Pipeline installation in the tee, elbow, size head

In industrial pipe installation, tee, elbow and size head need to be calculated separately, and quota should be applied according to pipe fitting connection project.

In the installation of plumbing pipe, tee, elbow and size head do not need to be calculated, which has been comprehensively considered in the quota.

Flanges are divided into industrial pipes and civil pipes.

In industrial pipelines, whether the flange on the pipeline or connected with the valve, device, equipment, container flange need to be calculated separately, the unit of measurement is "pair"; Flanges connected to equipment or used for pipe blocking shall be measured in "pieces", but the quota shall be multiplied by a coefficient of 0.61.

In the plumbing pipe, where the flange is used for pipeline connection, it needs to be calculated separately, and the unit of measurement is "pair". Flange valve, the quota has included a pair of flange and bolts, nuts and gaskets required to connect the valve, flange does not need to be calculated.

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