一、型号与规格核对问题​

1、 Model and specification verification issues

在阀门安装项目中，常出现安装人员未仔细核对阀门型号、规格便匆忙安装，导致安装后阀门无法满足系统运行需求，如流量、压力控制等方面出现偏差，严重时需拆除重新安装，造成时间和成本浪费。部分安装人员认为设计图纸上标注清晰，无需再次核对，且核对过程繁琐，存在侥幸心理。而另一部分严谨的人员则坚持必须核对。​

In valve installation projects, it is common for installation personnel to hastily install valves without carefully checking the valve model and specifications, resulting in the valves being unable to meet the system's operational requirements after installation, such as deviations in flow and pressure control. In severe cases, they may need to be removed and reinstalled, causing time and cost waste. Some installation personnel believe that the markings on the design drawings are clear and do not need to be checked again, and the verification process is cumbersome, with a mentality of taking chances. And another group of rigorous personnel insist on checking. ​

良工阀门建议，在阀门安装之前，务必仔细核对所用阀门的型号、规格是否与设计相符。这一步骤虽看似简单，但至关重要。可建立双人复核制度，安装人员完成初次核对后，由技术负责人再次确认，确保无误，从源头避免因型号、规格错误引发的安装问题。​

Lianggong Valve suggests that before installing the valve, it is necessary to carefully check whether the model and specifications of the valve used are consistent with the design. This step may seem simple, but it is crucial. A dual person review system can be established. After the installation personnel complete the initial verification, the technical leader will confirm again to ensure accuracy and avoid installation problems caused by model and specification errors from the source. ​

二、适用性检查争议​

2、 Applicability check dispute

对于阀门是否能在要求条件下应用，安装团队内部常存在争议。一些人觉得阀门只要外观无损坏，能正常安装即可，忽视了其在特定条件下的适用性，如温度、压力、介质腐蚀性等。而经验丰富的人员深知，若阀门不适用，运行中可能出现泄漏、损坏等严重问题。​

There is often controversy within the installation team regarding whether the valve can be applied under the required conditions. Some people think that as long as the appearance of the valve is undamaged and can be installed normally, they ignore its applicability under specific conditions such as temperature, pressure, and corrosiveness of the medium. Experienced personnel are well aware that if the valve is not suitable, serious problems such as leakage and damage may occur during operation. ​

根据阀门的型号和出厂说明书，全面检查对照该阀门可否在要求的条件下应用。良工阀门在每台阀门出厂时均配备详细说明书，明确标注适用范围。安装团队应组织专项培训，让每位成员了解如何依据说明书判断阀门适用性，同时可邀请良工阀门技术专家进行现场指导，提高安装人员对阀门适用性判断的准确性。​

According to the valve model and factory manual, conduct a comprehensive inspection to compare whether the valve can be used under the required conditions. Lianggong Valve is equipped with detailed instructions for each valve at the factory, clearly indicating the scope of application. The installation team should organize specialized training to enable each member to understand how to judge valve applicability based on the instruction manual. At the same time, skilled valve technicians can be invited to provide on-site guidance to improve the accuracy of valve applicability judgment by installation personnel. ​

三、阀门吊装方式问题​

3、 Valve lifting method issue

阀门吊装过程中，因吊装方式不当导致阀杆与手轮损坏的情况时有发生。部分施工人员为图方便，将绳索拴在手轮或阀杆上进行吊装，认为这样操作简单快捷。然而，这种做法极易使阀杆与手轮承受过大拉力，造成变形或损坏。​

During the valve lifting process, it is common for the valve stem and handwheel to be damaged due to improper lifting methods. Some construction workers, for the sake of convenience, tie ropes to handwheels or valve stems for lifting, believing that this operation is simple and fast. However, this approach can easily cause excessive tension on the valve stem and handwheel, resulting in deformation or damage. ​

良工阀门强调，阀门吊装时，绳索应绑在阀体与阀盖的法兰连接处。可制作专门的吊装夹具，适配不同规格阀门的法兰，确保绳索稳固连接，避免与手轮、阀杆接触。同时，对吊装人员进行专业培训，考核合格后方可参与阀门吊装作业，规范吊装操作流程。​

Lianggong Valve emphasizes that when lifting the valve, the rope should be tied to the flange connection between the valve body and the valve cover. Special lifting fixtures can be made to adapt to flanges of different specifications of valves, ensuring stable connection of ropes and avoiding contact with handwheels and valve stems. At the same time, professional training should be provided to the lifting personnel, who can only participate in valve lifting operations after passing the assessment, and the lifting operation process should be standardized.

