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1 1 4 id brass tube

author:MF manufacturerstime:2022-03-12 19:43:30

Summary:

In the water supply and drainage design,The label of the pipe diameter is the most important link,Most designers did not distinguish between different types of pipelines,Use“DN”Or a labeling form,This article is based on various typesPipe related specification,Summarize the diameter representation of commonly used water supply pipes,Reference designers。


one、Concrete and reinforced concrete tube

(1 1 4 id brass tube)

according to《Concrete and reinforced concrete drain》(GB11836-2009)Regulations,Concrete pipe“CP”Express,Reinforced concrete pipe“RCP”Express,Reinforced concrete pipe for top construction“DRCP”Express,Press external pressure load grading,Concrete tube is divided intoⅠ、ⅡTwo levels,Reinforced concrete tube is divided intoⅠ、Ⅱ、ⅢLevel three。Concrete and reinforced concrete drain pipe diameterD0Express,As shown below。

(1 1 4 id brass tube)1 1 4 id brass tube

picture1 Concrete and reinforced concrete drain


For easy designers,The inner diameter and wall thickness of the common reinforced concrete tube are listed below.。


surface1Common reinforced concrete drainage specifications

1 1 4 id brass tube


(1 1 4 id brass tube)two、Welded steel pipe


according to《Welding steel pipe size and unit length weight》(GB/T 21835-2008)Regulations,The outer diameter of the welded steel pipe is divided into three series:series1、series2Series3。series1A general series,It belongs to the recommended selection series,series2Is a non-universal series,series3Is a small special special series。Welding steel pipe diameterD×Wall thickness。


For easy designers,The outer diameter and wall thickness of the general series welded steel pipe are listed below.。

surface2Universal series welding steel pipe specifications

1 1 4 id brass tube


three、Polyethylene(PE)Tube

(1 1 4 id brass tube)

according to《Polyethylene(PE)Structural wall pipe system First1part:Polyethylene double wall corrugated pipe》(GB/T 19472.1-2004)Regulations,Its pipe diameter should be in a nominal sizeDN/ID(Nominal size related to inner diameter)Express,As shown below。


1 1 4 id brass tube

picture2Polyethylene double wall bellows label

(1 1 4 id brass tube)

according to《Polyethylene(PE)Structural wall pipe system First2part:Polyethylene winding structure wall tube》(GB/T 19472.2-2004)Regulations,Its pipe diameter should be in a nominal sizeDN/ID(Nominal size related to inner diameter)Express,As shown below。

1 1 4 id brass tube

picture3Polyethylene winding structural wall tube


Common polyethylene double wall corrugated pipes and winding structural wall tubes are shown in the table below:

(1 1 4 id brass tube)surface3Polyethylene(PE)Tube common specifications

1 1 4 id brass tube


Four、Ductile iron pipe


according to《Water and gas ductile iron pipe、Pipe fittings and accessories》(GB/T 13295-2019)Regulations,Ductile iron pipes can be divided into sliding-in-type flexible interfaces according to the interface type、Mechanical flexible interface、Self-anchor interface and flange interface, etc.。Its pipe diameter should be in a nominal sizeDNExpress,Specific dimensions can be referred to the table selection。

(1 1 4 id brass tube)surface4Common specifications of ductile iron tubes

1 1 4 id brass tube


Fives、Polypropylene tube


according to《Polypropylene pipe system for hot and cold water First2part:Pipe》(GB/T 18742.2-2017)Regulations,Polypropylene pipes are divided into tube seriesS6.3,S5,S4、S3.2、S2.5、S2,The pipe diameter is in the name of the nominaldn×Nominal wall thicknessenExpress。

(1 1 4 id brass tube)1 1 4 id brass tube

picture4Polypropylene tube label example

(1 1 4 id brass tube)

Common polypropylene tubes are shown in the table below:

surface5Common specifications of polypropylene tubes

1 1 4 id brass tube(1 1 4 id brass tube)


With new technology、New material update,All kinds of pipelines are endless,When the labeling involves new pipes,It is recommended to correspond to the specification of the pipe.、Standard and product manual, etc.。

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