Table of Contents
1. What is brass valve
2. Brief history of brass valves
3. Function of brass valves
4. Main spare parts of brass valve
5. Types of brass valves
6. Application of brass valve
7. Production processes of brass valves
8. How to Choose brass valve
9. Famous brass valve manufacturers
10. company and product advantages
11. Hot products
12. Chinese VS Foreign brass valves
13. Conclusion
Part 1. What is brass valve
Brass valves are devices used to control the direction, pressure and flow of fluids in fluid control systems. They are devices that make the medium (liquid, gas, powder) flow or stop in pipes and equipment and can control the flow. Brass valves for fluid control, from the simplest shut-off valve to various brass valves used in extremely complex automatic control systems, have a wide range of varieties and specifications, and the nominal diameter of brass valves ranges from extremely small.
Brass valves for industrial pipelines ranging from DN8 to DN100. It can be used to control the flow of various types of fluids such as water, steam, oil, gas, mud, various corrosive media, liquid metals and radioactive fluids. The working pressure of brass valves can be from PN10 to PN40 high pressure, and the working temperature can be Low temperature of 20°C to a high temperature of 120°C.
Part 2. Brief history of brass valves
Before 2000 B.C., the Chinese used bamboo pipes and cork valves in water pipelines and later used sluice gates in irrigation channels, plate check valves in bellows for smelting, and bamboo in well salt mining. Tube and plate check valves extract brine.
With the development of smelting technology and hydraulic machinery, copper and lead plug valves appeared in Europe. With the use of boilers, in 1681, a lever-heavy-hammer safety valve appeared. Globe and check valves were the most important brass valves until the advent of the Watt steam engine in 1769.
The invention of the steam engine brought brass valves into the mechanical industry. In addition to shut-off valves, safety valves and check valves, gate valves are also used on Watt's steam engines to regulate flow. With the increase of steam flow and pressure, the use of plug valves to control the steam intake and exhaust of the steam engine can no longer meet the needs, so the ball valve appeared.
Around 1840, globe valves with threaded stems and wedge gate valves with trapezoidal threaded stems appeared one after another, which was a major breakthrough in the development of brass valves. The emergence of these two types of valves not only met the requirements of various industries at that time for increasing pressure and temperature but also initially met the requirements for flow regulation. Since then, with the development of the electric power industry, petroleum industry, chemical industry and shipbuilding industry, various high and medium pressure brass valves have developed rapidly.
After World War II, due to the development of polymeric materials, lubricating materials, stainless steel and cobalt-based cemented carbide, the ancient plug valves and butterfly valves have gained new applications, and ball valves and diaphragm valves have developed rapidly. The variety of globe valves, gate valves and other brass valves is increased and the quality is improved. Brass valve manufacturing has gradually become an important sector of the machinery industry.
In China, in the early 1980s, Ningbo, Zhejiang took the lead in developing the manufacturing process, which changed the history of using cast iron brass valves for a long time in China. For the brass valve manufacturers, the sand casting process was initially used, and in the early 1990s, it was changed to the forging process. By the beginning of the 21st century, China has developed into the world's copper and brass valve manufacturing center. After 30 years of vigorous development, the product specifications and varieties of China's brass valve industry are becoming more and more perfect. There are more than 3,000 plumbing brass valve production and processing enterprises, and the entire industrial cluster has formed a supporting industrial chain of the professional division of labor and cooperation from mold making to copper rod processing, forging electroplating, sandblasting, assembly, and packaging. There are many varieties and scales of products, with more than 100 varieties of copper and brass valves and more than 1,000 specifications.
Part 3. Function of brass valves
Brass valves have the functions of cutting off, regulating, diverting, preventing backflow, regulating pressure, shunting, or overflowing pressure relief.
1. Shut-off function
An important function of the brass valve is the cut-off effect. It is to cut off (shut off) the fluid in the pipeline and prevent it from circulating. Under normal circumstances, the brass valves of various pipelines mainly play a cut-off role.
