Corrosion resistance pump valve flange corrosion problem how to solve ！！！！ Market Analysis: Pump Valve Market Supply and demand in July and August

Corrosion resistance pump valve flange corrosion problem how to solve ！！！！ Market Analysis: Pump Valve Market Supply and demand in July and August

Corrosion resistant predictably pump forhandling corrosive liquid is used in the corrosion of pump, corrosion-resistant pump generally have fluorine plastic centrifugal pump, fluorine plastic magnetic pump, stainless steel centrifugal pump, stainless steel magnetic pump, etc., for corrosion resistance of the pump connection equipment, valve, flange, pipeline corrosion problems such as how to solve, for pipeline corrosion resistant materials when laying pipeline basic problems will not be huge, This is not the case with valves and flanges, where the integrity of the flanged connection is critical to the piping system that delivers fluid. Whether piping systems transporting chemical media (such as hydrocarbons) or water supply lines, leakage of flange connections can cause serious environmental and economic impacts, and can even bring significant safety hazards. If flanges are not protected and exposed to corrosive environments or contaminated industrial atmospheres, corrosion rates can be rapid. In addition, due to the complex geometry of flange connection, it is easy to appear the gap corrosion between two flange faces and the galvanic corrosion between different metals, which will seriously damage the integrity of the pipeline system. This paper introduces several practical methods to solve the flange corrosion.
In order to meet the demanding production needs and reduce the sudden shutdown caused by leakage, effective monitoring and detection is essential. Usually, technicians are more concerned about the leakage problem between flange surfaces, and ignore the protection of fasteners and pipes, which may cause extremely serious consequences in the harsh external environment. Insufficient external protection will accelerate and expand the damage of the flange and fasteners, so that the entire sealing system accelerated deterioration, may quickly destroy the structural integrity of the system, resulting in seal failure.
Since visual inspection of the sealing surface of the flange connection can only be performed when the whole system is down, the inspection procedure should be as simple as possible, and therefore external corrosion should be eliminated first. If the machine is not shut down, the ultrasonic technology can only be used to detect, in the case of external corrosion is not controlled, the process will be more complex and not fine test results. Therefore, external corrosion protection of flanges and fasteners is essential in order to monitor the overall system and provide effective and feasible quality control and maintenance procedures.
Existing solutions to flange corrosion problem
1, hot melt plastic solution
Hot melt plastic is essentially a kind of waxy fusible polymer heated at high temperature, which is sprayed onto the substrate surface by professional hot melt equipment. The advantage of this type of protection is that it can be remelted and reused, saving costs. However, this method also requires hot work, professional equipment and construction services. Although it can be reused, it is not easy to open and seal during maintenance.
2. Polymer sealed bag solution
The flanges can be completely wrapped in a ziplocking bag, which is composed of a low-permeability polymer, corrosion inhibitor vapor and desiccant. It is easy to install, but the ends of the bag are sealed with tape instead of a durable mechanical bond. There is a large area of steam space inside the bag, easy to collect a large amount of moisture, corrosion inhibitor will be consumed over a period of time.
3. Mechanical solutions
The flange and the clearance of the flange surface are sealed mainly through the protective cover and fixture, usually stainless steel or plastic material with rubber seal. This type of protection is less flexible and requires storage of enclosures or clamps that exactly match flanges of various sizes.
4. Adhesive tape or semi-solid anti-corrosion tape solution
Tape in rolls (such as mineral fat tape, wax or elastic polymer tape) is protected by wrapping around the surface of the substrate. This type of protection can provide reliable protection against corrosion due to the better water resistance of semi-solid polymers.
5. Maintain paint solutions
Maintenance paint is a hard film that can be directly bonded to the substrate, usually epoxy or polyurethane paint. Flanges have many edges and edges, which are difficult to cover effectively with conventional paint systems due to the edge thinning effect. Although the thickening coating will solve the problem of edge protection, it will seal the fastener and make it impossible to disassemble during subsequent maintenance. In addition, handling bolts can damage the coating and must be repainted after repair.
On the supply side, the supply of centrifugal pump market in July and August is the same, maintaining a position; In terms of market demand, the centrifugal pump market in August compared with July, slightly more active, during the Olympic Games, the centrifugal pump market demand also had a brief rise, so that the oversupply situation is very obvious.
On the eve of the Olympic Games, Qingdao Olympic sailing competition appear a large number of enteromorpha, Qingdao port and waterway bureau using Switzerland a special pump technology, the successful transformation for eight landing ships, all equipped with advanced centrifugal pump, the ocean’s surface enteromorpha about 13 square kilometers, “centrifugal pump” has become the main force of Qingdao Olympic sailing competition salvage enteromorpha, sailing regatta stay tuned enteromorpha salvage events.
