Valve Body is a main component in the valve. According to the pressure level, there are different mechanical manufacturing methods. For example: casting, forging, etc.
The valve body of medium and low pressure specification usually adopts casting process to produce valve body.
Definition
The "valve" is defined as a equipment in a fluid system to control the direction, pressure, and flow of the fluid. A valve is a device that control the medium (liquid, gas, powder) to flow or stop and control its flow in the piping and equipment
Construction and feature
The
construction is to be built according to the drawing with rules of good
workmanship.
The hydraulically operated gate valves are
built of a welded steel construction (stress released) for a wide range of
inner pipe diameter and working pressure.
Feature:
1.The dredge valve is designed in such a
way that there are no fasteners inside the body
Materials
All
fabricated steelwork used in the construction will be to manufacturing standard
of normal or classification society.
All
materials proposed will be selected to comply with the latest Health and Safety
Rules.
Paint
systems for hull protection will be of the highest quality (Hempel, Inter,
Sigma, Jotun)
Valve Body Automatic Valve Body,Auto Valve Body,Trans Valve Body,Transmission Valve Body Unisite Group Ltd. , http://www.shipsparts.nl
In this spring light fair, it is not difficult to find that most LED indoor lighting companies from Zhongshan have more or less LED bulbs. Many Zhongshan exhibitors mainly use LED bulbs, especially plastic bulbs. In addition to LED bulbs, LED LED ceiling lamps, LED downlights, LED fluorescent tubes, and LED panel lights are in turn. In this spring light fair, it is not difficult to find that most LED indoor lighting companies from Zhongshan have more or less LED bulbs. Many Zhongshan exhibitors mainly use LED bulbs, especially plastic bulbs. In addition to LED bulbs, LED LED ceiling lamps, LED downlights, LED fluorescent tubes, and LED panel lights are in turn. At present, LED bulb manufacturers are mainly concentrated in Zhongshan City, Jiangmen City, Foshan City and so on. Outside of Guangdong Province, there are fewer companies that focus on LED bulbs, and it is more difficult to see a wider LED bulb market. In addition, many exhibitors in Shenzhen mainly use LED panel lights, followed by LED bulbs and LED fluorescent tubes. There are very few Shenzhen enterprises that mainly focus on LED ceiling lamps.
In order to become familiar with the lighting stars who often attend the various exhibition screens, Xiao Bian analyzes the current status of these stars, and wonders how they will write their lighting trajectory on the 2014 LED screen. Let us watch the explosive growth of the bulb market. Whether it is the Hong Kong Spring Lighting Fair or the Spring Fair, LED bulbs have become the protagonists of exhibitors.
At the meeting, a number of exhibitors who featured LED bulbs were interviewed. The exhibitors surveyed said that the sales of LED bulbs have increased significantly this year. It is observed that both foreigners and compatriots are very concerned about LED bulbs. For example, in the booth of the light bulb king, everyone saw the crowds constantly moving in and out of their booths. The flow of the river continued, and there were dozens or dozens of merchants visiting at all times. The main reason was that the LED bulbs of the company were fashionable and beautiful. And they all have patents. The three designers were attracted by the light bulb king and told the industry that they are quite optimistic about the LED bulb market this year.
This year, the LED bulb market began to break out, and the demand has increased greatly. Now the price of LED bulbs and energy-saving lamps is almost balanced. 3W LED bulbs are cheaper than 9W energy-saving lamps. Zhongshan Shenghong, which specializes in producing LED bulbs. The person in charge of the lighting booth said that the current LED bulb is equivalent to the energy-saving lamp five years ago. However, the demand for energy-saving lamps is high, and the cost of labor is high. Nowadays, the scale of the industry is shrinking, and the energy-saving lamps enterprises are transforming. The predecessor of Shenghong Lighting is also producing energy-saving lamps. Now LED development is more mature, and consumers are easy to accept. It has quickly spread in the market and has entered thousands of households. At present, many companies in the market are doing LED bulbs.
Due to market demand, the person in charge of Zhongshan Guangdao Lighting, which began to extend from the packaging field to the finished product last year, also said that sales have increased significantly this year. Last year, wholesalers purchased hundreds of products each time, and now they are all 1000 or 2000.
Plastic LED bulbs are undoubtedly the mainstream, plastic LED bulbs have become the mainstream in the bulb market. Seen at the Spring Fair, the fact is true. Many exhibitors exhibited all-plastic LED bulbs.
At the Spring Fair, 90 LED bulbs and enclosures are made of plastic, but at the Hong Kong Spring Lighting Fair, the general casing is plastic and the lampshade is glass. Not only domestic merchants, but some foreign merchants prefer LED bulbs that prefer plastic-shell plastic shades. For example, Indian customers do not like expensive products.
