The Important Application Of The Valve

  1.The application of valves for hydropower stations and the construction of power stations in China are proceeding towards large-scale development. Therefore, large-diameter and high-pressure safety valves, pressure reducing valves, globe valves, gate valve, butterfly valves, emergency block valves and flow control valves, spherical seal instruments are required. 

2.Metallurgy Application Valves and aluminum oxides in the metallurgical industry mainly require the use of wear-resistant slurry valves (in flow-type shut-off valves) and regulating steam traps. The steel-making industry mainly needs to use metal sealed ball valves, butterfly valve and oxidation ball valves, shutoff flash and four-way reversing valves;

3.The application of marine valves, followed by the development of offshore oilfields, the amount of valves required by the ocean flat hair also gradually increased. Marine platforms need to shut off ball valves, check valves, and multi-way valves;

4.Food and medical applications valves, the industry mainly need to use stainless steel ball valve, plastic ball valve and butterfly valve.

The Main Application Of Valve Analysis

  The classification of valve is variety, such as gate valve, globe valve, check valve, butterfly valve, ball valve and so on. So the application of valve is different.

1) The oil refinery equipment and the valves required for the oil refinery equipment are mostly pipeline valves, mainly gate valves, globe valves, check valves, safety valves, ball valves, butterfly valve, and steam traps. Among them, the demand for gate valves accounts for about 80% of the total number of valves. 

2) Chemical fiber equipment, chemical fiber products are mainly polyester, acrylic, vinylon three categories. The ball valve and jacket valve of the valve are used .

3) Acrylonitrile equipment. The device generally requires the production of standard valves, mainly gate valves, globe valve, check valves, ball valves, traps, needle-shaped globe valves, plug valves, among them, the gate valve accounts for about 75% of the total valve;

4) Synthetic ammonia plant. At present, domestic ammonia synthesis plants mainly use gate valves, globe valves, check valves, traps, butterfly valves, ball valve, diaphragm valves, regulating valves, needle valves, safety valves, and high-temperature and low-temperature valves.

Do You Really Understand The Ball Valve?

Globe valve (ball valve): the valve (sprung) is driven by the valve stem and rotates around the axis of the ball valve. It can also be used for fluid regulation and control, in which the hard-sealed V-type ball valve has a strong shear force between the V-shaped ball core and the metal seat of the hardfacing alloy, and it is particularly suitable for containing fiber and tiny solid particles and other media.

The multi-pass ball valve can not only flexibly control the confluence, diverting flow and flow direction switching of the medium on the pipeline, but also close any one of the channels and connect the other two channels.

This type of valve should generally be installed horizontally in the pipeline. The ball valve is divided into pneumatic ball valve, electric ball valve and manual ball valve according to the driving mode. GS-C25 bellow seal globe valve is a common one.

The Brief Introduction Of Gate Valve

  The opening and closing part of the gate valve is a gate and the pressure is between 1.6 MPa and 4.0 MPa.

The direction of movement of the gate is perpendicular to the direction of the flow. The gate valve can only be fully opened and fully closed, and it cannot be adjusted or throttled. The ram has two sealing surfaces. The two sealing surfaces of the most commonly used mode ram valves form a wedge, and the wedge angle varies with the valve parameters, typically 50, and 2°52′ when the medium temperature is not high. 125LB OS & Y gate valve is one of the common one.

Wedge gate valve gate can be made into a whole, called the rigid gate; it can also be made of a slight deformation of the gate, in order to improve its craft and make up for the deviation of the sealing surface angle in the process. This kind of brake The board is called a flexible shutter.

Do you know the structural characteristics of the butterfly valve?

  The features of cast steel and stainless steel butterfly valve are as follows:

1 The unique design of three-way eccentricity enables frictionless transmission between the sealing surfaces, extending the service life of the valve.

2 Butterfly valve is elastically sealed by torque.

3 Ingenious wedge design makes the valve more tight and automatic sealing function, sealing surface between the compensation, zero leakage.

4 It is a small size, light weight, lightweight operation, easy installation.

5 According to user requirements, pneumatic and electric devices can be configured to meet the needs of remote control and program control.

6 Replacement Parts Materials can be applied to various media and can be lining anti-corrosion.

7 Diversified continuous structures: clips, flanges, butt welds.

What Is The Difference Between Electric Ball Valve And Electric Butterfly Valve?

Electric ball valve and electric butterfly valve are the more commonly used valves. They are universal in some occasions, and they can only be used one of them in some conditions. The difference between the two lies mainly in the structure and switching principle. The electric ball valve is the evolution of the plug valve, and the opening and closing part is a sphere. The opening and closing parts of the electric butterfly valve are disc type left and right open.

The butterfly valve is slightly less tight than the ball valve, but in the large-diameter valve, the butterfly valve has unique advantages over the ball valve; when adjusting the flow rate, the butterfly valve does not have a large adjustment range, and the V-shaped ball valve regulates accurately. In addition, ball valves have advantages over butterfly valves in high pressure piping.