2. Regulating function
Another important role of the brass valve is to adjust the flow. According to the needs of the working conditions or use requirements, adjust the medium flow, temperature, pressure, liquid level and other parameters in the pipeline, and the control of this flow depends on the opening of the brass valve. size to adjust.
3. Back-flow prevention function
Some pipelines require the medium to flow in one direction and do not allow reverse flow or backflow, which requires the use of non-return brass valves (or one-way brass valves). It refers to a brass valve that automatically opens and closes the valve flap by relying on the flow of the medium itself and is used to prevent the backflow of the medium. It belongs to an automatic brass valve. Drainage of container media.
4. Safety function
In order to prevent explosion accidents when the fluid pressure in the high-pressure container exceeds the pressure-bearing limit of the container when the pressure is too high, a brass valve that can automatically release the pressure at a certain pressure is installed on the container, commonly known as a safety valve. For example, boilers, compressed air storage tanks and some high pressure reactors are equipped with safety valves. This brass valve acts as a guarantee of safety.
5. Other functions
In addition to the above four functions, the brass valve also has some functions, such as the function of stabilizing the system pressure; reducing the high pressure in front of the brass valve to a lower pressure decompression function, performing the decompression function of venting, and discharging sewage The function of sewage discharge; the sampling function of sampling for analysis and observation; and the return function of returning a part of the fluid to the previous process. There is also a steering brass valve (three-way valve, four-way valve, etc.)
Part 4. Main spare parts of brass valve
1. Valve body
The material is brass, and the surface treatment includes nickel plating, chrome plating, natural color, and pickling. Nickel plating can be divided into dark nickel, matt nickel, and bright nickel. Chrome plating is more expensive than nickel plating. Different countries and markets require different raw materials. We mainly use ordinary brass HPb57-3 CuZn39Pb3 (two elements Cu and Pb raw material control).
2. Valve ball or disc
The material is brass, and the surface is chrome-plated. Generally, in order to save costs and facilitate the use of large-size products, solid balls are used for brass valves below φ39, hollow spheres above φ39, and flat-bottomed balls are generally used for solid balls to reduce weight. The surface roughness and roundness of the ball are one of the most important factors that directly affect the sealing performance of the ball valve.
3. PTFE seat
Also known as TEFLON, the chemical name is polytetrafluoroethylene.
1) Advantages: excellent chemical stability, no chemical effect with strong acid and strong alkali chemicals, high heat resistance, and cold resistance, the use temperature is generally -20 to 130 ℃, and the coefficient of friction is very high. Low, it is a good self-lubricating material;
2) Disadvantages: low mechanical properties, poor rigidity, cold fluidity, low thermal conductivity, large thermal expansion, low wear resistance (if you need to increase wear resistance, you can add fillers, such as graphite, disulfide, aluminum Powder, glass fiber, etc., moderately improved);
3) Function: Mainly used as a chemical-resistant, high-temperature-resistant seal, such as packing, gasket, valve seat, etc.;
4. O-ring (rubber gasket)
NBR --- China's material code is 66B, which is divided into two types: 66B-1 and 66B-2.
We currently use O-rings whose hardness is generally 65; the greater the hardness, the better the wear resistance; but more than HA80, the greater the brittleness;
5. Valve stem
The valve stem is divided into an O-ring structure stem and a pressure cap structure stem. The O-ring structure valve stem is sealed with an O-ring, and the pressure cap structure valve stem is sealed with a packing. The valve stem of the pressure cap structure is divided into the top-loading type and the bottom loading type.
6. Valve handle or hand-wheel
A) From the perspective of color, the handle is divided into red, yellow, blue, green, white, and black. Usually, different colors indicate different media: red generally indicates a higher temperature medium; yellow indicates a gas medium (European countries), so the brass valve with a yellow handle is a gas valve; blue generally indicates a lower temperature medium; white generally indicates Cold air medium; black generally means oily medium.
B) From the perspective of material, the handles are divided into aluminum handles, iron handles, plastic-bonded iron handles and nylon handles, and other plastic handles are ABS, POM, etc.