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四、水平管道上阀门安装方向争议​

4、 Controversy over the installation direction of valves on horizontal pipelines

在水平管道上安装阀门时，阀杆的安装方向存在争议。部分人员认为阀杆安装方向对阀门使用影响不大，选择向下安装以节省空间。但实际上，阀杆向下安装不利于操作与维护，且容易积聚杂质，加速阀杆腐蚀。​

There is controversy over the installation direction of the valve stem when installing valves on horizontal pipelines. Some personnel believe that the installation direction of the valve stem has little impact on the use of the valve, and choose to install it downwards to save space. However, in reality, installing the valve stem downwards is not conducive to operation and maintenance, and it is easy to accumulate impurities, accelerating valve stem corrosion. ​

良工阀门明确要求，在水平管道上安装阀门时，阀杆应垂直向上。在施工图纸设计阶段，就应明确标注阀门安装方向，安装人员严格按照图纸施工。对于空间有限的特殊情况，可采用特殊设计的阀门，如加长阀杆或采用直角传动装置，确保阀杆处于便于操作和维护的位置。​

Lianggong Valve explicitly requires that when installing valves on horizontal pipelines, the valve stem should be vertically upward. During the construction drawing design phase, the installation direction of valves should be clearly marked, and installation personnel should strictly follow the drawings for construction. For special situations with limited space, specially designed valves can be used, such as elongated valve stems or right angle transmission devices, to ensure that the valve stem is in a position that is easy to operate and maintain. ​

五、连接方式问题​

5、 Connection method issue

安装阀门时，强行对口连接的情况屡禁不止。一些施工团队为赶工期，在管道与阀门接口存在偏差时，采用生拉硬拽的方式强行连接。这种做法会使阀门内部部件受力不均，导致密封损坏、阀门变形等问题，严重影响阀门使用寿命和系统运行安全。​

When installing valves, the situation of forcibly connecting them is repeatedly prohibited. Some construction teams, in order to meet the deadline, forcibly connect pipelines and valve interfaces by pulling and pulling them. This approach can cause uneven stress on the internal components of the valve, leading to seal damage, valve deformation, and other issues, seriously affecting the service life of the valve and the safety of system operation. ​

安装阀门时，严禁采用生拉硬拽的强行对口连接方式。在安装前，仔细测量管道与阀门接口尺寸，确保误差在允许范围内。若出现偏差，应采用合适的调整工具和方法进行修正，如使用管道调整器、重新切割打磨管口等。同时，加强施工过程监督，对违规操作及时制止并予以处罚。​

When installing valves, it is strictly prohibited to use forced connection methods such as pulling and pulling. Before installation, carefully measure the size of the pipeline and valve interface to ensure that the error is within the allowable range. If there is a deviation, appropriate adjustment tools and methods should be used for correction, such as using pipeline adjusters, re cutting and polishing pipe openings, etc. At the same time, strengthen the supervision of the construction process, promptly stop and punish illegal operations. ​

六、明杆闸阀安装环境争议​

6、 Environmental controversy surrounding the installation of Minggan gate valves

对于明杆闸阀的安装环境，部分人员认为即使安装在地下潮湿处，只要做好防腐措施即可。但实际情况是，地下潮湿环境复杂，普通防腐措施难以完全阻止阀杆锈蚀，一旦阀杆锈蚀，会影响阀门的正常开启和关闭。​

For the installation environment of the rising stem gate valve, some personnel believe that even if it is installed underground in a damp place, as long as anti-corrosion measures are taken, it is sufficient. But in reality, the underground humid environment is complex, and ordinary anti-corrosion measures are difficult to completely prevent valve stem corrosion. Once the valve stem is corroded, it will affect the normal opening and closing of the valve. ​

良工阀门建议，明杆闸阀不宜装在地下潮湿处。若因工程特殊需要必须安装在潮湿环境，应选用特殊材质（如不锈钢材质）的明杆闸阀，并设置专门的防潮、排水设施，定期对阀杆进行保养维护，涂抹防锈油脂，检查锈蚀情况，确保阀门正常运行。

Lianggong Valve suggests that rising stem gate valves should not be installed in damp underground locations. If it is necessary to install in a humid environment due to special engineering requirements, a rising stem gate valve made of special materials (such as stainless steel) should be selected, and specialized moisture-proof and drainage facilities should be set up. The valve stem should be regularly maintained, rust proof grease should be applied, and rust should be checked to ensure the normal operation of the valve.

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