China Factory PVC Flange Manual Plastic UPVC Butterfly Valve Lever Handle for Water and Acid General Application
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- Supplier: Shanghai Bomo Electromechanical Co. Ltd.Shanghai Ltd.
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Compared with traditional pipes, PVC-U pipes have the advantages of light weight, corrosion resistance, small water flow resistance, energy conservation, fast installation and low cost. They have been vigorously promoted and applied with remarkable benefits. Since the 1980s, China has piloted the application of PVC-U pipes in municipal engineering and construction projects. After more than 10 years of promotion, PVC-U pipes have made great progress, but the per capita consumption is still less than 1/15 of that of developed countries and regions such as the United States, Japan and Western Europe. With the notice of "vigorously developing chemical building materials" jointly issued by the Ministry of construction and other five departments, the promotion and application of PVC-U plastic pipes has been stepped up. Sanitary and environmental friendly PVC-U water supply pipes have continuously replaced the traditional pipes with high energy consumption, high pollution, high cost and low sanitation indicators. It is widely used in: urban tap water transmission and water supply projects, water supply projects inside and outside buildings, water supply projects for industrial and mining enterprises, buried fire water supply projects, farmland water conservancy and irrigation projects, water supply projects for gardening and greening, water supply and drainage projects for aquaculture, etc., and has achieved good economic and social benefits.
High density polyethylene (HDPE) is a white powder or granular product. It is non-toxic, tasteless, with crystallinity of 80% - 90%, softening point of 125 ~ 135 ℃, and service temperature of 100 ℃; Hardness, tensile strength and creep are better than low density polyethylene; Good wear resistance, electrical insulation, toughness and cold resistance; Good chemical stability, insoluble in any organic solvent at room temperature, resistant to acid, alkali and various salts; The film has low permeability to water vapor and air and low water absorption; The aging resistance is poor, and the resistance to environmental stress cracking is not as good as that of low-density polyethylene. In particular, thermal oxidation will degrade its performance, so antioxidants and UV absorbers must be added to the resin to improve this deficiency. The thermal deformation temperature of high-density polyethylene film under stress is low, which should be paid attention to in application.
High density polyethylene (HDPE) is a white powder or granular product. It is non-toxic, tasteless, with crystallinity of 80% - 90%, softening point of 125 ~ 135 ℃, and service temperature of 100 ℃; Hardness, tensile strength and creep are better than low density polyethylene; Good wear resistance, electrical insulation, toughness and cold resistance; Good chemical stability, insoluble in any organic solvent at room temperature, resistant to acid, alkali and various salts; The film has low permeability to water vapor and air and low water absorption; The aging resistance is poor, and the resistance to environmental stress cracking is not as good as that of low-density polyethylene. In particular, thermal oxidation will degrade its performance, so antioxidants and UV absorbers must be added to the resin to improve this deficiency. The thermal deformation temperature of high-density polyethylene film under stress is low, which should be paid attention to in application.
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Q1. Can I have a sample order for valve?
A: Yes, welcome sample order to test and check quality.Mixed samples are acceptable.
Q2. How do you ship the goods and how long does it take to arrive?
A: We usually ship by sea. It usually takes 15-20 days to arrive.Airline shipping also optional.
Q3. How to proceed an order for valve?
A: Firstly let us know your requirements or application.
Secondly We quote according to your requirements or our suggestions.
Thirdly customer confirms the samples and places deposit for formal order.
Fourthly We arrange the production.
Q4. The logo and the color can be customized?
A. Yes, we welcome you to sample custom.
Q5. Any other good service your company can provide?
A. Yes,we can provide good after-sale and fast delivery.
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