C) According to the shape, it can be divided into a round handle, stretch handle, butterfly handle and lock handle, and single-word handle. The handling code of our factory is: LP means red round handle; ST means viscose handle; TG means yellow butterfly handle; T means butterfly aluminum handle; M means nylon handle; LK means lock handle.
7. Valve cap
According to the shape, it can be divided into the hexagonal cap and octagonal cap.
Part 5. Types of brass valves
1. According to functions
Brass valves can be divided into:
Brass ball valves, brass angle valves, brass safety valves, brass stop valves, brass check valves, brass filter valves, brass gate valves and brass heating valves. The products that are currently in demand on the market are brass ball valves, brass bibcocks, brass stop valves, brass angle valves, brass check valves and Y filter valves, etc.
Brass ball valve
Brass ball valve is one type of quarter turn valve, is quite literally a ball placed in a passageway through which fluid flows. The ball has a hole through it, by which the valve opens and closes. When the ball is positioned so that the hole runs in the same direction as the passageway, the valve is open.
Brass gate valve
Brass gate valve, also called brass disc valves, are valves in which the closing valve disc moves in the vertical direction along the centerline of the passage, used to turn the media on or off. The gate valve composes of a brass valve body and cap, disc, stem and nuts.
Brass angle valve
Brass angle valve is a type of brass valve that is most commonly used in household and sanitary applications, the quality and performance of a brass angle valve are critical. There are several factors to be considered when buying or importing brass angle valves from China.
Brass check valve
Brass check valve is an automatic valve whose opening and closing parts are circular discs and rely on its own weight and medium pressure to generate actions to block the backflow of the medium, also known as a check valve, a one-way valve, nonreturn valve or isolation valve. The medium flows in from the inlet end (lower side) and flows out from the outlet end (upper side). When the inlet pressure is greater than the sum of the weight of the disc and its flow resistance, the check valve is opened. On the contrary, the valve is closed when the medium flows back.
Brass radiator valve
Brass radiator valve is a kind of brass valve that is used house radiator, The brass radiator valve is normally composed of a temperature controller (thermostatic head), brass valve body and connecting parts. The core component of a brass radiator valve is the sensor unit, that is, the thermostatic head which can sense the change of the surrounding environment temperature to produce volume changes, drive the valve stem to produce displacement, and then adjust the water volume of the radiator to change the heat dissipation of the radiator.
Brass Filter valve
Brass filter valve: Brass Y strainer valve, is an indispensable device in the pipeline of the conveying medium. It is usually installed at the inlet of a pressure-reducing valve, a pressure relief valve, a fixed water level valve, or other equipment to eliminate impurities in the flow to protect the valve and equipment for normal use. When the fluid enters the mesh filter with a certain specification filter screen, its impurities are blocked, and the clean filtrate is discharged from the filter outlet.
Brass Stop valve
Brass stop valve refers to a valve in which the closing member (disc) moves along the centerline of the valve seat. According to this moving form of the valve disc, the change of the valve seat port is proportional to the valve disc stroke. Because the valve stem of this type of valve has a relatively short opening or closing stroke and has a very reliable shut-off function, and because the change of the valve seat port is proportional to the stroke of the valve disc, it is very suitable for flow regulation.
Brass safety valve
Brass safety valve is to control the opening degree of the opening and closing parts in the valve body to adjust the flow of the medium, reduce the pressure of the medium, and at the same time adjust the opening degree of the opening and closing parts with the help of the pressure behind the valve to keep the pressure behind the valve within a certain range.
The water heater safety valve is a multifunctional storage type electric water heater safety relief valve, suitable for electric water heaters, and air energy water heaters.
Brass float valve
Brass floating valve is composed of the brass valve body, connecting rod and floating ball, which can automatically control the liquid level of the water tower or swimming pool, main function is to control the water at a certain level The water level is not interfered by water pressure and is tightly opened and closed without water leakage.