The better quality LED bulb will choose PC engineering plastics. The person in charge of Zhongshan Shenghong Lighting booth said that it uses PC plastic. This material has replaced the aluminum shell LED bulb, because PC plastic is more plastic and environmentally friendly. Electrical safety, in addition, the current technology of packaging lamp beads is quite mature, the heat dissipation effect has solved the aluminum parts process, and the cost and price of plastics are relatively cheap. Therefore, many Zhongshan enterprises prefer all-plastic LED bulbs. As for the lampshade, there is plastic and glass. The person in charge of Zhongshan Guangdao Lighting told the reporter that the product grade of the lampshade is much higher than that of the plastic lampshade. The heat dissipation, light transmittance and aesthetics are higher, especially for warm white LED light source. Lampshade, this LED bulb is suitable for crystal lamps. At present, LED bulbs of plastic shell plastic lampshade are more, because the plastic assembly is fast, not afraid of falling, and the cost is low. If the plastic solves the heat dissipation problem, it is estimated that few manufacturers use the glass lampshade.
Ceramic LED bulbs became non-mainstream at the show, and some exhibitors saw LED bulbs and LED bulbs in ceramic enclosures. Qiguan Lighting is a typical example. It is the only exhibitor to introduce LED filament lamps in this spring light fair. Through interviews, it was found that the original Qiguan lighting was mainly based on ceramic shell LED bulbs. Although there were also plastic shell LED bulbs, the sales of ceramic shell LED bulbs were even higher. At present, the plastic shell LED bulbs only do 5W and 7W, and the price is nearly 1/3 higher than other manufacturers.
However, exhibitors with LED bulbs said that ceramics is playing with the concept. Indeed, the thermal conductivity of ceramics is relatively high, but it is inconvenient to transport in terms of volume and weight. In the market, plastic LED bulbs are in line with the market. trend.
Market development status Due to the advantages of energy saving, no stroboscopic, no noise, and not easy to see fatigue, LED lighting has been rapidly developed in the field of public lighting, and will be active in the field of household lighting. In 2012, China's LED indoor lighting market was 33.5 billion yuan, an increase of 80% year-on-year. Among them, LED commercial lighting contributed about 60, and the market scale exceeded 20 billion yuan.
According to the survey data, the sales volume of China's LED lamp market reached 10 billion yuan in 2012 (excluding Hong Kong and Taiwan, the same below), which is an increase from the 5.2 billion yuan in 2011. 92. The sales volume of LED lamp market will reach in 2013. 16.1 billion yuan. Market demand will continue to be strong. It is estimated that by 2017, the LED lamp market will reach 44.5 billion yuan.
The strong demand for indoor commercial lighting has also driven the market for lighting kit materials. At present, LED lighting products have achieved rapid development in the commercial lighting market, and opened the market for the corresponding lamp housings and accessories.
There are many LED lighting manufacturers in China, and there are many demand for accessories. The accessory manufacturers can take advantage of the market development opportunity to expand the development of the products. At the same time, we must take into account the product quality and aim at the overall long-term development, and develop the LED lighting market. .
The LED tube infiltration rate will be 27.8 in 2014.
With the decline in LED prices and the year-on-year increase in LED light efficiency, the acquisition cost recovery cycle has been significantly shortened, driving the global commercial and public sector to change lamps to a greater willingness to officially launch the global LED light source replacement tide, including bulbs and lights. Alternative light source products such as tubes are most popular in the market. At the beginning of 2014, the main lighting manufacturers in Japan released a number of new LED straight tube lamps (including BaseLight). If they are in terms of specifications, they will be greatly improved from the previous generation products. If we look at the product line drawing, the focus of the lighting factory is from the original Home lighting is gradually turning to office and business lighting.
From the distribution of the luminous efficiency of LED straight tube lamps sold in the Japanese market, 41.7 items fall between 80 lm/W and 99 lm/W. However, if new products are introduced by major Japanese lighting manufacturers, the luminous efficiency is as high as 160 lm/W. Including (including), among them, Rohm's 190lm/W is the highest among all operators; in other words, compared with the commercially available bulk products, the new product has a luminous efficiency higher than 60, and the main reason is to shorten the purchaser's investment recovery period to 2 In the year, especially in offices and public places, the higher the lighting power saving requirements, the more efficient lighting is necessary.
Japan's lighting industry LED straight tube lamp new products to the high specification development, but also expand this product line, Japan's largest lighting factory Panasonic estimates that 2014 BaseLight lighting sales will see 2 million units, an increase of about 100 compared with 2013 And IrisOhyama, which recently cooperated with Philips, estimates that LED lighting will account for 63% of total lighting revenue.
From the perspective of Japanese LED lighting products, the annual shipment of LED bulbs has declined slightly. However, in terms of LED straight tube lamps, industry research institutions estimate that the penetration rate will be less than 30 in 2014. In other words, potential future development space. Quite large, this is also the reason why Japanese lighting industry wants to expand the LED straight tube lamp product line.
From outdoor lighting to indoor lighting, from commercial lighting to office lighting to home lighting, the development of LED lighting is fast and staggering. At this stage, the LED ceiling lamp has overtaken the curve, becoming the most demanding product in the LED home lighting market. So, how effective is the performance of LED ceiling lamps in the terminal market? In order to seize more market share, what are the killers? Let us walk in together.
