Stainless steel tube used in our life, or more, in the process of production is need to be polished, usually has the following three types of different polishing methods and their respective ball valve manufacturer advantages and operating steps have relations, so in choosing a polishing method or note, then we simply understand the several different ways of polishing of stainless steel pipe.

1, mechanical polishing, the advantages of this approach is actually in the processed products of flatness is better, has a high brightness.

2, the chemical polishing: it has the advantage of processing equipment investment is less, production efficiency is high anticorrosion performance.

3, electrochemical polishing: it has the advantage of bright luster to keep long and stable process, less pollution, low cost, good anticorrosion.

The use of stainless steel pipe or more after 14 needle valve the use of the time is long, is the need to check this is a critical step, in order to ensure the quality of the stainless steel pipe security so it is important to ensure that when testing the quality of the pipe. Let's to learn simple under the surface of the stainless steel pipe inspection method.

1, the surface of the stainless steel tube if there is stuff especially when having dust adhesion heating would, of course, affect scale.

2, if you have any cold on the surface of workpiece lubricating oil and so on, in trichloroethylene full degreasing degreasing agent, caustic soda solution and wash with warm water and then after heat treatment.

3, the differences between the stainless steel tube furnace atmosphere in furnace atmosphere at the local, the formation of scale will also have change, this is also the cause of uneven after pickling. So at the time of heating furnace in various parts of the same atmosphere.

4, the object of direct contact with the heating workpiece, been fully dry before using. But if placed at room temperature after drying, in the case of high humidity moisture will condense on the workpiece surface. So be drying before use.

Needle valve type good regulation performance, under normal circumstances, the adjustment of the needle valve is the scope within the context of 100 ~ 200, and the market for valve adjusting range is reached 50.

Type needle valve performance of circulation, the needle valve type of flow is the direct form, make the medium flow is no longer need to turn, to a large extent reduce the chances of the deposition of medium. Therefore 38 needle valve very suitable for high viscosity, slurry, pulp and other places of clean medium.

Good cutting performance type needle valve, needle valve type has a big feature is spherical valve core and valve seat cant contact between USES is the form of a line contact, which reduces the contact surface, further reduce the leakage rate of the valve.