What is the thickness specification of the national standard for galvanized JDG threading pipe?

JDG pipe is also known as "socketed set steel conduit wire pipe", so to view the JDG pipe wall thickness national standard standard, you can refer to the "Socket Tight Shaped Steel Conduit Wire Pipeline Construction and Acceptance Specification CECS 120-2007" standard.

1. The international standard wall thickness standard of JDG pipe, the allowable deviation is positive or negative, and the thickness reaches the above even if it is an international standard, but at present, there are more JDG pipes used in the market, and the open and dark compresses are available, and they can also be pre-embedded. The international standard wall thickness of JDG pipes is evenly between.

2. The outer diameter and wall thickness have been indicated on the model of JDG pipe; As:; Outer diameter + wall thickness.

The specifications of JDG galvanized conduit mainly include: 16, 20, 25, 32, 40, 50, during which the national standard thickness of 16 JDG conduit is, and the international standard thickness of other JDG conduit is.

The thickness specification of the national standard for galvanized JDG threading pipe is shown in the figure below

The full name of JDG galvanized line pipe: sleeve and set galvanized steel conduit, rigid metal flat conduit for electrical installation.

It is a kind of latest conduit for the protection of electrical circuits, and it is a breakthrough innovation in the field of building electrical using new materials and technologies. JDG galvanized wire pipe is divided into: tight-set, crimp-type connecting sleeve and its metal accessories are composed of screw fastening connection technology, without cross-grounding, welding and threading.

The exterior color is: silvery-white or yellow.

According to the pipe diameter, the specifications of JDG pipe are 16mm, 20mm, 25mm, 32mm, 40mm, 50mm, among which the thickness is mm, mm, mm, mm, mm, mm, 5 kinds of wall thickness specifications. The standard thickness of the JDG pipe thickness corresponds to the following:

Pipe diameter model: 16, thickness, wall thickness promised error: ;

Pipe diameter model: 20, thickness, wall thickness promised error: ;

Pipe diameter model: 25, thickness, wall thickness promised error: ;

Pipe diameter model: 32, thickness, wall thickness promised error: ;

Pipe diameter model: 40, thickness, wall thickness promised error: ;

Pipe diameter model: 50, thickness, wall thickness promised error: ;

JDG pipe national standard wall thickness requirements:

The main specifications of JDG pipes are: 16, 20, 25, 32, 40, 50, during which the national standard thickness of 16 JDG threading pipes is, and the national standard thickness of other JDG threading pipes is.

Threading SC galvanized steel pipe.

Implemented GB T3091-2015 "Welded Steel Pipes for Low-Pressure Fluid Transportation".

The allowable deviation of the wall thickness is 10. The pipe ends are connected with threads.

The wall thickness of the steel pipe is thicker, such as the wall thickness of the general steel pipe SC15 and SC20, and the wall thickness of SC15 and SC20 when the threaded connection is.

JDG pipe specifications are available, and the thickness of each specification is also different.

The wall thickness of JDG pipe is as follows:

20jdg pipe wall thickness:

25jdg tube:

32jdg tube:

40jdg tube:

50jdg tube:

Sleep easily and usher in today's laughter.

According to the standard specification:

The thickness of the JDG pipe is that there can be a positive and negative difference, that is, the thickness of the pipe should reach above.

The wall thickness of JDG pipe is:

The JDG pipe national standard production design standard is based on:

Conduit systems for cable management Part 1 General requirements.

GB Conduit Systems for Cable Management Part 21: Special Requirements for Rigid Conduit Systems.

After reading it, you will find it strange why these 2 standards do not state the thickness standard???

In fact, the allowable deviation of JDG pipe specification model wall thickness is indicated according to the standard "CECS 120-2007 for the construction and acceptance of sleeved steel conduit wire pipeline".

The national standard thickness of 16 JDG threading pipe is, and the other 20 25 32 40 50JDG threading pipe national standard thickness is.

The thickness of the wire threading steel pipe SC galvanized steel pipe national standard: JGJ 16-2008 stipulates that the thickness of the metal threading conduit laid in wet places or buried shall not be less than, and the thickness of the threading pipe shall not be less than that of the exposed jujube or concealed in dry places. The national standard thickness of galvanized steel pipe is not applicable.

According to the electrical wiring of the domestic project, the welded steel pipe of GB T3091-2008 is selected according to the industry standard, that is, the DN ordinary steel pipe.

SC20 (DN20) wall thickness, wall thickness allowable error 10%.

SC25(DN25) wall thickness mm, wall thickness allowable error 10%.

SC32 (DN32), SC40 (DN40) wall thickness, wall thickness allowable error 10%.

SC50(DN50) wall thickness mm, wall thickness allowable error 10%.

Summary. Dear, I'm glad to answer for you, the national standard thickness of SC galvanized wire pipe for wires:

The thickness of the national standard error is +12%, -15%.

The thickness of the national standard error is +12%, -15%.

The national standard thickness of SC galvanized wire pipe for wire threading.

Dear, I'm glad to talk about the answer for you, the thickness of the national standard upgrade of the national standard for threading wires: the national standard thickness error +12%, -15% national standard thickness error +12%, -15%.

Fire hose SC20 hot-dip galvanized pipe. National standard thickness.

Wait a minute, I'll help you find out.

and 15's. That's it.

The inner diameter of the fire galvanized pipe is 15 mm, the ordinary wall thickness is mm, and the thickened wall thickness is mm. The fire galvanized pipe with an inner diameter of 20 mm is a common wall thickness of millimeters, and the thickened wall thickness is millimeters. The diameter of the inner rock row is 32 mm for fire galvanized pipes, the ordinary wall thickness is mm, and the thickened wall thickness is 4 mm.

The inner diameter of the fire galvanized pipe is 40 mm, the ordinary wall thickness is millimeters, and the thickened wall thickness is millimeters.

Connection method of hot-dip galvanized pipe for fire electric SC.

20's. Please wait a moment and help you find out.

Thank you. There are three main connection methods when connecting, namely wire turning type, welding type and rolling groove type. 1. If the wire type is used, the thread buckle cannot be completely in contact with the hoop of the steel pipe, otherwise it is likely to be loose.

Before connecting, it is necessary to measure whether the wall thickness of the steel pipe can reach the standard thickness from tung to wire. 2. If the welded method is used for connection, then the nozzle position of the steel pipe needs to be docked well, and the thickness of the two nozzles needs to be consistent, otherwise it is very likely that the thickness of the welding mouth will be uneven. 3. The use of the rolling groove to connect is to smooth the inner wall of the groove part of the nozzle, so as to effectively reduce the resistance of the groove, and to adjust the axial distance between the steel pipe and the groove to maintain a horizontal state, and to form the groove at the same time.