<sub id="vrxrn"></sub>
      <address id="vrxrn"><delect id="vrxrn"><output id="vrxrn"></output></delect></address>

      <address id="vrxrn"><listing id="vrxrn"><mark id="vrxrn"></mark></listing></address>

        <form id="vrxrn"></form>

        <thead id="vrxrn"><delect id="vrxrn"></delect></thead>
          <address id="vrxrn"></address>
        <cite id="vrxrn"><var id="vrxrn"><ruby id="vrxrn"></ruby></var></cite>

        <sub id="vrxrn"><dfn id="vrxrn"></dfn></sub><sub id="vrxrn"><listing id="vrxrn"><mark id="vrxrn"></mark></listing></sub>

            <address id="vrxrn"><var id="vrxrn"><output id="vrxrn"></output></var></address>

            <sub id="vrxrn"><nobr id="vrxrn"></nobr></sub><font id="vrxrn"><var id="vrxrn"><ruby id="vrxrn"></ruby></var></font>
            <address id="vrxrn"><listing id="vrxrn"><menuitem id="vrxrn"></menuitem></listing></address>
            <form id="vrxrn"><th id="vrxrn"><progress id="vrxrn"></progress></th></form>

              <sub id="vrxrn"><var id="vrxrn"><ins id="vrxrn"></ins></var></sub>

              <sub id="vrxrn"><var id="vrxrn"><ins id="vrxrn"></ins></var></sub>
                <address id="vrxrn"></address>
              <address id="vrxrn"></address><sub id="vrxrn"><dfn id="vrxrn"></dfn></sub><sub id="vrxrn"><dfn id="vrxrn"><mark id="vrxrn"></mark></dfn></sub>

                <address id="vrxrn"></address>

                <thead id="vrxrn"><var id="vrxrn"><ins id="vrxrn"></ins></var></thead>
                <form id="vrxrn"><dfn id="vrxrn"><mark id="vrxrn"></mark></dfn></form><address id="vrxrn"><dfn id="vrxrn"><ins id="vrxrn"></ins></dfn></address>

                <address id="vrxrn"><var id="vrxrn"><ins id="vrxrn"></ins></var></address>

                <var id="vrxrn"><ruby id="vrxrn"><em id="vrxrn"></em></ruby></var><address id="vrxrn"><dfn id="vrxrn"><mark id="vrxrn"></mark></dfn></address>

                <sub id="vrxrn"><dfn id="vrxrn"></dfn></sub>

                <sub id="vrxrn"><dfn id="vrxrn"><ins id="vrxrn"></ins></dfn></sub>
                <sub id="vrxrn"><dfn id="vrxrn"></dfn></sub>

                  <address id="vrxrn"><listing id="vrxrn"><mark id="vrxrn"></mark></listing></address>
                    <address id="vrxrn"></address>

                    法蘭的連接

                    2020-05-21 11:18:49 1273

                    1、法蘭連接應保持同一軸線,其螺栓孔偏差一般不超過孔徑的百分之5,并應保證螺栓自由穿入。法蘭的連接螺栓應為同一規格,安裝方向要一致,擰緊螺栓時應對稱均勻地進行。

                    2、不得使用厚度不等的斜墊圈來彌補法蘭的不平行度。不得使用雙層墊圈。當大口徑墊圈需要拼接時,不得用平口對接,應采用斜口搭接或迷宮形式。

                    3、為便于裝、拆法蘭,緊固螺栓,法蘭平面距支架和墻面的距離不應小于200mm。

                    4、擰緊螺栓時應對稱交叉地順序進行,以保證墊片均勻受力。

                    5、如遇下列情況,螺栓、螺母應涂以二硫化鉬、石墨機油或石墨粉以便于日后拆卸: 1)不銹鋼、合金鋼螺栓和螺母;2)管道設計溫度高于100℃或低于0℃;3) 露天裝置;4)有大氣腐蝕或腐蝕性介質。

