衬氟管道尺寸.doc

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1、衬氟管道、管件标准1.直管1.1.1直管端用突面法兰结构型式和尺寸应分别符合下图。公称通径钢管规格T密封面E螺孔中心距K法兰外径D四氟管外径B四氟管厚度t孔径ADN（mm）NPS(inch)251￠32×36085115252213211/4￠38×370100140302264011/2￠48×3.580110150402.535502￠57×3.595125165502.5456521/2￠76×4115145185682.563803￠89×4130160200803741004￠108×41501

2、802201003941255￠133×41802102501253.51181506￠159×4.520524028515041422008￠219×6265295340205419725010￠273×6320350395260525030012￠325×7365400445310530035014￠377×7425460505360535040016￠426×847551556541054001.1.2法兰符合HG-20592-2009系列为主，可根据情况选用活套法兰。1.1.3更具不同的工艺要求，

3、采用钢铁件，四氟壁厚大于2mm以上。制作长度L一般标准为不超过4m1.2碳钢管件1.2.1弯头的结构型式和尺寸应分别符合图A.2.1、表A.2.1。公称通径铁坯规格T密封面E螺孔中心距K法兰外径D衬里厚度t孔径A中心高L1中心高L2DN（mm）NPS(inch)251￠32×3608511532090553211/4￠38×370100140326100554011/2￠48×3.5801101503.53411065502￠57×3.5951251653.543120656521/2￠76×411514

4、518546013075803￠89×4130160200473140801004￠108×41501802204921601051255￠133×418021025041171801151506￠159×4.52052402854.51411801302008￠219×6265295340619521015525010￠273×6320350395624925018030012￠325×7365400445729730023035014￠377×7425460505734935026040016￠426

5、×847551556583944002901.2.2三通的结构形式和尺寸应符合下图。公称通径铁坯规格T密封面E螺孔中心距K法兰外径D衬里厚度t孔径A中心高L1中心高L2DN（mm）NPS(inch)251￠32×3608511532090903211/4￠38×3701001403261001004011/2￠48×3.5801101503.534110110502￠57×3.5951251653.5431201206521/2￠76×4115145185460130130803￠89×413016020

6、04731401401004￠108×41501802204921601601255￠133×418021025041171801801506￠159×4.52052402854.51411801802008￠219×6265295340619521021025010￠273×6320350395624925025030012￠325×7365400445729730030035014￠377×7425460505734935035040016￠426×847551556583944004001.2.3异

7、径管的结构形式和尺寸应符合下图。公称通径铁坯规格T密封面E螺孔中心距K法兰外径D衬里厚度t孔径A中心高L1中心高L2DN（mm）NPS(inch)25/1￠32×3608511532012012032/11/4￠38×37010014032640/11/2￠48×3.5801101503.53450/2￠57×3.5951251653.54365/21/2￠76×411514518546080/3￠89×4130160200473100/4￠108×4150180220492125/5￠133×41802

8、102504117150150150/6￠159×4.52052402854.5141200/8￠219×62652953406195250/10￠273×63203503956249300/12￠325×73654004457297300300350/14￠377×74254605057349400/16￠426×84755155658394