1.不要损坏密封表面或密封表面的密封线。平面密封的密封性能取决于上下端面；液压密封件的密封性能取决于与孔或轴相关的唇线。这些零件由石墨、橡胶、塑料、纤维等柔软有弹性的特殊材料制成，容易损坏。因此，在运输、安装和储存过程中，更需要给予特殊的保护和照顾。一旦损坏，往往会给密封部件留下很大的隐患；

2.安装时注意平衡和对称。将密封件放在靠近有效密封面(或唇线)的位置。系统投入使用后，需要做好紧固密封的进一步观察和善后工作，防止系统工作过程中因工况变化(如增压)而出现微泄漏而导致的崩溃。

3.不要强行安装VAREM计量泵，施工时不要野蛮粗暴。大动作的强制加载，必然会破坏密封件原有的预制结构，就像把预制混凝土打碎填充到需要的部位，必然会导致灾难。这类密封件的安装一定要非常小心谨慎，埋设一定要循序渐进；

What should be paid attention to when installing seals on metering pump?

1. Do not damage the sealing surface or the sealing line of the sealing surface. The sealing performance of the plane seal depends on the upper and lower face; the sealing performance of the hydraulic seal depends on the lip line related to the hole or shaft. These parts are made of graphite, rubber, plastic, fiber and other soft and elastic special materials, which are easy to damage. Therefore, special protection and care are needed during transportation, installation and storage. Once damaged, it will leave a great hidden danger to the sealing parts;

 2. Pay attention to the balance and symmetry during the installation. Place the seal close to the effective sealing surface (or lip line). After the system is put into use, it is necessary to do a good job of further observation and aftercare of the fastening seal to prevent the collapse of the system caused by micro leakage due to the change of working conditions (such as pressurization).

3. Do not force the installation of varem metering pump, and do not be rude during construction. The forced loading of large action will inevitably destroy the original prefabricated structure of the seal, just like breaking and filling the prefabricated concrete to the required position, which will inevitably lead to disaster. The installation of such seals must be very careful, and the embedding must be gradual;