关于阀门链接面的安装事项，良工山东销售提醒大家装置端部选用螺纹衔接的阀门，应使螺纹拧入阀门的深浅适合，螺纹拧入过深压紧阀座，将影响阀座和闸板的杰出配合，拧入过浅，将影响接头的密封可靠性，简单引入走漏。一起螺纹密封材料应选用要四氟乙烯生胶带货密封胶，留意不要把密封材料给到阀门内腔。
As for the installation of the valve connecting surface, Lianggong valve Chongqing Sales Center reminds everyone that the valve with threaded connection shall be selected at the end of the device, and the depth of the thread screwed into the valve shall be suitable. If the thread is screwed too deep and compresses the valve seat, it will affect the excellent cooperation between the valve seat and the gate, and if it is screwed too shallow, it will affect the sealing reliability of the joint and simply introduce leakage. Teflon raw tape sealant shall be selected as the thread sealing material, and attention shall be paid not to give the sealing material to the inner cavity of the valve.
关于法兰端部衔接的阀门，要找正法兰的衔接面，封面垂直于管线，且螺栓孔要对正。阀门法兰应与管道法兰平行，法兰空隙适中，不该呈现错口、歪斜等表象，法兰间心垫片应放置正中，不能偏斜，螺栓应对称均匀拧紧。避免在阀门装置时强行衔接拧紧，发生一个附加残余力。

For the valve connected at the flange end, first align the connecting surface of the flange, the cover is perpendicular to the pipeline, and the bolt hole shall be aligned. The valve flange shall be parallel to the pipe flange, the flange gap shall be moderate, and the appearance of staggered mouth and skew shall not be presented. The center gasket between flanges shall be placed in the center without skew, and the bolts shall be tightened symmetrically and evenly. Avoid forcibly connecting and tightening the valve device, resulting in an additional residual force.
装置前要彻底铲除管子内壁及外部螺纹的污物;铲除有碍介质活动和能够影响设备工作的毛刺、异物等，在管子衔接前吹净管道中的污垢、渣及其他杂物。避免损害阀门的密封面或堵塞阀门。
Before installation, the dirt on the inner wall and external thread of the pipe shall be completely removed; Remove burrs and foreign matters that hinder media activities and can affect equipment operation, and blow out dirt, slag and other sundries in the pipeline before pipe connection. Avoid damaging the sealing surface of the valve or blocking the valve.
装置焊接端部衔接阀门，应先组对点焊后阀门两头焊口，敞开阀门，然后按焊接工艺卡施焊焊缝，焊后对焊缝外观及内在焊缝质量进行查看，保证无气孔、夹渣、裂纹等，需求时应对焊缝进行射线或超控查看。
When connecting the valve at the welding end of the device, first assemble the welded junctions at both ends of the valve after spot welding, open the valve, and then weld the weld according to the welding process card. After welding, check the appearance and internal weld quality of the weld to ensure that there are no pores, slag inclusions, cracks, etc. the weld shall be shot or overridden when required.
较重阀门的装置
Device for heavier valves
装置较重的阀门时(DN>100)，应用起吊东西或设备，起吊绳索应系在阀门的法兰或支架上，不该系在阀门的手柄式阀杆上，避免损坏阀门。
For valves with heavy devices (DN > 100), lifting objects or equipment shall be used. The lifting rope shall be tied to the flange or support of the valve, not to the handle valve stem of the valve, so as to avoid damaging the valve.
以上就是上海良工阀门重庆销售给大家分享的阀门安装指南，了解更多可访问http://www.jnlgvf.com
The above is the valve installation guide shared by Shanghai Lianggong valve Chongqing Sales Center. For more information, please visit http://www.jnlgvf.com