Home >Side-opening PTFE valve
It is made of polytetrafluoroethylene (PTFE). The patented design utilizes mouldeling, self-sealing mechanism, no O-ring is inside therefore cross-contamination is eliminated. The connector of PTFE valve is parallel to the bag film. The difference to PTFE valve is that it does not have sampling cap. It can handle gases that there is not corrosive to PTFE. The valve can be used in VOCs analysis.
四氟侧向阀材质为聚四氟乙烯（PTFE）。四氟直通阀采用自密封结构，密封严密、无橡胶密封件与袋内气体接触、不污染气体样品。四氟侧向阀的导气管平行于袋薄膜平面，导气管外径6mm。旋转手柄使手柄垂直于袋薄膜平面则阀打开；再旋转90度使手柄平行膜平面，则阀关闭。四氟侧向阀开关方便迅速，封闭严密，体积小巧，导气管可充放气和抽真空。适合充装对聚四氟乙烯无腐蚀的无机、有机气体。由于袋内气体样品不接触硅橡胶密封垫，不会被污染，所以四氟侧向阀接口可用于分析精度要求高的低浓度气体样品采集和保存。该接口气体采样袋获国家专利。
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