According to the information provided by the organization, at present, China has about 22 million tons of VOCs discharged into the air, which increases at an average annual rate of 9%. Of the total VOC emissions, industrial solvents account for about 30%, and have become one of the major sources of emissions. The emission of paint and adhesive VOCs accounts for about 70% of industrial solvents, and the total annual emissions reach 4 million tons. In recent years, reducing paint VOC emissions has been the focus of attention in the industry, and reducing the proportion of industrial solvents in coatings has also become the focus of research and development. The application of water-based paints and other products makes it possible to solve this problem. In fact, the Chinese market is no stranger to the word “waterâ€. In 1996, Doufang Paint entered the Chinese market and ended the history of waterless paint in China. At present, in the domestic market, waterborne coatings such as home furnishings have already emerged in the civil sector, but the promotion is still not widespread; in the automotive, electronics, textiles and communications products and other industrial areas, progress is slow.
According to Ding Zhonghua, the general manager of DSM Licorne Greater China, the application of water-based coating products in China's industrial sector is still very small, accounting for only 5% to 10% of the total industrial coatings, which is far below 30% in Europe and the United States. ~40%. China still has a long way to promote water-based coatings. Bayer Coatings, Adhesives and Specialty Chemicals Greater China General Manager Li Yulin believes that the difficulty in promoting water-based coatings in China is that the paint industry's laws and policies reflect the concept of environmental protection is still very limited, and some of the current regulations are far out of date. Moreover, many small and medium-sized paint manufacturers still have certain obstacles in the mastery and development of water-based technologies. In addition, due to the inherent concept of people, coupled with many companies have reached a level of proficiency in the construction of solvent-based paint, and water-based paint construction is negative or slow heat.
Huang Jinyan, President of Hong Kong Yip's Chemical Group Co., Ltd. believes that water-based coatings have become the trend of the world's paint industry. The proportion of scientific research on water-based coatings is growing, technological achievements are getting more and more, and the level of technology is getting higher. . At present, the performance of domestic water-based paints has completely reached the level of solvent-based paints.
At present, the main reason that hinders the adoption of waterborne coatings is the lack of standards. Therefore, China should introduce relevant support policies as soon as possible and establish a corresponding standard system. This is a consensus reached by 13 companies. They think this is an important driving force for the promotion of water-based coatings. Qian Borong, chief engineer of CNOOC's Changzhou Coatings Research Institute, believes that there are many brands on the market that are labeling “zero†VOCs. In fact, this argument is unscientific. Because the “undetected†in the test report can only indicate that the content is lower than the detection limit of the used test standard, it cannot be interpreted as “zeroâ€. When more advanced detection methods are used, they can still be detected. In addition, there is no real standard basis for the “zero VOCâ€, “ultra-low VOCâ€, and “low VOC†coatings on the market.
According to experts, the increasingly stringent VOC emission standards in industrialized countries in Europe and America have led to changes in the entire paint and adhesive industry. Through technology upgrades, companies seek ways to effectively reduce VOC emissions while ensuring product performance. The foreign paint industry is in an important period of technological progress. The strengthening of environmental protection regulations has promoted the adjustment of the structure of paint products. Traditional solvent-based coatings have gradually decreased, and high-performance, low-pollution waterborne coatings have grown rapidly. Today's environmentally friendly water-based paints and adhesive products have been widely used in developed countries and have penetrated into various fields. International research shows that from 1990 to 2003, the total VOC emissions of the European paint industry fell by 28%.
Since 2001, China has formulated two standards for the coating industry, GB18581 and GB18582, which have played an important role in promoting the technological development of the coatings industry. According to Qian Borong, the ongoing project to establish a standard system for low-pollution paints in China stipulates that from the specific products to the raw materials, to the solvent, etc., relevant regulations will be made. The promulgation of these laws and standards requires companies to continuously carry out technological innovations and provide top-down policy support for the VOC emission reduction in the paint industry.
The person in charge of the Ministry of Environmental Protection stated that from the perspective of national policy makers, VOCs should be controlled as an important environmental factor and the corresponding environmental standards should be raised. At present, there are many domestic companies whose products have not reached the international advanced level, but will certainly put VOC as a controlling factor in the future.
The Style PVR pressure/Vacuum Relief Valve is a Sanitary Valve designed specifically for the brewing, beverage, food processing and pharmaceutical industries.
l Self-actuated operation.
l Relieves excess air or gas pressure.
l Relieves excess liquid pressure in the absence of air or gas blanketing.
l Designed to prevent vacuum formation that could cause the vessel to buckle.
l Body and all internal parts designed to operate after exposure to process fluids and withstand direct flushing and cleansing of sterilizing agents, caustics, water or steam.
l Allows complete drainage after operation and/or flushing and minimizes crevices which might trap contaminants or promote freezing in cold environments.
l All materials are corrosion resistant and all exposed surface finishes are controlled to enhance sanitary features.
1. Size: 1/2"- 6"
2. Material: SS304, SS316L
3. Standard: SMS,DIN,3A,IDF,ISO or according to customer request.
4. Connection: Butt-welded,clamped,threaded
5. Cartridge and body: Forge
6. Seal: Food Rubber
FAQ:
1.Are you a trader or manufactory?
We are a manufactory (Own Forging workshop and CNC machining workshop )
2.Can your products reach to FDA , CE and 3A requirements?
Yes, all of our material can reach to the requirements of FDA, ISO and 3A Certificate).
3.We can supply:
Sanitary Butterfly Valve, Sanitary Check Valve and Diaphragm Valves, as well as Various Tank Accessories: Sight Glass, Strainers/Filter, Cleaning Ball, And other Pipe Fittings , (Pipe Unions: SMS, DIN, IDF, RJT, 3A,DS; Fittings: Ferrule,Elbow, Tee, Reducer and all other Non-standrad fittings), each products are tested well by our strictly Quality Control System, and we also have excellent service to support you and promote your business.
4.Lead Time:
For large quantity, as usual, it can be sent out within 20-40 days.
Small parcel will be dispatched by DHL, FedEx, UPS OR TNT Courier.
Big cargo will be delivered by Air freight or By Sea.
5.Our Service:
About payment:
Payment methods: L/C, T/ T, Paypal,Western Union
6.About samples:
We can provide samples production and service. Usually 2 to 5 days, the sample can be sent to your hands. We will choose the shipping way as you required: By sea, by air or by express. Any question about samples, please contact us.
7.For OEM products:
We will finish the production within 20-40 days after payment has been confirmed.
About delivery and shipping:
We will choose the delivery way as you required: By sea, by air, by express ect. Save your cost is our mission.
8.Warranty:
Any question or problem will be respond within 12 hours.
9.Lifetime service:
Any problem happened to our product, we will do our best to help client to solve it, spare parts will be half price in lifetime.
10.Problem solve:
If you can't solve the problem in your local, please delivery the product to us, we will repair it and then back to you.
11.Quality control:
All the products are calibrated with real working condition, and tested before shipping as qualified product.
12.Purpose:Attitude is everything.
Tank Pressure Vacuum Relief Valve
Vacuum Relief Valve,Stainless Steel Relief Valves,Stainless Steel Valve,Pressure Relief Valve
Wenzhou Qili Fluid Equipment Co., Ltd. , http://www.qlssvalve.com