What standard is used for the nozzle of the pressure vessel, and the size of the small diameter pipe

The nozzle of the pressure vessel (i.e. the flange connection) clearly stipulates that the flange refers to HG T20592, and the pipe has GB T8163, GB6479, GB9948, GB5310 and stainless steel GB T14976 and GB13296

Pressure vessel, English: pressure vessel, refers to a closed equipment that contains gas or liquid and carries a certain pressure.

1. The manufacturing process of pressure vessel can generally be divided into: raw material acceptance process, marking process, cutting process, rust removal process, machining (including planing, etc.) process, rolling process, assembly process, welding process (product welding test plate), non-destructive testing process, opening and marking process, general inspection process, heat treatment process, pressure test process, and anti-corrosion process.

2. Different welding methods have different welding processes. The welding process is mainly determined according to the material, grade, chemical composition of the welded workpiece, the structural type of the weldment, and the welding performance requirements. First of all, it is necessary to determine the welding method, such as hand arc welding, submerged arc welding, tungsten argon arc welding, MIG/MAG welding, etc., there are many types of welding methods, which can only be selected according to the specific situation.

After determining the welding method, the welding process parameters are formulated, and the types of welding process parameters are different, such as hand arc welding mainly includes: electrode type (or grade), diameter, current, voltage, welding power supply type, polarity connection, welding layer, number of channels, inspection methods, etc.

The nozzle is a section of pipe processing, just use the standard of seamless pipe.

Summary. Hello dear! We'll be happy to answer for you. Pressure vessel small-bore pipe size A: Hello, <>

The outer diameter of the pipe is standard, please refer to HG20592-20635 with A, B series outer diameter... The extension length generally refers to the distance from the surface of the container to the sealing surface of the pipe flange. Of course, some drawings will set the distance between the center line of the container or the tangent of the head and the sealing surface of the flange as the extension length.

This depends on the customer's requirements.

Small-bore pipe size of pressure vessel.

Hello Danhui! We'll be happy to answer for you. Pressure vessel small-bore pipe size A: Hello, <>

The outer diameter of the pipe is standard, please refer to HG20592-20635 with A, B series outer diameter... The extension length generally refers to the distance from the surface of the container to the sealing surface of the pipe flange. Of course, there are also drawings that will tell the distance from the center line of the container or the tangent of the head to the sealing surface of the flange as the extension length.

This is based on the requirements of the model friend to answer the customer.

Hello, do you have a pressure vessel with a small diameter to take over?

Yes, oh, dear.

What about the diameter of the outlet takeover, the main takeover.

Pipes with a diameter greater than 250mm oh kiss.

Inspection and National Standards for Pressure Vessels Sealed containers that are subjected to gas or liquid pressure inside or outside and have high safety requirements. In the early days, it was mainly used in the chemical industry, and the pressure was mostly below 10 megapascals. With the advent of high-pressure production processes such as synthetic ammonia and high-pressure polyethylene, pressure vessels are required to have pressures of more than 100 megapascals.

With the development of chemical and petrochemical industries, the working temperature range of pressure vessels is getting wider and wider, the capacity is increasing, and some of them also require resistance to medium corrosion. Since the 60s of the 20th century, the development of nuclear power plants has put forward higher safety and technical requirements for reactor pressure vessels, thus promoting the further development of pressure vessels, which are widely used in various industrial sectors.

Extended information: Pressure vessels are mainly cylindrical, but also spherical or other shapes. According to the structural form, it can be divided into multi-layer pressure vessels, winding pressure vessels, grooved and belt-wound pressure vessels, hot-sleeved pressure vessels, forging and welding pressure vessels and thick plate coil welded pressure vessels.

Most pressure vessels are made of steel, but some are made of non-ferrous metals such as aluminum and titanium and non-metallic materials such as fiberglass and prestressed concrete.

The definition of pressure vessel is written in the solid capacity regulation, which is the law, and the corresponding standard:

gb150gb151

gb12337

jb/t4710

jb/t4731

jb4732

jb/t4734

jb/t4745

jb/t4755

jb/t4756

These 10 are the standards of pressure vessels corresponding to the solid capacity gauge, some of which are national standards and some are standards of the Ministry of Machinery.

The new version of the solid capacity regulation is the latest standard, but also the most authoritative, the supervision regulation is for the scope of special equipment is too wide, the regulations are too general, only the solid capacity regulation is specifically for pressure vessels.

"Regulations on the Safety Supervision of Special Equipment" (March 11, 2003 of the People's Republic of China Order No. 373), the regulations are the highest regulations, other standards are under the regulations, and the expression of pressure vessels in other standards is the scope of use of the corresponding standards. Definition of pressure vessel in the Regulations:

Pressure vessel refers to a fixed container and mobile container containing gas or liquid and carrying a certain pressure, the scope of which is specified as the maximum working pressure is greater than or equal to the gauge pressure), and the product of pressure and volume is greater than or equal to that of gas, liquefied gas and liquid with a maximum working temperature higher than or equal to the standard boiling point; Gases, liquefied gases and gas cylinders with a standard boiling point equal to or lower than 60 liquids with a nominal working pressure greater than or equal to gauge pressure, and the product of pressure and volume greater than or equal to the volume; oxygen chambers, etc.

Yes, "Regulations for the Safety and Technical Supervision of Fixed Pressure Vessels" and so on.

Serial number standard name.

Standard number. In lieu of the standard number.

1. Aluminum welded container.

jb/t 4734-2002

2. Reinforcement circle. jb/t 4736-2002

jb/t 4736-1995

3. Titanium welded containers.

jb/t 4745-2002

4. Heads for steel pressure vessels.

jb/t 4746-2002

jb/t 4729-1994

jb/t 4737-1995

jb/t 4738-1995

jb/t 4739-1995

jb 576-1964

5. Technical conditions for ordering steel welding rods for pressure vessels.

jb/t 4747-2002

6. Nickel and nickel-based alloy ** composite steel plate for pressure vessels.

jb/t 4748-2002

The conventional design is GB150 and the analytical design is JB4732. These 2 are basic. In addition, there are some standard specifications for various types of pressure vessels. As others answered.

Mainly TSGR004-2009, GB150, GB151 and other materials, welding, testing and other standards cited and approved by these standards.