구리 파이프 피팅 DN20 DN25 DN32 DN40 DN50

Reducing elbows are used on pipelines to connect when the size of the pipe needs to be changed at a right angle bend.
The function of a reducing elbow is to change the diameter of the pipeline when making a 90 degree turn. The function of the big and small heads is the same, but they cannot be used for turning. The price is about twice as high as an equal diameter elbow. At some construction sites, a bend and a small head are welded together to replace this product. The most common standards are the national standards GB/T12459-2005 and GB/T13401-2005

Application of valves in water treatment system:
Pressure reducing valve: it is used to regulate the pressure of tap water, ensure that the water pipe and water consuming equipment bear the pressure within the safe range and prevent excessive water pressure. 
Check valve: installed at the water pump outlet to prevent water from flowing back to the water pump and protect the water pump. 
Water mixing valve: used for mixing cold and hot water, providing constant temperature hot water, commonly used in water heater and solar system. 
Application of joints in water treatment system:
Garden irrigation: Connect faucets, water pipes and sprinklers with connectors to realize automatic watering of gardens. 
Water purifier connection: the connector is used to connect each filter element of the water purifier as well as the water inlet and outlet to facilitate assembly and maintenance. 
Water pipe connection: in a complex waterway system, connectors are used to connect hoses of different lengths to form a complete water supply network.