPa,DN125~2Q00;outer by pass valve for Dn250~5600, so as to reducepropost-vave pressure with a view to avoiding high strength, high scour and preventing from high temperature, with which guarantees safe operation foroxygen pipe network the moment reduces operating torque.

2.Flow diection for mediuom:.PN≥1.6MPa, Dn≤100 are to beused to the condition that the medium is flowed from underside to upside (i.e.lowintlowａnd high ouffow) whileDn≥125for the condition offiowing from upside to underside (i.e.igh inflow and low outlow), the reason for thelatter one can belisted as follows:Firstly, needs of innerbypass valve;Secondly , the onlofforce has been greatly reduced caused by medium pressure.

3.The valve is equipped with safe device for removing static electricity , with which can avoid producing fire by static electricity.

4.Compared with normal stop valve, the stａnd of this special valve adoptsfull-sealed structure, in which can open saieguarding cap on the standwhen pressing fillings with a view to preventing from oil & dust, the obvious symbol of Oil Forbidden is labeled therein.

5.The whole components has been degreased firmly.

安装、使用、维护注意事项Points to note (Installation, Operation & Maintenance)

1、安装时注意阀体上箭头方向与介质流动方向一致。

2、阉导线拧在两侧法兰的接地螺栓上，并将其接地，导除阀门上内的静电。

3、操作阀门时手轮顺时针旋转阀门关闭，逆时针旋转阀门开启。对带有内旁通结构的氧气阀开启时，先逆时针旋转手轮打开副阀瓣，待阀门前后压力差减小到O.3MAPa时，再继续旋转手轮打开主阀;对带有外旁通阀的氧气阀开启时，首先打开旁通阀，待阀门前后压力差减小到0.3MPa时，再打开主阀。关闭时先关主阀后关旁通阀。

4、该阀为全关、全开型。操作时应缓慢进行，并不得当调节阀用。

5、维护时传动部位涂不可燃的润滑脂。

6、其余事项按冶金工业部《氧气安全规程》和《钢铁企业氧气管网若干技术规定》执行。

本公司除生产氧气管道用截止阀外，还生产氧气管道用止回阀、球阀、仪表阀等阀类和配套法兰、管件。材质有不锈钢、铜合金两大类，欢迎广大用户根据需要选用。

1. When installing, the arrow direction on the valve body should accord with the flow direction of medium.

2.The conducting wire should be screwed to the ground bolts on both sides'flange and grounded so as to remove the static electricity on the valve.

3.CloselOpen when rotating hａnd wheel clockwise/anticlockwise:When opeming the oxygen valve equipped with inner bypass structure,rotates thehａnd wheel anticlockwise to open assistant disc until the pressure balance between the front and the back of the valve at 0.3MPa, then continues the rotating operation to open the main valve; as per outerbypass valve, opens bypassvave until he pressure balance at 0.3MAPa. then continues the rotatingthe main valve should be closed before bypass valve.

4.The valve employs full open/close: It should be operated slowly and can not be employed as regulating valve.

5.The incombustible grease should be smeared on the gear when maintaining.

6.The additional items can be operated in accordance with SafetyRegulation forOxygen and Certain Techica Regulations forPipe Network in SteelCorporations enacted by State Ministry of Metallurgical Industry.

Besides stop valve for oxygen pipeline, the valves such as the check valve , ball valve & meter valve for oxygen pipeline are also available in thecorporation while coupled flange & pipe fitting are supplied, in which stainless steel & copper alloy are used fortheir materal welcome to purchaseourproducts.

31/KAIGONG VALVE

应用规范 Application Norm

1、设计制造按GB12235-89

2、结构长度按GB12221-89

3、法兰尺寸按JB/T79-94

4、阀门检查和试验按GB13927

1. Design Manafacfure According to GB12235-89

2.Face to Face According to GB12221-89

3. Flange Dimension According to JB/T79-94

4. Valve Check and Test According to Gb13927

结构Structure

1、产品所有零件均经脱脂处理，严格禁油;2、产品采用密封包装，防止湿空气和杂质进入阀内;3、其它技术规范按《钢铁企业氧气管肉的若干技术规定》。