In the industrial pipeline engineering 2.5MPa, to install 1 pay with blind flange of steel flange DN100 (ARC), the installation fee is?This is the 2011 national installation cost selection question. A.18.3 B.21.96 C.25.01 D.31.72
2.5Mpa for medium pressure, the implementation of low pressure fixed by 1.2, so 30*1.2=36, because of flange blind plate, it is included in the single flange installation, entitled "a pair", so Xu Xu replaced "one", then "36*0.61=21.96"..... Can not figure out the title, obviously a pair of installation fees, why is the last piece?.
BMedium pressure flange, perform low-pressure corresponding quota by a factor of 1.2Flange installation, in the calculation of the piece, the flange installation fixed by 0.61 timesApply quota 8-1471; installation fee =30*1.2*.61=21.96
Apply quotas. General installation works are regulated by fixed rates plus rates.
