1. <li id="xf7qc"></li>

        <dl id="xf7qc"><ins id="xf7qc"></ins></dl>
          <dl id="xf7qc"></dl>
          1. <output id="xf7qc"></output>
            1. <dl id="xf7qc"><ins id="xf7qc"></ins></dl>

                1. <output id="xf7qc"></output>
                    <dl id="xf7qc"><ins id="xf7qc"></ins></dl>
                    <span id="xf7qc"><thead id="xf7qc"><delect id="xf7qc"></delect></thead></span>
                    <output id="xf7qc"></output>
                    <dl id="xf7qc"><ins id="xf7qc"><thead id="xf7qc"></thead></ins></dl>
                  1. <dl id="xf7qc"><ins id="xf7qc"></ins></dl>

                    <form id="xf7qc"><s id="xf7qc"></s></form>

                    <output id="xf7qc"><track id="xf7qc"><em id="xf7qc"></em></track></output>
                  2. <dl id="xf7qc"></dl><dl id="xf7qc"><ins id="xf7qc"></ins></dl>
                    <menuitem id="xf7qc"><bdo id="xf7qc"><video id="xf7qc"></video></bdo></menuitem>

                    <dl id="xf7qc"></dl>
                    <input id="xf7qc"><font id="xf7qc"><td id="xf7qc"></td></font></input>

                    <dl id="xf7qc"><ins id="xf7qc"></ins></dl>

                      1. <li id="xf7qc"></li>
                      2. <form id="xf7qc"><ins id="xf7qc"></ins></form>
                        <dl id="xf7qc"></dl>
                      3. 气动三通球阀的工作原理和特点

                        发布时间:2017/12/18[返回上级]
                        气动三通球阀是阀门的一种,可分为L型和T型。L型三通球阀用于介质流向的切换,能使相互垂直的两个通道连通(如流向图L型)。三通球阀?#35805;?#37319;用两阀座结构,亦可根据用户要求采用四阀座结构。四阀座密封三通球阀具有造型美观、结构紧凑合理,它不仅可实现介质流向的切换,也可使三个通道相互连通,同时也可关闭?#25105;?#36890;道,使另外两个通道连通,灵活控制管路中介质的合流或分流。