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鍍鋅通風管道加固段距離超過1250mm時，風管加固段距離也應超過1250mm。對于高壓系統軟件中鍍鋅通風管道的單咬口，還應采取加固或加固措施，避免壓槽膨脹開裂。 </p> <p> 鍍鋅通風管道連接有哪些規定？如何選擇法蘭和地腳螺栓，風管板拼接的咬縫應分開，不得有十字形拼接縫；鍍鋅通風管與法蘭連接時，如果法蘭原材料的規格型號和螺栓規格高于標準，會導致一定程度的原材料消耗；如果小于標準，則無法保證連接的密封性和抗壓強度。常用原材料的規格型號應符合相關要求。 </p> <p> 法蘭和地腳螺栓的選擇:鍍鋅通風管道中低壓系統軟件風管法蘭地腳螺栓與螺栓孔之間的距離不得超過150mm；高壓系統軟件的鍍鋅通風管道不得超過100mm。矩形框架風管法蘭的四角應有螺孔。采用加固法提高鍍鋅通風管道法蘭的抗壓強度時，可適當放開法蘭原材料標準的可用標準。無法蘭連接風管的冷軋鋼板法蘭相對高度按鍍鋅通風管道要求執行。 </p> <p> 鍍鋅通風管一般的壓槽連接方式如下:單咬口關鍵適用于環形風管的拼板方式和閉口痘痘；垂直咬口關鍵適用于圓形彎頭或接管的三通接頭咬入；角牙咬合關鍵適用于矩形框風管、彎頭、三通管、四通管的咬合；角壓槽常用于矩形框接管，有凈化處理規定的空調機組的角咬口，有時也用于彎頭或三通管的角咬口接頭；腳手架扣件咬口是矩形框風管的關鍵壓槽方式，有時用于彎頭、三通或四通管。 </p> </div> <div id="wrap-N">上一篇：<a href='/art1/85.html'>不銹鋼螺旋風管保溫效果如何確定？</a><br /> 下一篇：<a href='/art1/87.html'>不銹鋼風管的空氣流動及機械程度高</a></div>  <div class="clear"></div> </div> <div class="footer"> <div class="foot"> <ul> <li class="ft1"> <h2 style="text-indent:22px;">在線留言</h2> <form method="post" action="/index.php?c=guestbook" name="myform" id="myform" onsubmit="return checkform();" /> <input type="hidden" name="a" 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