youzhen are exported all over the world and different industries with quality first. Our belief is to provide our customers with more and better high value-added products. Let's create a better future together.
Valve castings are parts such as valve bodies, valve covers and hand wheels that are castings. Casting is used to manufacture parts with large dimensions to save costs. However, forging is used to manufacture small size valves.
Valves contain a valve body, bonnet, stem and flap. The valve stem is forged. Forged parts can be replaced by rolled steel. Rolled bar stock is also acceptable at low pressures. Discs, bodies and bonnets can be made directly from bar stock. Large size parts are cast. Casting materials can be classified as carbon steel, alloy steel and stainless steel.
Carbon steel: WCA, WCB, WCC;
Alloy steel: WC6, WC9;
Stainless steel: CF8, CF8M, CF3, CF3M.
All valves are indispensable parts of any industrial system, but not all valves are created in the same way. For example, some valves are forged and other valves are cast. So what are the differences between forging vs casting valves and which type of valve is best for your specific application?
Forging is a process that uses metal forming machinery to pressure process metal blanks to deform them plastically to obtain mechanical properties, shape and size. Forging is a common forming process widely used in machinery. Forging eliminates cast pine and weld holes within the metal. The mechanical properties of forgings are superior to those of castings.
Depending on the temperature, forging can be divided into cold forging and hot forging. Typically, cold forging is carried out at room temperature. Hot forging is carried out at a temperature above the recrystallisation temperature of the metal. Forging at temperatures below recrystallisation is called warm forging.
Forged valves are created using a forging method that involves shaping metals and alloys while they&#;re in their solid form. Heat and industrial-size tools deliver compressive forces to bend the metals and alloys, and dies are used to cut and shape the materials to create specific valves. Forging can be performed in most temperatures depending on the metals used.
don&#;t have to worry about wasted materials
shaped into one solid piece
ideal for handling high-pressure and high-temperature systems
increase in impact and overall strength.
create valves with less wall thickness
forged valves can be heated and cooled more quickly
Casting is a type of injection moulding in which molten liquid metal is injected into a prepared mould. After cooling, the casting is formed. Casting can be classified by process as sand casting, pressure casting, investment casting, shell casting, cavityless casting, low pressure casting, gravity casting etc.
Unlike forging, casting uses the liquid form of metal to create valves. These metals are melted into a molten liquid and poured into various molds. Once the liquid cools and solidifies, it&#;s broken out of or ejected from the mold.
One of the biggest benefits of casting is that it can create valves with complex shapes, patterns, and sizes. Using a mold to manufacture these devices gives you more freedom to make different types valves with more intricate parts.
If you want to learn more, please visit our website valve parts casting exporter.
Casting valves are also a great cost-effective solution for many companies. It allows you to make valves using more types of metals and alloys. Plus, since it doesn&#;t require as much labor as forging valves, casting helps to reduce machining costs, especially when creating valves of complex shapes.
Most importantly, casting valves provides an easier and less time-consuming way to make replacement parts when a system&#;s current valves break down and deteriorate
OEM valve parts
As an OEM valve parts supplier in China, Zen Young has rich experience in casting processing and high quality service.
-Cast parts weight from 0.1kgs up to 10,000kgs
-Following the standardized production of ISO :
-We supply OEM casting services for world wide manufactures.
To view more:
Common Heat Treatment Process for Steel Castings (Part 1)
Common Heat Treatment Process for Steel Castings (Part 2)
For the wide application of valves for pipelines, transportation and industrial production all need valves for controlling, CFS foundry is the reliable manufacturer and supplier for valve manufacturers all over the world. We can make all kinds of cast valve components for check valve, butterfly valve, ball valve, gate valve, control valve, globe valve, plug valve, etc.
As a valve parts producer, we are professional in making all kinds of valve components including cast valve body, cast valve disc, cast valve bonnet, cast valve flange, cast valve flange and other valve component castings. According to the material specification and dimensions of valve casting parts, we can make them in different casting methods:
Lost Wax Casting: Is able to make cast steel valve components, like carbon steel, stainless steel, and other cast steel alloys. Lost wax casting is a precision casting method for valve components, so we can achieve good dimensions and tolerances, smoother surface. Stainless steel valve casting parts are widely used in silical sol casting process, which is another lost wax method. We can use this casting process for butterfly valves, ball valves, ect.
Lost Foam Casting: This casting method is more suitable for making precison cast iron valve parts, which can also get good surface finish and sizes, such net shape or near net shape valve castings will need no machining or just little machining allowance.
Sand Casting: Also a casting process for valve casting parts. Sand casting is suitable for both steel and iron valve castings. Compare with lost foam and lost wax castings, it is more suitable to make larger valve components, so normally, we will need to leave more machining allowance for further machining operation. The max weight we can cast is around 2 tons per piece.
Carbon Steel (mainy for high pressure valve castings): WCA, WCB, ZG25, ZG200-350, ASTM A216 WCA/WCB/WCC, GS25.
Stainless Steel: SS304, SS316, PH17-4, ASTM A351 CF8/CF8M/CF3/CF3M, ZG0Cr18Ni9, zg0Cr18Ni12Mo2, ZG00Cr18Ni10.
Gray Iron: HT200, HT250, HT300, HT350,GG15, GG20, GG30, FC200, FC250, FC300, ASTM A48 CLASS NO.20,NO.25,NO.30, NO.35.
Ductile Iron: QT400-18, QT500-7, QT600-3,GGG40, GGG50,GGG60, FCD450-70, FCD400-15, FCD500-7, FCD600-3, ASTM A536 ( 60-40-18,65-45-12, 80-55-06).
To supply finished valve casting parts, we have machining equipments as well (NC lathe, CNC, boring machine, drilling machine, etc) for different machining requirements. Besides, we also have hydraulic testing capability to ensure workable valve castings.
For large dimensions valve casting parts, to avoid casting defects, it is necessary to do magnetic particle testing and ultrasonic testing after casting.
In conclusion, you can enjoy lots of benefits to purchase valve casting parts from CFS foundry, like wide material selection, multiple casting methods, machining service, and so on. Once cooperating with us, you will feel lucky to cooperate with such a good supplier for our high quality and competitive prices. Even if you would like to source forged valve components, do not worry, we can also provide you forged valve parts from our another forging company. Just pls contact us once you have demands of valve components.
The company is the world’s best gear box casting supplier. We are your one-stop shop for all needs. Our staff are highly-specialized and will help you find the product you need.