May I ask whether the process section in the instrument data sheet should be filled out by the instrumentation team or by the process team? ?
Thread Content
May I ask whether the process section in the instrument data sheet should be filled out by the instrumentation team or by the process team? ? Premise: The process engineering team has already submitted a list of instruments to the instrumentation team (including basic parameters such as pressure and temperature). Additionally, who is responsible for specifying the materials used for the valve seat, valve body, and valve core in electric valves? Should the process or instrumentation be selected based on the properties of the medium? ?
Who is responsible for specifying the materials of the valve seat, valve body, and valve core in instruments such as electric valves? Should the process or instrumentation be selected based on the properties of the medium? ? Generally, it is the manufacturer who selects the appropriate option; however, if you are confident enough, you can choose it yourself as well, or you can put forward your requirements, such as whether to apply cemented carbide coating or whether to upgrade the material used
Filled in by the instrumentation team; instrumentation team is responsible for the selection
The instrument data sheet must be filled out by the instrumentation team; those who need data from the process team can request it from that team.
Our side’s process team is only responsible for providing the control parameters for the production process; however, as for determining which instruments to use in order to meet the control requirements, that is the responsibility of the instrumentation team； For example, in the case of flow meters for transporting sulfuric acid: the requirements specified by the process include the flow range and the allowable error range ； Instrument requirements: Select the type of flow meter based on the material ； Regarding the material, select the measurement range based on the flow rate range, and choose the instrument accuracy according to the allowable error.
Minimum requirements can be set for the valve material, and the manufacturer will select the appropriate type based on these requirements
I hope this is useful to you; additionally, the forum has SHT3005-2016 for download
The data table was provided by the design department
The process engineering department provides the process parameters, while the instrumentation department fills in the details and selects the appropriate equipment based on the conditions specified by the process engineering department. The valve material and other details are specified and selected by the instrumentation team.
It has all been given to the process engineering department; is there still a need for the instrumentation department?
The more conventional approach is: first, you need a pipe grade chart, so as to have a general idea of the materials. At least you now know the material of the valve body. Then send the data sheet to the manufacturer; you provide the parameter requirements so that they can improve the materials. If there is enough accumulation, experience, and materials, one can make decisions on their own. Some foreigners have specific regulations regarding valve design, with more detailed requirements for materials, which can be reflected in the data sheets. In summary, if you’re not sure, have the manufacturer complete it and then have your own company verify it. It’s easier if you have a major in piping