Gate Valve Casting
We are a gate valve casting manufacturer,the company is the professional business which producing valves steel casting and valve products. The company has annual production capacity of 6,000 tons of steel casting. It is one of the strongest professional casting enterprises in China. Our products for high temperature and high pressure gate valve,ball valve,globe valve, exhaust valve and other switch valves, high plus three-way valve, high and low pressure bypass valve, control valve, butterfly valve and etc.
Why Choose Us?
Our Factory
Kaifeng Ruiwei Fluid Technology Co., Ltd was established in 2017 with a registered capital of 2 million yuan, 50 employees and 48 technicians. Its main business includes research and development of flow control equipment, technology transfer, technology support ,research and development of new materials for valves.
Production Equipment
In order to manufacture high-quality products, our company is equipped 5T medium frequency furnaces, 2.5T medium frequency furnaces, 0.75T medium frequency furnaces, the resin sand flask molding lines with German technology, multiple shot-blasting machines, heating treatment furnaces, full set of model making and excellent mechanical processing equipment.
Production Market
One of the suppliers of China's five major power generation groups, CNPC, CNP, Daya Bay Nuclear Power Station and Qinshan Nuclear Power Station.
Fast Delivery
The manufacturing process, we providing customers with one-stop service of instant production progress, storage delivery,efficient transportation, on-site installation guidance and debugging.
Kaifeng Dongli High Pressure Valve Casting Co.,Ltd. is an ISO9001 and PED certified manufacturer specializing in the manufacture of various customized industrial valve parts. The most popular materials we make are Carbon Steel, Heat Resistance Steel, Stainless steel, mainly including WCB、WCC、WC1、WC6、WC9、WB36、LCB、LC3、LCC、CF8、CF8M、CF3M、CF8C and Cr、Mo、V steel.
Advantages of Gate Valve Casting
Good corrosion resistance
The cast iron gate valve can resist the erosion and corrosion of chemicals to a certain extent and has good corrosion resistance .
Good sealing
The cast iron gate valve adopts valve seats and sealing rings with excellent sealing performance, which can effectively prevent medium leakage .
Wide application range
The cast iron gate valve is suitable for a variety of different media and working conditions, including liquids, gases, etc. .
Easy maintenance
The cast iron gate valve has a simple structure, easy maintenance, and it is easy to replace accessories such as valve seats and sealing rings.
Types of Gate Valve Casting
Gate Valve Body Casting
The gate valve (sluice valve) is a gate of the opening and closing part. The direction of movement of the gate is perpendicular to the direction of the fluid. The gate valve can only be fully opened and fully closed, and cannot be adjusted or throttled.
24 Inch Wcb 600lb Flat Gate Valve Body Casting
4 inch wcb 600lb flat gate valve casting is usually produced with resin no-bake sand molding,resin no-bake sand molding is a casting process with resin as a binder. At room temperature, the binder undergoes a chemical reaction under the action of a curing agent to solidify the molding sand.
28 Inch Wcb Gate Valve Disc Casting
Gate valves are typically used in industrial applications to control the flow of various types of fluids, such as water, oil, and gas. The disc of a gate valve is an important component that controls the flow of the fluid through the valve. The disc can be manufactured using various casting processes, including resin sand molding.
Gate Valve Disc Cast By Resin Sand Molding Process
Gate valves are typically used in industrial applications to control the flow of various types of fluids, such as water, oil, and gas. The disc of a gate valve is an important component that controls the flow of the fluid through the valve.
24 Inch 300bl Wc6 Gate Valve Disc
Gate valves are one of the most commonly used valves in various industries, and their design is critical to their operation. One of the key components of a gate valve is the gate valve disc, which is responsible for controlling the flow of fluid through the valve.
12 Inch 1500bl Wcb Gate Valve Castings
Gate valve castings, also known as gate valve bodies, are components used in gate valve assemblies. These castings are typically made of metals such as iron, steel, or bronze, and are designed to withstand high pressure and high temperature environments.
