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Differences and commonalities between gate valves, ball valves, and butterfly valves
The difference between gate valve, ball valve and butterfly valve: 1. Gate valve There is a flat plate in the valve body which is perpendicular to the flow direction of the medium, and the flat plate is lifted and lowered to realize opening and closing. Features: good airtightness, small fluid re...Read more -
What is the difference between handle lever butterfly valve and worm gear butterfly valve? How should choose?
Both the handle lever butterfly valve and the worm gear butterfly valve are valves that need to be operated manually, commonly known as manual butterfly valves, but they are still different in use. 1. The handle lever rod of the handle lever butterfly valve directly drives the valve plate, and th...Read more -
Difference between soft seal butterfly valve and hard seal butterfly valve
Hard seal butterfly valve Hard sealing of butterfly valve refers to that both sides of the sealing pair are made of metal materials or other hard materials. The sealing performance of this kind of seal is poor, but it has high temperature resistance, wear resistance and good mechanical performanc...Read more -
Applicable occasions for butterfly valve
Butterfly valves are suitable for pipelines that transport various corrosive and non-corrosive fluid media in engineering systems such as coal gas, natural gas, liquefied petroleum gas, city gas, hot and cold air, chemical smelting, power generation and environmental protection, and are used to a...Read more -
Introduction to the application, main material and structural characteristics of the wafer dual plate check valve
Wafer dual plate 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. Wafer dual plate check valve...Read more -
The working principle and construction and installation points of rubber seated butterfly valve
The rubber seated butterfly valve is a kind of valve that uses a circular butterfly plate as the opening and closing part and rotates with the valve stem to open, close and adjust the fluid channel. The butterfly plate of the rubber seated butterfly valve is installed in the diameter direction of...Read more -
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 -
Development History of China’s Valve Industry (3)
The continuous development of the valve industry (1967-1978) 01 Industry development is affected From 1967 to 1978, due to the great changes in the social environment, the development of the valve industry has also been greatly affected. The main manifestations are: 1. The valve output is sharply...Read more
