Valve Castings
The valve is used to change the passage section and the flow direction of the medium. It has the functions of diversion, cutoff, regulation, throttling, check, split or overflow relief. Valve castings are control components in pipeline fluid delivery systems. They come in a wide variety of sizes and sizes.
Valve castings are widely used in chemical, petrochemical, petroleum, paper, mining, electric power, liquefied petroleum gas, food, pharmaceutical, water supply, and drainage, municipal, mechanical equipment, electronics industry, urban construction, and other fields.
Our foundry is a reliable valve parts manufacturer and supplier for valve clients all over the world. We can make all kinds of casting valve components for a check valve, butterfly valve, ball valve, gate valve, control valve, globe valve, plug valve, etc.
The main types of valve castings
Gate Valve Casting
We can offer the scale of Gate Valve Castings from our foundry. Steel gate valve castings can be used for steam, water, air, oil, gas, and non-acid fluids. These valve castings are specially designed to endure high temperatures and load. As per the client’s requirements, we can customize different gate valve castings.
Globe Valve Casting
Globe Valve Casting is widely used in the Pharmaceutical, Chemical, and petrochemicals industries. This industry has a high demand for Globe Valve Casting. As one of the best valve casting manufacturers, our product has Long-lasting and stable properties. It is welcome by our customers because of its comfort of fitting, supreme tensile energy, and accurate engineering.
Ball Valves Casting
Ball Valves Casting is the most exported one in our foundry. It is accepted by our customers at reasonable prices, trusted quality. These castings are broadly used in railway industries for air dryer systems with their hardy frame, greater services, and conventional dimensions
Valve Casting images
Valve Investment Casting Process
As per the material specification and dimensions of valve casting parts, we can make them in different casting processes:
Process 1:
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. 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.
Process 2:
Lost Wax Casting: Can 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 the silica sol casting process, which is another lost wax method. We can use this casting process for butterfly valves, ball valves, etc.
Process 3:
Lost Foam Casting: This casting method is more suitable for making precision cast iron valve parts. It can also get a good surface finish and size. Such as net shape or near-net shape valve castings will need no machining or just little machining allowance.
Most importantly, valve casting provides an easier and less time-consuming way to make replacement parts when a system’s current valves break down and deteriorate. We believe that Your drawing + our technology = Satisfactory product
Materials of Valve Casting Parts are as following:
| Carbon Steel (mainly 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). |
The common materials and standards are as below:
NO. | Materials | Pressure | Temperature | Medium | Grades |
| 1 | Gray cast iron | ≤1.0MPa | -10 °C ~ 200 °C | water, steam, air, gas, and oil | HT200, HT250, HT300, HT350 |
| 2 | Forgeable cast iron | ≤ 2.5MPa | -30 ~ 300 °C | water, steam, air and oil | KTH300-06, KTH330-08, KTH350-10 |
| 3 | Ductile iron | ≤4.0MPa | -30～350°C | water, steam, air and oil | QT400—15, QT450—10, QT500—7 |
| 4 | Acid-resistant high silicon ductile iron | ≤ 0.25MPa | below 120 °C | – | – |
| 5 | Carbon steel | ≤32.0MPa | -30～425°C | water, steam, air, hydrogen, ammonia, nitrogen and petroleum products | WC1, WCB, ZG25 and high quality steel 20, 25, 30 and low alloy structural steel 16Mn. |
| 6 | Copper alloy | ≤ 2.5MPa | -40 ~ 250 °C | water, seawater, oxygen, air, oil and other media | ZGnSn10Zn2 (tin bronze), H62, Hpb59-1 (brass), QAZ19-2, QA19-4 (aluminum bronze). |
| 7 | High-temperature copper | ≤17.0MPA | ≤570°C | steam and petroleum products | ZGCr5Mo, 1Cr5M0, ZG20CrMoV, ZG15Gr1Mo1V, 12CrMoV, WC6, WC9 and other grades. |
| 8 | Low-temperature steel | ≤ 6.4Mpa | ≥ -196 ° C | ethylene, propylene, liquid natural gas, liquid nitrogen and other media | ZG1Cr18Ni9 0Cr18Ni9 1Cr18Ni9Ti ZG0Cr18Ni9 |
| 9 | Stainless acid-resistant steel | ≤ 6.4Mpa | ≤ 200 ° C | Nitrite acid, acetic acid and other media | ZG0Cr18Ni9Ti ZG0Cr18Ni10 ZG0Cr18Ni12Mo2Ti ZG1Cr18Ni12Mo2Ti |
Stainless steel valve casting products Brief Introduction (Example)
| Specification | Customized, customer Required, customer’s Drawings, Samples |
| Material | Stainless steel |
| Application | Automobile, Agricultural machinery, Pipage, Furniture, Construction, Home Appliances, Electronics, etc. |
| Process | Precision casting, Lost wax casting, Investment casting |
| Machining | CNC machining center, CNC lathe |
| Casting tolerance | IT5 – IT7, CT5-7 |
| Machining tolerance | +/- 0.005mm,ISO2768-f,ISO-MK |
| Standard | DIN,AISI,SAE,ASTM,UNS,GOST,ISO,BS,EN,JIS |
| Heat treatment | Solid solution annealed, quench and tempering |
| Unit Weight | 5g-100kg |
| Dimensions | <=800mm |
| Certificate | ISO9001, TS16949,ISO1400,RoHS |
| Finish | Polishing, Shoot blasting, Glass bead sandblasting,etc. |
| Quality control | FEMA,PPAP,APQP,Control Plan,MSA, Certificates for all requirements Test reports for every delivery |
| Service | Weekly report, Key node report, Any questions will be answered within 24 hours |
Capabilities to supply valve castings
To supply finished valve casting parts, we have machining equipment as well (NC lathe, CNC, boring machine, drilling machine, etc) for different machining requirements. Besides, we also have the 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 buy valve casting parts from our foundry. Like wide material selection, many 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 with forged valve parts from another forging company. Just please contact us once you have the demands of valve components.
Q & A：
Q 1: What about the leading time?
A: Generally speaking, the leading time is about 35 days. But please confirm the exact delivery time with us as different products and different quantities will have different leading times.
Q 2: How to get a sample?
A: Sample order is acceptable. Please contact us and make sure what sample do you need. in general,It will take 25 days to finish your sample.
Q 3: What value-added services do we provide?
- 1. offer 100 % test for all products(no extra charge).
- 2. each new product provide four x ray film as a process assessment(no extra charge)
- 3. patent,purchase quantity to 10 tons(no extra charge)
- 4. valve body parts,hydraulic or pneumatic test(no extra charge)
Q 4: What other Valve Casting parts can you supply?
A: Valve Body, Valve disc,Valve bonnet, Valve gland
Q 5:How to place an order?
A: Leave a message, we can get your feedback immediately online.