Application of Gate Valve Casting
Water Conservancy Projects
In water conservancy projects, gate valve castings are mainly used to control the flow and water level of water bodies such as rivers, reservoirs, and lakes. They are installed in channels, culverts, spillways, etc., and regulate the water flow by opening or closing to ensure the rational allocation and utilization of water resources. Especially in the flood prevention season, gate valve castings can be quickly closed, effectively blocking flood invasion and protecting the safety of downstream areas.
Industry
In the industrial field, gate valve castings are widely used in factories, mines, power plants and other places for import and export control, safety protection, etc. Their rugged and durable characteristics enable them to withstand various impacts and corrosion to ensure the safety of personnel and equipment. In addition, gate valve castings are also used to control the discharge of industrial wastewater, and by adjusting the degree of opening and closing, precise control of wastewater discharge can be achieved.
Architecture
In the construction field, gate valve castings are used as safety protection equipment to prevent unauthorized personnel from entering dangerous areas. They can also be used as decorative elements of buildings to increase the beauty of buildings. In commercial buildings such as shopping malls, office buildings, hotels and other places, gate valve castings also play an important role in protecting the safety of buildings and personnel.
Transportation
In the field of transportation, gate valve castings are used to control traffic flow, adjust the speed and number of vehicles and pedestrians, and ensure smooth and safe traffic. In emergencies, they can also serve as obstacles to prevent out-of-control vehicles or pedestrians from entering dangerous areas.
Environmental Protection And Agriculture
In the field of environmental protection, gate valve castings are used in urban sewage, industrial wastewater treatment and other projects to control the discharge speed and flow of sewage and achieve effective treatment of sewage. In the field of agriculture, gate valve castings are used in farmland irrigation and drainage systems to adjust water flow according to crop growth needs to achieve scientific irrigation and effective drainage.
Materials Used in Gate Valve Casting
Materials like cast iron, stainless steel, brass, bronze, carbon steel, alloy steel, nickel-chromium alloy, chromium-molybdenum steel, cast copper, and titanium alloy are used. Each has its own strengths in corrosion resistance, temperature and pressure, and chemical environments.
Cast iron is a cost-effective choice for low to medium pressure. Stainless steel, alloy steel, and nickel-chromium alloy are better for high-pressure and high-temperature. Brass and bronze are good for water systems because of their corrosion resistance. Titanium alloy is best for very corrosive media and seawater.
|
Material |
Pressure Rating |
Temperature Range |
Corrosion Resistance |
Typical Applications |
|
Cast Iron |
Low to Medium |
-20°C to 450°C |
Moderate |
Water, Steam, Gas |
|
Stainless Steel |
High |
-40°C to 650°C |
Excellent |
Corrosive Chemicals, High-Pressure Fluids |
|
Brass |
Low |
-20°C to 150°C |
Good |
Water, Potable Fluids |
|
Bronze |
Medium |
-20°C to 300°C |
Excellent |
Seawater, Marine Applications |
Forging VS Gate Valve Casting
Choosing between forging and casting for gate valves has its pros and cons. Forging is great for strong and durable valves, perfect for high-pressure and heat. Casting, however, is better for big production runs and offers design flexibility.
Comparing manufacturing processes
Sand casting is common for steel valves, especially big ones. Investment casting is better for small, precise parts and is cheaper than sand casting. It can make parts up to 100 kg and 1.6m long.
Forged valves are stronger than cast ones. Forging also gets rid of air pockets, making them last longer. But, forging is pricier and only works for small batches.
Advantages of gate valve casting
Cast valves fit many sizes and shapes, offering design freedom. They're also cheaper to make, with lower labor costs and big batch sizes. Plus, they're quicker to produce.
Cast valves can have a smooth finish, just like forged ones. This makes them a good, affordable choice for many uses.
Deciding between forged and cast valves depends on what you need. It's about balancing cost, performance, and design.