The below table is a ball valve enquiry from our customer. It is a sample. And it is no need to inform full information, but please try to inform the working situation so that we can make the choice. And please pay attention as below:

Valve Size : Nominal size of the pipeline into which the valve will be placed must be determined.
Valve Material : The facts should be considered in determining the correct valve material, likely the medium, temperature range, pressure range, possible atmospheric conditions and extraordinary stresses, safety standards and or piping code etc.
Valve Type : What is the control function of the valve? Gate valve, globe valve, check valve, ball valve, butterfly valve, plug valve etc.
Pressure-Temperature Ratings : Please pay careful attention that the pressure-temperature ratings of a particular valve are in keeping with the requirements of the service. Also please pay attention to the packing and gasket materials as necessary to meet or exceed your service requirements.
Valve and Connections : Considerations as to pipeline integrity, future maintenance, corrosion factors, field assembly, weight and safety should be given in determining the method of connecting the valve in the pipeline.
Method of Operation : The means by which the valve is operated as supplied are shown for the valves in this catalog. Many optional operating devices are regularly supplied by us.