1、安装时应仔细核对标志是否与使用要求相符。2、检查填料是否压紧，应保

1, the installation should carefully check mark is consistent with the requirements. <br>2, to check whether the compression fillers, the filler should ensure tightness, without prejudice to the stem spin <br>transfer or lifting. <br>3, the product should be in dry and ventilated place when not to bump percussion handling and installation. <br>4, the valve chamber and remove dust debris within the pipe should be installed so as not to affect the sealing performance. <br>5, when the stem threads to work to maintain good lubrication.

1, installation should carefully check whether the logo is in line with the use requirements.<br> 2, check whether the filler is pressed, should ensure the sealing of the filler, but not to prevent the valve stem spin<br>Turn or lift.<br>3, this product should be placed in a dry, ventilated place to move and install do not hit.<br>4, in the installation should be removed in the valve cavity and pipe dust debris so as not to affect the sealing performance. 5, when the valve stem thread to maintain good lubrication.

1. Installation should be carefully checked whether the logo is in accordance with the requirements of use.<br>2. Check whether the packing is compacted or not. The sealing of the packing should be ensured, but the rotation of the valve stem should not be hindered.<br>Turn or rise or fall.<br>3. This product should be put in dry and ventilated place to transport and install without collision and knock.<br>4. During installation, dust and debris in valve chamber and pipeline should be removed to avoid affecting sealing performance.<br>5. When working, the valve stem threads should be well lubricated.<br>