<rp id="bd9pj"><object id="bd9pj"><blockquote id="bd9pj"></blockquote></object></rp>

    <rp id="bd9pj"><object id="bd9pj"><blockquote id="bd9pj"></blockquote></object></rp>
    <em id="bd9pj"></em>
    <button id="bd9pj"><object id="bd9pj"></object></button>

    1. <rp id="bd9pj"><object id="bd9pj"><blockquote id="bd9pj"></blockquote></object></rp>

        <rp id="bd9pj"></rp>
      1. <button id="bd9pj"><object id="bd9pj"></object></button>
        <tbody id="bd9pj"></tbody>
        <li id="bd9pj"><acronym id="bd9pj"></acronym></li>
        <dd id="bd9pj"></dd>
        <form id="bd9pj"></form>
        1. <li id="bd9pj"><acronym id="bd9pj"></acronym></li>

          <legend id="bd9pj"></legend>
          1. <th id="bd9pj"><kbd id="bd9pj"><sup id="bd9pj"></sup></kbd></th>
          2. <rp id="bd9pj"><object id="bd9pj"><blockquote id="bd9pj"></blockquote></object></rp>
              <rp id="bd9pj"><ruby id="bd9pj"></ruby></rp>
              <s id="bd9pj"><samp id="bd9pj"></samp></s>
            1. <span id="bd9pj"></span>
              <button id="bd9pj"><acronym id="bd9pj"></acronym></button><rp id="bd9pj"></rp>

              <button id="bd9pj"><object id="bd9pj"></object></button>
              1. <s id="bd9pj"><object id="bd9pj"></object></s>
              2. <button id="bd9pj"><acronym id="bd9pj"></acronym></button><rp id="bd9pj"></rp><s id="bd9pj"><object id="bd9pj"></object></s>

                  1. <th id="bd9pj"><track id="bd9pj"><dl id="bd9pj"></dl></track></th>
                    <ol id="bd9pj"><object id="bd9pj"><blockquote id="bd9pj"></blockquote></object></ol>
                    1. <rp id="bd9pj"><acronym id="bd9pj"><input id="bd9pj"></input></acronym></rp>

                      <dd id="bd9pj"></dd><button id="bd9pj"></button><th id="bd9pj"><track id="bd9pj"><dl id="bd9pj"></dl></track></th>

                      <rp id="bd9pj"><object id="bd9pj"><input id="bd9pj"></input></object></rp>
                      <dd id="bd9pj"></dd>
                      <tbody id="bd9pj"></tbody>

                    2. <rp id="bd9pj"></rp>
                      <rp id="bd9pj"><object id="bd9pj"></object></rp>

                      1. <em id="bd9pj"><acronym id="bd9pj"></acronym></em>

                        <button id="bd9pj"><acronym id="bd9pj"></acronym></button>

                        <dd id="bd9pj"></dd>

                      2. <button id="bd9pj"><object id="bd9pj"><input id="bd9pj"></input></object></button>
                        1. <nav id="bd9pj"></nav>
                        2. <em id="bd9pj"><object id="bd9pj"><input id="bd9pj"></input></object></em>
                        3. <rp id="bd9pj"></rp>
                        4. <dd id="bd9pj"><track id="bd9pj"></track></dd>

                           
                          上海方工閥門制造有限公司
                          SHANGHAI FANGGONG VALVES Manufacturing Co., Ltd.
                          400-820-4057
                          訂購電話:
                          15年閥業專業生產企業
                          前沿科技 精工品質 你身邊的閥門廠家! 
                          微信
                          NEW CENTER
                          新聞中心
                          您的當前位置:????
                          科普控制儀表閥類安作用和用途
                          來源:http://www.80-h.com/news.html | 作者:fanggong | 發布時間: 682天前 | 3059 次瀏覽 | 分享到:

                          閥類安作用和用途可分為以下幾種:


                          排氣閥:排除管道中多余的氣體,提高管道使用效率及降低能耗;

                          分流閥:分配、分離或混合管道中的介質;

                          安全閥:防止管道或裝置中的介質壓力超過規定數值,從而達到安全保護的目的。

                          止回閥:防止管道中介質倒流。

                          截斷閥:接通或截斷管道中的介質流通。

                          調節閥:調節介質的壓力、流量等參數。

                          現在主要介紹一下自立式調節閥和氣動調節閥。


                          日本在线不卡