The sewerage pump market performance in July and August was very quiet, without big fluctuations, and the supply and demand ratio was moderate.
In August, when typhoons are constantly creating momentum, sewage pumps have also become a contribution to alleviating the torrential rain in Shanghai. Due to the raging of the typhoon and the drainage problems of Shanghai road surface, the torrential rain in Shanghai is caused. Therefore, sewage pumps and drainage pumps are needed to solve the drainage problems of road surface and sewage in time.
Concrete pump market, for a long time are slightly more than the state of purchase.
The concrete pump market showed no major fluctuations in supply and demand in August, with supply rising slightly.
Sany’s heavy industry products have set a new record for the concrete pump market.
On August 28, SANY Equipment, one of the world’s top high TV towers — Guangzhou New TV Tower ** cylinder, was successfully topped. The construction party used 2 HBT90C2122D, 3 HBT90CH2135D and 2 HG38B material rods to carry out the concrete pumping task of the main tower, 100% of the concrete pumping equipment is SANY equipment.
At the same time, SANY has set up a special service team to provide the pumping construction scheme to escort the smooth pumping of concrete.
The market supply of vacuum pumps in August was significantly lower than in July, as can be seen in the figure above.
The vacuum pump market even oversupplied in July. Manufacturers should pay attention to a certain amount of output contraction. The vacuum pump market eased slightly in August, and the August market to buy basically flat.
Other pump product markets, such as metering pumps, diaphragm pumps, and submersible pumps, remain oversupplied.
August, is the world’s attention of the 2008 Beijing Olympic Games in the opening month, the Olympic feast is constantly staged, people in the heart and joy of a memorable Beijing August.
We will remember those Olympic heroes and thank those behind the scenes who supported the Games.
The valve market in July and August is full of “bulge”.
The market demand for butterfly valve products has always been high, overwhelming the crowd. The market demand for butterfly valve in August has increased significantly compared with July, and the demand for butterfly valve from buyers continues to rise.
Under the premise that the supply market remains unchanged, the acceleration of this demand increases the contradiction between supply and demand in the butterfly valve market. Butterfly valve manufacturers need to strengthen the understanding of the market and start production around the demand.
State High Pressure Valve Co., Ltd. plans to invest in the completion of a large butterfly valve and ball valve industrial base in 2009.
With the development of the market, the demand for large butterfly valves and ball valves is increasing. However, due to the aging and unmatched existing production equipment of the company, it is difficult to configure tooling, and only a single small batch production.
Therefore, the company decided to adjust the product structure this year, establish an industrial base for the development and production of large butterfly valves and ball valves, and further increase the development and production of high performance butterfly valves and ball valves, so that they will become our fist products and bring great economic benefits into play.
Hai Ai blue industrial equipment company recently launched “Welcome the Olympic Games, happy feedback to customers” “activity, the company’s pneumatic two-piece flanged ball valve products, manual clamp lining rubber butterfly valve, supply manual clamp lining rubber butterfly valve and other most valve products, summer special offers, please see the details for the Beijing Olympic Games gift Hai Ai blue valve preferential.
Contrast with butterfly valve, ball valve market power calm, no ups and downs, July, August of market supply and market demand is not too big change, like butterfly valve, ball valve is also market demand greater than supply, in the face of a good pray too for the situation, our manufacturers should seize the opportunity, develop customers need products and eat the delicious cake market.
This issue launched simple structure simple operation ball valve quality product guide, please pay more attention to! Throttle valve and control valve have always been the valve products that people pay more attention to. There is not much difference in market supply and demand of regulator and control valve. It can be seen from Figure 2 that the market purchase of regulator increased slightly in August, and the supply was basically flat. Control valve market supply and demand to maintain at a level.
Again at the end of the Olympic Games in August, the regulator’s salvation, for the main Olympic torch is a natural gas sources, quenching process used remote control electric regulator technology, and according to the proportional control methods such as adjusting control to fuel gas flow, the end makes 8 meters high uniform reduce until all put out the flame, there is no doubt for the regulator added a glorious history.
Solenoid valve market conditions in July and July, slightly less.
On the demand side of the market, there was a decline in August, on the supply side of the market, there was still a low level in August, although the demand was greater than the supply, but the gap between supply and demand decreased in August.
The DEMAND MARKET FOR GLOBE VALVES DECREASED IN August, BUT THE DEMAND IS STILL outSTRIPPING the supply market, which still maintains a good market momentum.
Recently, much attention has been paid to the nuclear power industry, nuclear power valve accessories products is closely related to nuclear power projects, promote the localization of nuclear power pump valve, not a slogan, but a request, we are looking forward to more pump valve manufacturer to understand in the rapid development of China’s nuclear power pump valve, actively improve pump valve of the technological content of products, towards nuclear power parts localization efforts, An early realization of self-sufficiency in nuclear power accessories.
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