Double Handles Bathroom Faucet 1. Copper body: As far as the faucet is concerned, copper has long become the preferred material, mainly because the antibacterial effect of copper media has long been recognized by authoritative laboratories. Most high-end bathroom brands use copper as the body of the faucet, and the elimination of other materials has become an inevitable trend. Rain Shower Faucet,Single Handle Bathroom Faucet,Single Handle Bathroom Mixer,Single Handle Rain Shower WENZHOU CHENKAI SANITARY WARE CO.,LTD , https://www.cnchenkai.com
2. Electroplating: The quality of the electroplating surface is the most intuitive expression of the quality of the faucet. The surface plating is mainly nickel and chromium, so that it achieves a smooth and bright effect. Good quality faucets will undergo many tests, such as salt spray test, water test test, gas test test, etc., to ensure the durability of the faucet. After high-precision plating faucet, durability is basic, and more importantly, its surface gloss is good and comfortable to handle. Some high-grade faucets have other different treatment techniques, such as stainless steel and satin.
3. Filter screen: In areas where the water quality is not superior, the installation of the filter screen can reduce and filter impurities, and at the same time prevent the possible damage caused by impurities to the ceramic valve core. There are two installation locations for the filter: the water inlet and the spout.
4. Rotation angle: can rotate 180 degrees to make the work convenient, and can rotate 360 degrees is only meaningful for a sink placed in the center of the house.
5. Can lengthen the shower head: increase the effective radius, increase more functional possibilities, and the sink and container can be filled faster. In order not to make unpleasant noises, metal pipes should be avoided as much as possible.
6. Water pipe length: Experience shows that 50 cm long pipes are enough, and pipes of 70 cm or more can also be bought on the market.
7. Anti-calcification system: calcium will be deposited in both the shower head and the automatic cleaning system, and the same situation will occur on the faucet, where silicon will accumulate. The integrated air cleaner has an anti-calcification system that prevents calcification of the device internally.
8. Anti-backflow system: This system prevents dirty water from being sucked into the clean water pipe, which is composed of layers of materials. Devices equipped with an anti-backflow system will display the DVGM pass mark on the surface of the package.
9. Material: Stainless steel is hygienic and environmentally friendly. Chromium devices are easy to care for and harmless to people, but other elements need to be added to the manufacturing process. Therefore, it must be paid attention to what materials the equipment is made of, and not all countries have such high standards as Germany.
10. Durability: The anti-calcification system can protect the equipment from the danger of water leakage and handle damage.
Pump classification, pump classification
Pump Category: Pumps are machines that convert the mechanical energy of the prime mover into liquid energy. The prime mover (motor, diesel engine, etc.) drives the impeller to rotate through the pump shaft to work on the liquid to increase the energy (including potential energy, pressure energy and kinetic energy) so that the liquid can be transported to a high place or where pressure is required. Pump classification and technical performance in accordance with the principle of the pump can be divided into power pumps, positive displacement pumps and other types of pumps 1. Centrifugal pump basic performance parameters for the flow Q (m3 / h, L / h), head H (m), allowable cavitation margin △ hr (m), speed n Efficiency η. These pumps are simple in construction and light in weight, delivering clear water at temperatures up to 80 ° C and liquids that are physically and chemically similar to water. 2. Axial flow pump axial flow pump is mostly single-stage, can be divided into fixed blade and adjustable blade two. 3. Vortex pump Compared with the centrifugal pump, the same impeller diameter and speed, the vortex pump head 2 to 4 times higher than the centrifugal pump, but its efficiency is low, usually only 20% to 50%. Vortex pump fluid clean, low viscosity, non-solid particles. 4. Reciprocating pump reciprocating pump with electric pump, direct acting pump, diaphragm pump, metering pump four. 5. Screw pump Screw pump is characterized by small fluctuations in flow and pressure, small noise, long life, self-priming capability, simple structure and compact. A single screw pump, twin screw pump and three screw pump points. 6. Gear pump gear pump is simple, easy to manufacture, reliable, easy maintenance, self-priming, but the flow and pressure pulsation and noise larger. Gear pump is suitable for conveying a variety of liquids without solid particles, the viscosity of the transport liquid range is very wide, high pressure liquid can be transported. 7. Liquid ring pump liquid ring pump is a fluid conveying fluid machinery. Liquid ring pump working fluid often water, sulfuric acid, oil and so on. Liquid ring vacuum pump commonly used in vacuum evaporation, drying, water pump and so on. Liquid ring compressor is mainly used for pressure delivery of gas, ethylene, chlorine, oxygen and so on. 8. Vacuum Pump There are many types of vacuum pumps, reciprocating with empty pump, rotary vacuum pump, Roots vacuum pump and jet vacuum pump.