2. According to working pressure
Brass valves can be divided into:
Low pressure: (nominal pressure) ≤1.6MPa
Medium pressure: (nominal pressure) 2.5~6.4MPa
High pressure: (nominal pressure) 10~80MPa
Ultra-high pressure: (nominal pressure) ≥100MPa
Brass valves are mainly medium and low-pressure brass valves;
The mark on the valve body is ten multiples of Mpa. Such as PN10 nominal pressure is 1MPa
3. According to the working temperature
Brass valves can be divided into:
1) Ultra-low temperature <-100℃
2) Low temperature -100℃~ -40℃
3) Normal temperature -40℃~120℃ (all ball valves produced by NAFCO are within this temperature range)
4) Medium temperature 120℃~450℃
5) High temperature>450℃
4. According to the flow medium
Brass valves can be divided into:
Water brass valves, steam brass valves and gas brass valves: we currently produce civil-use water brass valves and civil-use gas brass valves. The gas valves are generally EN331 certified.
5. According to the stem structures
Brass valves can be divided into:
O-ring structure and packing gland structure:
1) O-ring structure: specifically refers to the seal on the stem is sealed with a black rubber seal; the advantage of this structure is that the assembly procedure at the stem is relatively simple; the cost is relatively small; the disadvantage is that it is not repairable and the use temperature range is low, easy to age.
2) Packing gland structure: In particular, the valve stem seal is made of PTFE plastic seal; the advantages and disadvantages of this structure are opposite to the O-ring structure, and it is safer and can be applied to relatively high pressure environments.
6. According to the end connection
Brass valves can be divided into:
1) Threaded connection:
2) Compression connection:
3) Flange connection:
4) Welding:
A: socket welding: the welding port of the ball valve is inserted into the pipe;
B: Butt welding: butt joint of the welding part of the ball valve and the port of the pipe
5) Clamping band connection:
End connection defines the way that the brass valves are connected with other pipe devices.
7. According to the operating modes
Brass valves can be divided into:
1. Motorized brass valves: driven by a motor or other electrical device.
2. Hydraulic brass valves: driven by (water, oil). Swing shape
3. Pneumatic brass valves; use compressed air to drive the brass valve to open and close.
4. Manual brass valves: with the help of handwheels, handles, levers or sprockets, etc., driven by human power
The operating model is the way that the brass valves open and closed.
8. According to the bore size:
Brass valves can be divided into:
Full bore brass valves
Standard bore brass valves
Reduced brass valves.
Bore size stands for the flow passage diameter, which is an important factor in the flow rate of brass valves.
Part 6. Application of brass valve
1. Urban water supply
Water pipelines are the main application range of brass ball valves. Generally, low-pressure brass valves are used. At present, they are developing in the direction of environmental protection and energy saving. Commonly used brass valves include brass ball valve, brass gate valve, brass globe valve, brass check valve, brass water meter joint ball valve, etc.,
2. Gas supply
City gas accounts for 22% of the entire natural market, and the number of brass valves is large and there are many types. Mainly need a brass gas valve, brass gas gate valve, as well as brass hose ball valve, brass angle valve, etc. Gas pipelines have high air tightness requirements for brass valves to avoid gas leakage, resulting in major property damage and casualties.
3. Plumbing bathroom
The plumbing bathroom mainly uses a brass angle valve, angle valve, and brass ball valve, the main function is to adjust the flow of water supply. The angle valve usually includes a cold water angle valve and a hot water angle valve, and the outlet water temperature adjustment is realized by controlling the flow of the two angle valves.
4. Agricultural irrigation
Agricultural irrigation mainly uses brass gate valves, brass bottom valves, and brass check valves. A brass gate valve is mainly used to cut off and adjust the flow, and the main function of the brass bottom valve and check valve is to prevent the backflow of water and filter the water inlet of the pump. It is the equipment often used in agricultural production.
5. Garden irrigation
Garden irrigation mainly uses brass ball valves and brass water nozzles. A brass faucet is a type of ball valve, also known as an outdoor faucet, which can be connected to a plastic hose to irrigate flowers and trees.
6. Floor heating and ventilation
Geothermal heating mainly uses a brass heating valve,the user can use the exhaust device to manually exhaust the air in the floor heating pipeline to ensure the normal circulation of hot water. There is a brass filter valve on the front end of the brass water separator.
