PFA衬里不锈钢取样阀采用密封连接形式设置于四氟手套箱上方，四氟手套箱体在操作方位设有可快速开关闭视窗门，后方设有氮气进出口，连接氮气气源后进行箱体内部及取样瓶内空间清扫，安装瓶体稳妥后小心按压顶部操作手柄，使物料溫和而有控制地流入取样瓶内。当获得足够的样品时，松开顶部按压操作手柄，以确定安全停止了取样过程。通过耐酸碱橡胶手套将取样瓶从阀体上安全取下，并装好取样瓶盖，可进行再次氮气空间清扫，以进—步保护操作人员，最终从四氟手套箱内取出取样瓶完成工艺取样工作。

     The PFA lined stainless steel sampling valve is installed above the Teflon glove box by a sealed connection. The Teflon glove box is equipped with a window door that can be quickly opened and closed in the operation direction, and a nitrogen inlet and outlet is set in the rear. After connecting the nitrogen gas source, the inside of the box and the space in the sampling bottle are cleaned. After the bottle body is installed stably, carefully press the top operation handle to make the medium flow into the sampling bottle gently and controlled. When sufficient medium is obtained, release the top press operating handle to make sure that the sampling process is stopped safely. The sampling bottle can be safely removed from the valve body by wearing acid and alkali resistant rubber gloves, and the sampling bottle cap can be installed. The space can be cleaned again by nitrogen to further protect the operators. Finally, the sampling bottle can be taken out from the Teflon glove box to complete the process sampling.

优势：Advantages
1.管道在线防护取样。
Online protective sampling on Pipeline.
2.操作过程中物料在箱体惰性环境中快速完成取样，确保试验测试数据的正确性。
During the operation, the medium can be quickly sampled in the inert environment of the box to ensure the correctness of the test data. 
3.四氟手套箱对实施采样人员安全保护。
The Teflon glove box provides safety protection for sampling personnel .
4.四氟手套箱设有透明观察窗、观察控制适量取样。
The TEflon glove box is equipped whits a transparent observation window to observe and control the appropriate sampling.
5.对取样瓶洁净状况进行保护、防止外界环境污染。
Protect the clean condition of sampling bottles to prevent external environmental pollution.