PP Butterfly Valve

It may also be considered.

.Due to the different production processes and points of seamless and welded pipe. Since the pipe welds, weld poor mechanical properties, so its scope is limited, but its price is the price cheaper. It is generally used for devices using high-pressure tubing, boiler tubes and other high temperature and pressure. Seamless steel tubes including hot-rolled, cold-rolled, cold-drawn as well as some other rare cold extrusion.4, of course, there are some on the market using the pipe joints after redrawing overall heating or seamless steel pipe with a core rolling, mainly to the small size of the main tubes are seamless belong only in appearance, its essence and Not very good The use of: seamless Steelis the use of hot and cold pull made of commonly used media pressure equal to or greater than 1.3, currently there are some pipe joints of pipe seamless process, which is to weld annealing process, eliminating the residual stress of the weld, the weld and base metal rather, its pressure range of basic and seamless quite.

It is generally used for water, gas, compressed air and other low pressure fluid;2, seamless pipe can withstand high pressure, of course, the wall thickness will also increase pressure requirements which need to be designed. There are also structural seamless pipe, which demanded to see the design. And seamless steel pipe joints are divided according to the processed forms, seam welded steel pipe generally, there are cold-drawn and hot rolled seamless steel tubes in two ways, carbon steel pipe is on the material, the galvanized pipe is welded pipe production After the surface has been galvanized How to distinguish and seamless steel pipe joints: The main difference between using:1, pipe joints generally able to withstand the maximum working pressure in less than 20 kg, which is the safest range.6MPa pipe joints after the steel plate butt welded high frequency, suitable for medium pressure less than 1. That is to say you have welded pipe joints are welded steel curl, small is generally straight seam China 3 WAY BALL VALVES Manufacturers welded, spiral welded large generally.6MPa