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We solve the problems of wedge fitting in the cast gate valve bodies

We solve wedge fitting problems in gate bodies.

Usually in cast gate bodies where the guides are part of the casting, it is detected that the geometry of the guides is irregular. This is not normally a surface where machining is foreseen, but in the assembly process when the wedge is placed, problems are generated. These problems result in the need to rework the affected surfaces of the guide with the technical difficulty that this implies and the delay due to the paralyzation of the valve assembly, in addition to the extra costs derived from this process.

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Given the problems experienced by our customers, we analyzed the technical possibilities of incorporating a process that would guarantee the client that the surface of the guide would not generate any problems in the assembly process due to irregularities in the material. ARRI incorporated in its Trevisan park some angular heads that allow to assure the geometry of the guides by means of a machining operation. This machining operation is carried out on the same machine, using the same tooling and without generating delays or additional machine preparations. Therefore, the finished part comes out of a single machine that incorporates an operation that guarantees the wedge accommodation.

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Benefits for valve machining

The customer benefits by avoiding a delay in the assembly process that can reach up to 40% impact on the initially established deadline. Transporting a finished part that is in the assembly process is always a risky operation that can lead to complications. Therefore, the customer, in addition to the assurance of the deadline, obtains savings in reprocessing costs that can be 15% or much higher depending on the complexity of the operation.