French forged high temperature and high pressure socket welding steam reducing valve application case

Suitable for steam piping. Through the adjustment of the pressure reducing valve, the inlet pressure can be reduced to a certain required outlet pressure, when the inlet pressure or flow changes, the pressure reducing valve depends on the energy of the medium itself to automatically keep the outlet pressure fluctuating in a small range. Its role is to adjust the high pressure gas of the upstream pipeline, reduce the outlet pressure of the downstream pipeline, and automatically open by relying on the energy of the medium itself. When the medium in the upstream pipeline stops flowing, the decompression device composed of the balance hole plate, the throttling device, and the adjusting spring will keep the outlet pressure within a certain range (so as not to affect the normal operation of the downstream equipment).

The strength of forged steel parts is large. Forged steel is through cold forging, cold forging, forging, forging and other cold processing methods, so that the internal organization of the material is more dense, improve the structure of the material crystal, eliminate the gap, thereby greatly improving the strength and toughness of the material.

The steel casting is made by melting steel into hot metal at high temperature, pouring into the mold made in advance, cooling out of the mold, the material has more impurities, the material is brittle, the strength is poor, the internal stress is large, the internal organization is loose.

Valve material a105 is a common kind of steel, generally used to manufacture some high pressure, high temperature, large diameter valves. In general, because of its excellent performance, a105 steel has a wide range of applications in oil, natural gas, chemical, thermal power generation and other fields. So, what are the specific performance advantages of a105 steel? In what fields can it be fully applied?

On the one hand, although a105 steel has good corrosion resistance, it also needs to be timely anti-corrosion treatment during use to extend its service life.

On the other hand, when using high temperature and high pressure valves, due to the safety of life and property, the quality requirements for materials are very high, so it is necessary to choose reliable a105 steel, and carry out strict quality testing and monitoring.

Excellent mechanical properties

The valve is an important component to withstand pressure and external force, so the mechanical properties of the material are critical. a105 steel has relatively high strength and hardness, tensile strength and yield strength are high. In addition, a105 steel has the elongation and impact toughness to withstand a large amount of deformation and stretching.

Corrosion resistance

Corrosion prevention is a problem that all major fields attach great importance to, especially in the fields of Marine engineering, chemical industry, etc., the corrosion resistance of materials is very high. a105 steel has excellent corrosion resistance to dry gas, liquid or gas corrosion.

High temperature and high pressure performance

In oil, natural gas, thermal power generation and other high temperature and high pressure fields, the heat resistance and pressure resistance of the valve is crucial. The a105 steel has a very good performance in this respect, and can withstand the use of high temperature and pressure environments.

Easily machined

In addition to the advantages of performance, a105 steel has a big advantage is that it is easy to process, can be relatively simple welding, cutting and other processing processes, can manufacture a variety of shapes of valves.

A105N forged high temperature and high pressure socket welding steam reducing valve application case Working principle:

1. Using corrugated pipe or sleeve type film directly welded with the seat;

2. A guide sleeve is provided on the piston to guide the piston to the position;

3. Use the lever mechanism to make the diaphragm close to the main valve core;

4. Double acting actuator is used to control the main valve.

Ii. Structural characteristics:

1, with small volume, light weight characteristics.

2, the use of double acting actuator can achieve proportional adjustment.

3, can choose a variety of different types of seals.

4, can be equipped with electric or pneumatic operator according to user needs.

3. Material of main parts:

1, The main material is carbon steel plated with hard chromium.

2, sealing surface surfacing cobalt alloy wear-resistant layer.

3, Guide rod lifting nut is stainless steel.

In general, the valve material a105 not only has excellent mechanical properties, corrosion resistance, high temperature and high pressure performance and other characteristics, but also easy to process and form, and the scope of application is also very wide. However, in the process of use, it is also very important to pay attention to issues such as corrosion prevention and material quality.