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What Precautions need to be take when install the valves
When the valve is installed, in order to keep metal, sand and other foreign matter from invading the valve and damaging the sealing surface, it is necessary to set a filter and a flush valve; in order to keep the compressed air clean, an oil-water separator or an air fil...Read more -
What are the protective effects of valve painting
Cast iron and carbon steel valves are usually sprayed with different varieties and thicknesses of paint to obtain a good protective effect. These valves are generally used for water, oil, steam, etc., which are in direct contact with metal surfaces and are prone to serio...Read more -
What are the commonly used coatings on valve surfaces
1. Body epoxy coating Corrosion resistance Epoxy-coated steel bars have good corrosion resistance, and the bond strength with concrete is significantly reduced. It is suitable for industrial working conditions in humid environments or aggressive media. strong adhesion Th...Read more -
Valve Casting Process – Sand Casting
Sand casting commonly used in the valve industry can also be divided into: wet sand, dry sand, water glass sand and furan resin self-hardening sand according to different binders. (1) Green sand is a molding process method with bentonite as a binder. Its characteristics ...Read more -
Valve casting process – precision casting
In recent years, valve manufacturers have paid more and more attention to the appearance quality and dimensional accuracy of castings. Because good appearance is the basic requirement of the market, it is also the positioning benchmark for the first machining process. T...Read more -
Do you know the cryogenic valve
Types of cryogenic valves The types of cryogenic valves include cryogenic globe valve, cryogenic ball valve, cryogenic emergency shut-off valve, cryogenic safety valve, cryogenic check valve, cryogenic pressure reducing valve, cryogenic filter, cryogenic electric ball va...Read more -
Why do cryogenic valves use long neck bonnets
Valves suitable for medium temperature -40℃～-196℃ are called low temperature valves, and such valves generally use long-necked bonnets. The long-neck bonnet is used to stipulate that the cryogenic valve includes cryogenic emergency shut-off valve, cryogenic globe valve, cryogenic check valve, LN...Read more -
Why the valve is Galvanized Plating,Cadmium plating,Chrome Plating,Nickel plating
Galvanized Plating Zinc is relatively stable in dry air and is not easy to change color. In water and humid atmosphere, it reacts with oxygen or carbon dioxide to form oxide or alkaline zinc carbonate film, which can prevent zinc from continuing to be oxidized and play a protective role. Zinc is ...Read more -
Why do valve surfaces need coatings
Corrosion is one of the important elements that cause valve damage. In valve protection, valve corrosion protection is an important issue to consider. For metal valves, surface coating treatment is the best cost-effective protection method. 1. Shielding After the metal surface is coated with pain...Read more -
What is The Difference Between Triple Eccentric Butterfly Valve, Double Eccentric Butterfly Valve, Single Eccentric Butterfly Valve And Centerline Butterfly Valve
Centerline butterfly valve, single eccentric butterfly valve, double eccentric butterfly valve and triple eccentric butterfly valve, these kinds of butterfly valves change the sealing and opening state by setting the position of the valve plate shaft. Under the same cond...Read more -
Why Does The Stainless Steel is Rust ?
When brown rust spots (spots) appear on the surface of stainless steel pipes, people are greatly surprised: “Stainless steel does not rust, and if it rusts, it is not stainless steel, and there may be a problem with the steel.” In fact, this is a one-sided misconception about the lack...Read more -
Why do valve surfaces need coatings
Corrosion is one of the important elements that cause valve damage. In valve protection, valve corrosion protection is an important issue to consider. For metal valves, surface coating treatment is the best cost-effective protection method. 1. Shielding After the metal surface is coated with pain...Read more