Products News
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How to maintain the gate valve with worm gear?
After the worm gear gate valve is installed and put into work, it is necessary to pay attention to the maintenance of the worm gear gate valve. Only by doing a good job of daily maintenance and maintenance can we ensure that the worm gear gate valve maintains normal and stable work for a long tim...Read more -
Introduction to the use, main material and structural characteristics of the wafer check valve
Check valve refers to the valve that automatically opens and closes the valve flap by relying on the flow of the medium itself to prevent the backflow of the medium, also known as check valve, one-way valve, reverse flow valve and back pressure valve. The check valve is an automatic valve whose m...Read more -
Operation principle and installation and maintenance method of Y-strainer
1. Principle of Y-strainer Y-strainer is an indispensable Y-strainer device in the pipeline system for conveying fluid medium. Y-strainers are usually installed at the inlet of pressure reducing valve, pressure relief valve, stop valve (such as the water inlet end of indoor heating pipeline) or o...Read more -
Sand casting of valves
Sand casting: Sand casting commonly used in the valve industry can also be divided into various types of sand such as wet sand, dry sand, water glass sand and furan resin no-bake sand according to the different binders. (1) Green sand is a molding process method in which bentonite is used ...Read more -
Overview of Valve Casting
1. What is casting The liquid metal is poured into a mold cavity with a shape suitable for the part, and after it solidifies, a part product with a certain shape, size and surface quality is obtained, which is called casting. Three major elements: alloy, modeling, pouring and solidification. The ...Read more -
What are the main factors affecting the sealing performance of butterfly valves?
Sealing is to prevent leakage, and the principle of valve sealing is also studied from leakage prevention. There are many factors that affect the sealing performance of butterfly valves, mainly including the following: 1. Sealing structure Under the change of temperature or sealing force, the str...Read more -
Why do stainless steel valves also rust?
People usually think that the valve of stainless steel and will not rust. If it does, it may be a problem with the steel. This is a one-sided misconception about the lack of understanding of stainless steel, which can also rust under certain conditions. Stainless steel has the ability to resist a...Read more -
Application of butterfly valve and gate valve under different working conditions
Gate valve and butterfly valve both play the role of switching and regulating flow in pipeline use. Of course, there is still a method in the selection process of butterfly valve and gate valve. In order to reduce the depth of soil covering of the pipeline in the water supply network, generally l...Read more -
What are the differences and functions of single eccentric, double eccentric and triple eccentric butterfly valve
Single eccentric butterfly valve In order to solve the extrusion problem between the disc and the valve seat of the concentric butterfly valve, the single eccentric butterfly valve is produced. Disperse and reduce the excessive extrusion of the upper and lower ends of the butterfly plate and the ...Read more -
Check valve working principle, classification and installation precautions
How check valve works The check valve is used in the pipeline system, and its main function is to prevent the backflow of the medium, the reverse rotation of the pump and its driving motor, and the discharge of the medium in the container. Check valves may also be used on lines supplying auxiliar...Read more -
Y-strainer installation method and instruction manual
1.The filter principle Y-strainer is an indispensable filter device in the pipeline system for conveying fluid medium. Y-strainers are usually installed at the inlet of pressure reducing valve, pressure relief valve, stop valve (such as the water inlet end of indoor heating pipeline) or other equ...Read more -
Common fault analysis and structural improvement of Dual plate wafer check valve
1. In practical engineering applications, the damage of Dual plate wafer check valves is caused by many reasons. (1) Under the impact force of the medium, the contact area between the connecting part and the positioning rod is too small, resulting in stress concentration per unit area, and the Du...Read more