                    6、使用銅、鋁、軟鋼等金屬墊片,安裝前應進行退火處理。

                    7、高溫或低溫管道的法蘭連接螺栓,在試運時一般應按下列規定進行熱緊或冷緊:1)熱緊或冷緊,應在保持工作溫度24h后進行;2)緊固管道螺栓時,管道內壓力應根據設計壓力確定,當設計壓力小于6MPa時,熱緊內壓力為0.3MPa;當設計壓力大于6MPa時,熱緊內壓力為0.5MPa。冷緊一般應卸壓進行。熱、冷緊的緊固要適度,要有安全措施。

                    8、法蘭連接不允許直接埋地。埋地管道的法蘭連接處要有檢查井,如果要埋設,要采取防腐蝕措施?!?/p>


                    電話咨詢
                    產品展示
                    新聞中心
                    一鍵導航
                    国语刺激对白勾搭视频在线观看|日韩AV免费无禁网站|无码精品视频在线观看

                          <sub id="vrxrn"></sub>
                        <address id="vrxrn"><delect id="vrxrn"><output id="vrxrn"></output></delect></address>

                        <address id="vrxrn"><listing id="vrxrn"><mark id="vrxrn"></mark></listing></address>

                          <form id="vrxrn"></form>

                          <thead id="vrxrn"><delect id="vrxrn"></delect></thead>
                            <address id="vrxrn"></address>
                          <cite id="vrxrn"><var id="vrxrn"><ruby id="vrxrn"></ruby></var></cite>

                          <sub id="vrxrn"><dfn id="vrxrn"></dfn></sub><sub id="vrxrn"><listing id="vrxrn"><mark id="vrxrn"></mark></listing></sub>

                              <address id="vrxrn"><var id="vrxrn"><output id="vrxrn"></output></var></address>

                              <sub id="vrxrn"><nobr id="vrxrn"></nobr></sub><font id="vrxrn"><var id="vrxrn"><ruby id="vrxrn"></ruby></var></font>
                              <address id="vrxrn"><listing id="vrxrn"><menuitem id="vrxrn"></menuitem></listing></address>
                              <form id="vrxrn"><th id="vrxrn"><progress id="vrxrn"></progress></th></form>

                                <sub id="vrxrn"><var id="vrxrn"><ins id="vrxrn"></ins></var></sub>

                                <sub id="vrxrn"><var id="vrxrn"><ins id="vrxrn"></ins></var></sub>
                                  <address id="vrxrn"></address>
                                <address id="vrxrn"></address><sub id="vrxrn"><dfn id="vrxrn"></dfn></sub><sub id="vrxrn"><dfn id="vrxrn"><mark id="vrxrn"></mark></dfn></sub>

                                  <address id="vrxrn"></address>

                                  <thead id="vrxrn"><var id="vrxrn"><ins id="vrxrn"></ins></var></thead>
                                  <form id="vrxrn"><dfn id="vrxrn"><mark id="vrxrn"></mark></dfn></form><address id="vrxrn"><dfn id="vrxrn"><ins id="vrxrn"></ins></dfn></address>

                                  <address id="vrxrn"><var id="vrxrn"><ins id="vrxrn"></ins></var></address>

                                  <var id="vrxrn"><ruby id="vrxrn"><em id="vrxrn"></em></ruby></var><address id="vrxrn"><dfn id="vrxrn"><mark id="vrxrn"></mark></dfn></address>

                                  <sub id="vrxrn"><dfn id="vrxrn"></dfn></sub>

                                  <sub id="vrxrn"><dfn id="vrxrn"><ins id="vrxrn"></ins></dfn></sub>
                                  <sub id="vrxrn"><dfn id="vrxrn"></dfn></sub>

                                    <address id="vrxrn"><listing id="vrxrn"><mark id="vrxrn"></mark></listing></address>
                                      <address id="vrxrn"></address>