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Monel alloy used for ball valve

          Monel alloy is a kind of high nickel alloy material. Its main component is 64% ~ 70% nickel and 26% ~ 33% copper. It will form a mutual fusion alloy freezing in a temperature interval in the metallurgical process, and the liquidity is poor and it is easy to promote the dispersed shrinkage. Because nickel alloy is easy to breathe mainly in H2, CO, etc. It causes further dispersed shrinkage and cause "hornet's nest" defects. What’s worse, it will connect each other and go through the whole casting. A big problem of Monel alloy in casting is that big grain promotes the shrinkage porosity impurities of the dendritic crystal separating in the boundaries. To solve this problem, a series of measures such as advanced vacuum smelting and vacuum casting is used at present, which ensures castings quality of monel alloy.

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The Monel ball valve features

               Monel ball valve features: 

1. Small flow resistance:  Ball valve is a kind of valves with smallest fluid resistance, even fluid resistance of reduced bore ball valve is fairly small.
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Electric stainless steel ball valve

           Introduction of TIPVALVE Electric stainless steel ball valve

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The tests and maintenance of buried fully welded ball valve

                 Pressure test of buried fully welded ball valve before installation

The pipeline valve of Tipvalve should have pressure test before installed, in order to ensure the safety and rigor of the valve body.
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The features of top entry ball valve

        Tipvalve TOP ENTRY BALL VALVE is mainly used in pipeline and industry system which has a top entry and on line maintenance function and a lot of advantages, such as small fluid resistance, reliable sealing, light weight, simple structure, small volume and convenience for operation and maintenance, as well as open and closing quickly.

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Analysis of body and welding material of fully welded ball valve

                 1.      The analysis of body material

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Division and selection of high temperature ball valve

             Structural advantages

High temperature ball valve is with metal elastic circle as seat sealing ring, in order to compensate for the influence of the changing external conditions such as temperature, pressure and wear on ball valve seal performance. This valve is consist of the body, ball, stem, metal valve seat, the flexible graphite sealing ring between the seat and valve body, metal elastic circle, pressure ring of metal elastic circle and gasket. One of the two seats is metal seat which can slide in embedded groove in the valve body, the other one is transformable elastic metal ring. Because of the structure, when the ball is heated and expands, the metal elastic ring can transform and make the ball not be stuck.
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Choices of high pressure ball valve material

        In order to improve the high pressure valve erosion resistance wear resistance of ability, Tipvalve usually choose corrosion materials:

  1High hardness materials
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Maintenance of the metal hard seal ball valve

              To make hard sealing ball valves have a long service life and free maintenance period, we Tipvalve make the valves work in normal working condition, keep harmonious temperature/pressure ratio, and conform to the valve body material corrosion data.

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Analysis of heat treatment methods about LCB and LCC

             Summary
LCB and LCC are kinds of the low temperature ferrite steel often used on ball valve. Low-temperature steel, according to the requirements of ASTM A352 / A352M, is suitable for the condition from -46℃0℃. The requirement of the low temperature performance is higher, because the mechanical performance of C-Mn steel will be significantly reduced in the low temperature working condition. In order to make LCB and LCC satisfy the requirement of ASTM standard, the heat treatment method has some particularity and difficulty.
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