LED home lighting development is unstoppable With the implementation of the global incandescent lamp ban policy in 2012-2014, the incandescent lamp market is gradually shrinking, and it also gives LED products a good opportunity to show their talents. Therefore, some insiders predict that after two years, LED home lighting will enter people's daily life with an outbreak. Relevant data show that in 2012, more than 75 traditional lighting companies have begun to get involved in the production of LED lighting products. In 2013, this proportion continued to climb. In the proportion of continued rise, the market for LED home lighting has also developed.
First, the number of companies that have transformed traditional home lighting into LED home lighting is increasing.
Second, emerging LED lighting companies are constantly pouring into the LED home lighting market.
Third, the proportion of LED home lighting products continues to rise.
In the next two years, the development of LED home lighting will be unstoppable, which is the consensus reached by many manufacturers. Before this great situation comes, companies are constantly looking for new opportunities to achieve breakthroughs.
The rapid increase in market penetration has plagued the majority of manufacturers. At present, LED home lighting has not yet been burned, and the sales of LED ceiling lamps in the terminal market are very hot. It is widely used to replace traditional ceiling lamps, and its sales share is also high in LED home lighting products, and it has risen in a straight line, and has even become a fist product for many companies to seize market share.
For example, in 2013, the sales of LED ceiling lamps accounted for 5.6 of the sales of Guoxing photoelectric lighting products, an increase of 33.3 compared with last year, and the growth momentum was strong. It is one of the top three categories of Guoxing photoelectric products growth; Hongyan LED ceiling lamps Product sales accounted for about 10% of the total sales of LED products; as the top ten indoor lighting products of Auman, the sales volume of LED ceiling lamps in foreign markets has been increasing, increasing by 30 over the previous year; Zhongshan Chimeiao (Bai Nian) Sales of LED ceiling lamps accounted for 70% of total LED products sales, an increase of 60% over the same period of last year; sales of Shanghai Luyuan LED ceiling lamps increased by 30% compared with the same period of last year; sales of Otlan LED ceiling lamps accounted for total sales of LED products. The growth momentum of 15 LED ceiling lamps is strong, and there is no doubt about it; its market development prospects are good, no doubt. Fangke, manager of Hongyan Lighting Marketing Department, said that the market for traditional lighting ceiling lamps is gradually being infiltrated by LED ceiling lamps, and the proportion of end consumers accepting LED products is also rising. According to the current market replacement speed, it is expected that in 2015, LED The market penetration rate of ceiling lamps will reach 50 or more. Tian Bo, director of operation of Yiguang Lighting Products, also said that at this stage, the LED ceiling lamp market is in the stage of rapidly replacing traditional ceiling lamps, and the market demand is developing in a blowout manner.
Industry veterans analyzed the reasons for the rapid penetration of the LED ceiling lamp market:
First, with the continuous maturity of LED application technology, the quality of LED ceiling lamps has gradually stabilized and costs have continued to decline. LED ceiling lamps are swallowing the market share of traditional ceiling lamps at the rate of encroachment. According to Yuan Guanfeng, general manager of Gulang Lighting, Guzheng, this year, the price of LED ceiling lamps has dropped by nearly 60. The price of lamp beads on the market is more than 8 yuan per watt in mid-to-high-end, and about 5 yuan per watt in mid-range. Most of them are less than 3 yuan per watt. Second, the price of LED ceiling lamps is getting closer to the people, and the market resistance is decreasing. Taking 12W LED ceiling lamps as an example, the market price of Guoxing Optoelectronics is 120 yuan per piece, which is about 18 compared with the same period of last year; Shanghai Luyuan is 50 yuan per piece, which is 35 compared with the same period of last year; Shenzhen The market price of Huayuan Lighting is 120 yuan/piece, which is 20% lower than that of the same period of last year. Although the price of LED ceiling lamps has been far different from the price of traditional ceiling lamps, the gap has narrowed significantly. In particular, the price of low-end LED ceiling lamps has dropped significantly.
2.Dredge valve is made of fabricated high tensile steel and cast steel
3.The dredge valve gate is made of corrosion resistant and hard steel
4.All dredge valves are operated by hydraulic cylinder located on the top of
the dredge valve
5.The dredge valve body is stiffened with T-bars
6.The dredge valve body is is provided with inspection holes on both sides
7.Steel reinforced rubber seals are used to seal the pipe when the gate is down
8.Seals can be used both sides and turned in opposite direction when worn out
9.The rubber seals are hardened where necessary to increase the life time of
the seals
10.All connections outside the body are bolts and nuts
11.The fabricated body is made from high tensile steel
12.Two flushing pipes are provided in the lower body of the dredge valve
13.Hoisting lugs are provided on the top of the body
14.Different duties being 10 bar, 20 bar and 30 bar to fit the right
application
15.Easy handling and installation due to hosting lugs and compact design