資源描述：
《空調(diào)水禁忌手冊》由會員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在行業(yè)資料-天天文庫。
1、通風(fēng)與空調(diào)工程禁忌手冊禁忌1：鋼塑復(fù)合管采用螺紋連接時，其旋入深度及緊固力矩等不符合要求.根據(jù)國家標(biāo)準(zhǔn)GB/T9124－2000《鋼制管法蘭技術(shù)條件》的要求，對于平面和凸面的平焊鋼制管法蘭的材質(zhì)應(yīng)采用Q235A碳素結(jié)構(gòu)鋼，平面平焊法蘭使用范圍為：公稱壓力PN2.5MPa，最高溫度300℃；常用的凸面板式平焊鋼制管法蘭有關(guān)參數(shù)，如圖1-1及表1-1～表1-3所示。圖1-1凸面板式平焊鋼制管法蘭表1-1PN0.25MPa、PN0.6MPa凸面板式平焊鋼制管法蘭（mm）公稱通徑DN管子外徑A法蘭外徑D螺栓孔中心圓直徑
2、K螺栓孔徑L螺栓密封面法蘭厚度C法蘭內(nèi)徑B法蘭理論重量/kg數(shù)量n螺紋df10152017.221.326.97580905055654411444M10M10M1033384822212121418．022．027．50．310．350．5325324033.742.448.31001201307590100111414444M10M12M1258697833314161634．543．549．50．600．991．1750658060.376.188.9140160190110130150141418444
3、M12M12M168810812433316161861．577．590．51．281．612．60100125150114.3139.7168.3210240265170200225181818488M16M16M16144174199333182020116．0141．5170．52．853．864．23200250300219.1273.0323.932037544028033539518182281212M16M16M20254309363334222424221．5276．5327．56．238．15
4、10．53350400450355.6406.4457.0490540595445495550222222121616M20M20M20413463518444262830359．5411．0462．015．2618．1222．64500600508.0610.064575560070522262020M20M24568667453236513．5616．526．5835．70表1-2PN1.0MPa凸面板式平焊鋼制管法蘭（mm）公稱通徑DN管子外徑A法蘭外徑D螺栓孔中心圓直徑K螺栓孔徑L螺栓密封面法蘭厚度C法
5、蘭內(nèi)徑B法蘭理論重量/kg數(shù)量n螺紋df10152017.221.326.99095105606575141414444M12M12M1241465622214141618．022．027．50．530．590．8525324033.742.448.311514015085100110141818444M12M16M1665768433316181834．543．549．50．961．591．8250658060.376.188.9165185200125145160181818448M16M16M169911
6、813233320202061．577．590．52．433．483．95100125150114.3139.7168.3220250285180210240181822888M16M16M20156184211333222224116．0141．5170．54．524．936．53200250300219.1273.0323.934039544529535040022222281212M20M20M20266319370334242628221．5276．5327．58．5110．9213．303504004
7、50355.6406.4457.0505565615460515565222626161620M20M24M24429480530444303235359．5411．0462．020．2629．3230．56500600508.0610.067078062072526302020M24M27582682453842513．5616．537．8250．17表1-3PN1.6MPa凸面板式平焊鋼制管法蘭（mm）公稱通徑DN管子外徑A法蘭外徑D螺栓孔中心圓直徑K螺栓孔徑L螺栓密封面法蘭厚度C法蘭內(nèi)徑B法蘭理論重量/k
8、g數(shù)量n螺紋df10152017.221.326.99095105606575141414444M12M12M1241465622214141618．022．027．50．530．590．8525324033.742.448.311514015085100110141818444M12M16M1665768433316181834．543．549．50．961．591．82506580