Part 7. Production processes of brass valves
1. Brass valve design: Product design is a process of converting a certain purpose or need of a brass valve into a specific physical form or tool. It is a kind of creativity that expresses a plan, planning assumption, and problem-solving method through a specific carrier. activity procedure. Usually according to customer or project requirements, the prototype and size of the brass valve are designed through computer CAD or 3D, and then the product design is confirmed through the sample, and then enters the mass production stage.
2. Brass valve hot forging: Use a cutting machine to cut the copper rod into various copper rods of varying lengths according to the brass demand of the product → put the required mold in the punch, and press (forge) the high-temperature heated copper rod. So as to get the blank → put the blank with flash into the punch and cut off the edges.
3. Brass valve sandblasting: Put the cut edge blanks into the blasting machine and blast sand with different specifications of sand according to customer requirements. After sanding, the surface of the products should be inspected one by one, and if it is not, they should be repaired, selected, and scrapped.
4. Brass valve metalworking: body: a. Drilling water hole b. Metric end c. Inch end d. Middle hole. To the cap: a. drilling water hole b. metric end c. inch end; drilling and threading machines include CNC machine tools, instrument lathes, and ordinary large lathes.
5. Brass valve electroplating: nickel or chrome plating according to customer requirements.
6. Brass valve assembling and packaging: the tested various accessories purchased from outsourcing will be transported to the assembly workshop and the valve body and bonnet produced by our factory will be assembled and packaged together.
Source: Youtube.com | Automatic brass ball valve production
Part 8. How to Choose brass valve
Brass valve selection basis:
1. The purpose of the selected brass valve, the operating conditions and the control method.
2. The nature of the working medium: working pressure, working temperature, corrosive properties, whether it contains solid particles, whether the medium is toxic, whether it is a flammable or explosive medium, the viscosity of the medium, etc.
3. The connection method of the selected brass valve
4. Requirements for the fluid characteristics of brass valves: flow resistance, discharge capacity, flow characteristics, sealing level, etc.
5. Requirements for installation dimensions and external dimensions: nominal diameter, connection method and connection size with pipes, external dimensions or weight restrictions, etc.
6. Additional requirements for the reliability, service life and explosion-proof performance of electric devices of brass valve products. (After-sales service of brass valves
Brass valve selection steps:
1. Clarify the use design of the brass valve in the equipment or device, and determine the working conditions of the brass valve: applicable medium, working pressure, working temperature, etc.
2. Determine the nominal diameter and connection method of the pipe connecting with the brass valve: flange, thread, welding, ferrule, quick installation, etc.
3. Determine the way to operate the brass valve: manual, electric, electromagnetic, pneumatic or hydraulic, electrical linkage or electro-hydraulic linkage, etc.
4. According to the medium conveyed by the pipeline, the working pressure and the working temperature, the materials of the shell and internal parts of the brass valve are determined:
5Choose the type of brass valve: closed-circuit brass valve, regulating brass valve, safety brass valve, etc.
6. Determine the type of brass valve: gate valve, globe valve, ball valve, butterfly valve, throttle valve, safety valve, pressure reducing valve, steam trap, etc.
7. Determine the parameters of the brass valve: For the automatic brass valve, first determine the allowable flow resistance, discharge capacity, back pressure, etc. according to different needs, and then determine the nominal diameter of the pipeline and the diameter of the valve seat hole.
8. Determine the geometric parameters of the selected brass valve: structural length, flange connection form and size, the size of the brass valve in the height direction after opening and closing, the size and number of bolt holes connected, and the overall size of the brass valve, etc.
9. Use existing materials: brass valve product catalog, brass valve product samples, etc. to select appropriate brass valve products.
Referencial Video for brass valve selection:
Source: Youtube.com | Information On Different Plumbing Valves
Part 9. Top 10 brass valve manufacturers
1. Watts
Joseph Watts founded our company in 1874 on the belief that water boilers in textile mills shouldn’t explode, involved to world first class brass ball valve manufacturer today. What started with a pressure relief valve in a tiny New England machine shop, has paved the way for today’s high-quality, worldwide water solution technologies. From melting ice on entire city blocks from the ground up to filtering safe drinking water in isolated, weather disaster zones, you need water and water needs Watts.
