What does XS stand for in chemical pipelines?

In chemical pipelines, XS represents the pipe number of the pipe wall thickness, which is a method of engineering to represent the thickness of the pipeline, and the specific corresponding thickness can be referred to Table 3 of GB T 28708-2012.

FO is an accident open, and the others should be logistics codes, and there is no unified provision. Please refer to the material code description table on the home page for the corresponding material name.

Does the landlord know now? Seek advice.

XS generally refers to fire hydrant pipes.

YF is a pressurized waste water pipe.

XH is also the meaning of fire hydrant pipe, most of the time it is taken from the first letter of Chinese pinyin.

In the 11G101-1 table, JZL is: Tic-tac-toe beam. However, in the [example] under the table 11G101-3, it is said that JZL7(5B) is the No. 7 main beam.

The specifications of each company are different, but now the general ones are basically common in the country: the plane is PL, the top surface is CL, the ground is FL, the façade is EL, the electrical is DS, the sample is DD, the details are XX and so on. You can use a translation tool to translate into English and then use the first letter of the English as the code for the number.

This is the symbol of the chemical flow chart, you can't guess the symbol of someone else! God, all drawing symbols are compiled by the company itself, and must be noted in the "legend" in accordance with the regulations. If anyone can guess it, they will become immortals!!

Except, of course, canonical symbols, e.g. dn - nominal diameter; – Celsius; n — Nitrogen.

It is better to find the original drawings, otherwise you need to ask a very experienced chemical engineer to judge what the fluid is in each pipe based on experience.

Hello! All drawing symbols are compiled by the enterprise itself, and should be indicated in the "legend" in accordance with the regulations: dn - nominal diameter!

Except, of course, canonical symbols; – Celsius; Whoever can guess it, then he can become a god, and judge what the fluid in each pipeline is based on experience This is the symbol of the chemical flow chart, for example!;

Nitrogen. It's better to find the original drawings! God, you can't guess other people's symbols like that!; n, otherwise a very experienced chemical engineer is called.

There are many valves, pipeline symbols and abbreviated names provided in the following **, there should be what you need, such as: valve general industry terms and abbreviations CNG refueling mother station process industrial valve knowledge needle valve fire valve gate valve and so on.

A lot of them are specialized tutorials in this area.

You can follow the map according to your needs.

You don't even have a Chinese annotation for what you wrote.

Think about the abbreviation of Hanyu Pinyin, this is not a foreign thing at all.

Water supply pipe-j, if divided into high and low areas, it is usually represented by initials, that is, high area -g, low area -d.

Drain pipe-w, which indicates sewage. There is also -f, which is wastewater. It is rare to have -p to denote it.

Fire hydrant pipe-xh.

Automatic sprinkler pipe -Z or -Zp

Storm water pipes - y

Heating pipe-r, generally the solid line represents the water supply pipe, and the dotted line represents the return pipe.

Pressure drain - py

Condensate pipe-n.

Pipe riser - l

In addition the model letters of the device:

Q - Flow rate or air volume.

h-Head. n-power.

p-pressure. QW-Submersible Pump.

Other valves, appliances and the like are distinguished by graphics.

JL-water supply pipe; WL-sewer; yl-storm sewer; RJL - Hot Feed Water; RHL - Hot return water.

SCH40 and SCH30 represent the table number of the tube. STD stands for standard weight tubes.

1. The pipe table number (SCH) is the ratio of the design pressure to the allowable stress of the material at the design temperature multiplied by 1000 and rounded. Namely.

sch .=p/[ó]t×1000

where p—design pressure, mpa;

t—allowable stress of the material at the design temperature, mpa.

2. The method of expressing the wall thickness by the weight of the pipe stipulated by MSS and ANSI in the United States divides the wall thickness of the pipe into three types:

A. The standard weight tube is represented by STD;

b. The thickened tube is represented by XS;

c. The extra-thick pipe is represented by XXS.

These are series of pipe wall thicknesses and diameters, SCH40 is two inch pipe wall thickness.

These are foreign standards, and domestic ones are generally marked with withstand voltage grades.

Foreign trade knowledge of steel pipes For example: What does X SCH40(STD) mean? Refers to the material, this material is similar to the national standard Q235B, E should refer to the groove, 1"It's an inch.