â—† type selection (1) When using the submersible pump for well selection, the size of the pump should be determined according to the diameter of the well (100mm, 105mm, 200mm, 250mm, 300mm, etc.). Based on the actual flow of the well, The specific specifications. (2) It is preferable to use pump type submersible pumps such as QY type, Q type and QS type when it is used for water intake in general clean water places such as shallow wells, rivers and lakes. (3) For local drainage, the water quality contains small particles of solid impurities, such as flood control and drainage, construction, farm purification, the selection of QX-type, QDX-type submersible pump more appropriate pump. (4) for the transport of sewage containing solid particles and dirt, especially with large particles of sewage sewage, should be selected WQ sewage submersible sewage pump. (5) When used for coal mining and other mining to transport sewage containing solid particles of dirt, pulverized coal, etc., must be used explosion-proof explosion-proof mining submersible pump, do not use the general submersible pump, so as to avoid Danger of explosion. â—† specifications selection Different specifications of submersible pumps have different uses. The flow rate and lift specified on the nameplate of any submersible pump are rated conditions for use with this submersible pump and are generally the best point to use. In use, with the flow, lift changes, the efficiency of submersible pumps and motor power also changes accordingly, the economy and reliability of the submersible pump to a certain extent. If the lift used is too low, the motor will overheat, long run even burn the motor; if the use of the lift is too high, the pump flow will be smaller, lower efficiency. Submersible pump generally 0.7 times to 1.2 times the normal flow rate of the normal operation. Therefore, the user is required to select appropriate submersible pump and use, you must consider the appropriate range of use, especially for high-lift submersible pumps, do not make it in the low lift point of operation, or both waste electricity, it may damage diving Electric pump. More Search Keywords: Submersible Pump
Vacuum-formed plastic is used to produce a variety of custom design parts.Vacuum forming become to be a popular and cost-effective solution for a wide range of plastic forming needs.
The product's application must be taken into consideration while selecting the material. Normal vacuum forming plastic included:Polyester, HDPE, LDPE, PVC,PETG,polypropylene, polystyrene, ABS, acrylics, polycarbonate, ASA as well as other ABS capped acrylic and ABS capped polycarbonate.
ABS plastic also named Acrylonitrile Butadiene Styrene,is the most widely used in vacuum forming and available in a range of textured, smooth and embossed finishes, offered in virgin, recycled,UV resistant and flame retardant grades(UL94-V0). As good impact resistance ABS usually is vacuum formed for vehicle,equipment,plastic tray and so on industrial.
HIPS plastic also named High Impact Polystyrene ,is most used in Point of Sale (POS), display and signage market due to its visual appearance (colour options, gloss level, texture), the ease with which it can be processed along with its antistatic and electrical conductivity.
HDPE plastic also named High-Density Polyethylene,is widely used in indoor and outdoor applications including bottles, playground equipment packaging and furniture. It is a plastic with high tensile strength, and good chemical and corrosion resistance.And it has properties of recycling,UV stabilised, improved impact resistance.
PP Plastic also named Polypropylene,is similar to PE. But PE is more harder more heat resistant.But PP is more durable.Mostly plastic tray is produced by PP plastic.
PMMA plastic also named acrylic or glass fiber.It has properties of tensile strength, transparency, polishability and UV tolerance but less impact strength.It is available in clear, antiglare, opal, white, and frosted.It is best choice for windows, displays or see-through enclosures.
PETG named Polyethylene Terephthalate Glycol is another clear rigid plastic sheet.PETG is easily vacuum formed, printed, bonded and polished. As its' excellent clarity and impact resistance, it is widely used in outdoor application.
PC named polycarbonate, has combined advantage of PMMA and ABS. Usually is transparency and semi- transparency. It is expensive but that is best choice for clear plastic vacuum forming.
ASA is one new material which has all good properties of ABS. But much good UV resistant for outdoor usage. It usually be used for radome,air conditioning housing etc outdoor products.
Meanwhile, ABS capped acylic combined the good properties of ABS and acylic. ABS capped polycarbonate combined the good properties of ABS and polycarbonate.If you need high glossy surface for your design,then this is your only choice.
Vacuum Forming Plastic,ABS Vacuum Forming,Polypropylene Vacuum Forming,HDPE Vacuum Forming,Polystyrene Vacuum Forming Dongguan Yiyongli Industrial Co.,Ltd. , https://www.dgthermoforming.com