2. Tecofi
Founded in 1985 in the Rhône-Alpes region, we design, manufacture and distribute brass ball valves in France and throughout the world. As a member of the French Fab, we are a key player in the field of water and industry.
3. KSB
As most professional brass ball valve manufacturer in the world, each year KSB manufactures almost a million valves. The range of valves on offer caters to numerous applications and is a perfect addition to KSB's comprehensive pump range. As well as manufacturing at its European locations, pump and valve producer KSB also operates plants in Asia and the Americas. This production network ensures that local customer support is always on hand when required. All products comply with the latest safety regulations and operate with excellent energy efficiency.
4. Arco
ARCO is a leading Spanish industrial company engaged in the design and manufacture of regulation and control systems for the professional of water, gas and heating installation.
They create solutions that improve brass ball valve manufacturer performance and help professionals with their work, giving them confidence and ensuring proper product functioning in the most difficult conditions.
5. Itap
ITAP Spa, founded in Lumezzane (Brescia) in 1972, is currently one of the leading manufacturer in Italy of valves, fittings and distribution manifolds for plumbing and heating systems. ITAP Spa is proud to offer brass ball valve bearing the approval of numerous international certifying bodies.
6. Pegler
The Pegler brand has been a major force in valves for over 100 years and is continuing development in today's markets by offering brass ball valves with heat free end connections. Pegler is a comprehensive brass ball valve manufacturer, providing compact, easy to operate, quarter turn ball valves with long trouble free service.
7. Kitz
KITZ is one of the few top brass ball valve manufacturers in the world. Founded in 1951, it has nearly half a century of brass ball valve manufacturing history. With rich experience and strong technical force, KITZ provides customers with a variety of brass ball valves for construction equipment, industrial water, air, oil and other fluid pipeline equipment
8. NAFCO
Ningbo Alpha Fluid Control Co., Ltd. (NAFCO) has been specializing in brass ball valve manufacture and export since its establishment. NAFCO is located in Ningbo Zhejiang, China - one of the plumbing valve production bases of China, we have a comprehensive industry chain of brass materials and spare parts, as well as abundant technical and industrial resources, accomplished with mature producing processes, meticulous quality control and diverse product lines.
9. Zoloto
Founded in the year 1966 India, Zoloto has turned into a world class brass ball valve manufacturer, with manufacturing state of the art quality brass ball valves and having a well-established ultra-modern research & development facility.
10. Duyar
Continuing its investments in line with its goal of becoming a world brand in brass ball valve field of business, Duyar Vana put its fully automatic molding and casting a line into service in its new facilities, with aim to be one of top brass ball valve manufacturers in the world.
Further Reading:
Part 10. NAFCO company and product advantages
NAFCO is a specialized brass valve manufacturer in China, our products mainly range from brass ball valves, brass gate valves, brass angle valves, brass check valves, brass radiator valves, brass fittings and custom brass valves, sizes from DN8 to DN100, pressures from PN10 to PN40, which widely used for water, gas, oil and heating systems.
In order to catch up with the development of the global fluid control industry, and to provide customers with quality products and services at favorable costs, NAFCO uses top-class machinery and equipment, all key manufacturing and core spare parts of brass valves are self-produced and self-controlled, along with strict quality control for each production progresses, ensures each brass valve qualified with technical standards and customer requirements.
We have several advantages over brass valve products and production:
1. Price Competitiveness
● Reduce costs for brass material and spare parts from reliable local suppliers
● High-efficient machines and equipment to increase production capacity
● Production process control to reduce the defect rate
● Annual 5 million brass valve production reduces unit product costs
2. Quality Assurance
● The production process is quality checked by QC workers with traceable records
● Each brass valve body is inspected and picked up the defect before trimming
● 100% leakage tightness test for every brass valve
● Random lab test from mass production as per standards
3. Delivery Time
● Optimize material and spare part supply chain for a shorter time
● Utilize automatic multi-axis machinery that can machine valves in seconds
● Employ skilled workers with more efficiency
● Give priority to urgent orders to finish within 35 days
4. Aftersales Service
● All our brass valves come with a three-year quality warranty
● Spare parts and components are available for replacements to all our brass valves.
● Our sales team is always at your service with the prompt response
● Free technical support for installation and repair
Part 11. Hot products
Part 12. Chinese VS Foreign brass valves
After more than 30 years of development, China's brass valve manufacturing industry has become the world's mainstream brass valve supplier. The world's major valve manufacturers and distributors purchase brass valves from China or carry out OEM OEM production. It boils down to the fact that Chinese brass valve manufacturers have a comparative advantage and offer products with extremely high cost performance.
1. The highly agglomerated labor-intensive industrial clusters reduce production costs and give products a certain advantage in price competitiveness. Compared with other foreign brass valve production places, China has advantages in the price of labor, water, electricity and other factors and the cost of resource conversion, forming a process from mold making to copper bar processing, forging, electroplating, sandblasting, assembly, packaging, etc. The industrial cluster of the professional division of labor and cooperation in 7 links makes the production rate of a brass valve manufacturing and supporting processing technology 15-20% higher than that of other places.
2. The product variety is relatively complete, and the market expansion space is large. The main products in China are medium and low pressure copper brass valves and fittings, plumbing equipment and plunger valves. Medium and low pressure copper brass valves and accessories have more than 100 varieties and more than 1,000 specifications, such as yellow (bronze) copper forged copper valves, gate valves, globe valves, check valves, filter valves, etc., which are mainly used in kitchen and bathroom drainage systems. Plunger valves are also available in mass production. There are many kinds of brass valve products in China and complete specifications. Enterprises can also produce products with different fineness and specifications according to the needs of customers. Therefore, it has a strong market development space.
3. Private enterprises have flexible mechanisms and strong survivability. Most of China's brass valve production and processing enterprises are private enterprises, and most of them implement corporate management, forming a first-mover advantage in the system. With this advantage, the brass valve industry economy has maintained rapid growth and has shown strong development potential. At the same time, China's industry-leading enterprises and advantageous enterprises with a long history of development mainly come from the primitive accumulation and rely less on financial support. Therefore, such enterprises are less affected by national macro policies and have strong competitive advantages.
4. Gradually improve product quality and grade. The mechanical processing in China has a history of more than 40 years. In the 1980s, mechanical processing technicians from state-owned machinery factories went to sea to establish brass valve factories. As a result, today's brass valve industry army of 50,000 people and a group of proficient machinery It manufactures special machine tools for automatic production, adopt domestic leading hot forging production technology, modern practical and efficient integrated processing technology and a new generation of electroplating surface heat treatment technology. The introduction of advanced testing equipment and plumbing established a brass valve product quality testing center, strengthening the testing of the purity of raw materials, product hardness and wear resistance, to ensure the stability of product quality.
5. The foreign trade export is expanding strongly, and the international market diversification strategy sales market needs to be strengthened urgently. Export products are concentrated in the Middle East, Europe, America, South Africa and other markets, of which the total sales in Europe and the Middle East account for about 75% of the total export volume. In this way, the sales market is too concentrated, and the products are easily saturated. In addition, in terms of sales share in the international market, very few products really enter the market through their own marketing channels, and a large number of products enter the international market through the marketing channels of foreign companies
Part 13. Conclusion
From the above contents, we can know how to select brass valves from different aspects: The basic knowledge will help to understand what is a brass valve, what types of brass valves, and what applications of brass valves can be used. The information on brass valve production and brass valve manufacturers provides the ways and options that you can choose reliable brass valve suppliers. Chinese brass valves have several advantages compared to foreign brass valves, especially the high performance price rate is invincible, that’s the reason why more and more importers and distributors are buying brass valves from China.
NAFCO, as a favorable brass valve manufacturer in China, provides quality and various brass valves for your selection. Contact us today for a price inquiry or more details needed.
