What is BS 7405- Applications of flowmeters about?
BS 7405 is an international standard that gives guidelines on the selection and application of flowmeters for the measurement of fluid flow in closed conduits.
BS 7405 classifies flowmeters into ten major groups and covers the basic operating principles and application of each group. It provides guidance on the selection and application of flowmeters.
BS 7405 includes information on secondary instrumentation and some aspects of flowmeter calibration. A bibliography containing details of the references in the text is given in Appendix A.
Note: The scope of BS 7405:1991 is restricted to closed conduit measurements in circular or non-circular cross-sections and therefore open channel systems are not included in the guide.
Who is BS 7405- Applications of flowmeters for?
BS 7405 on selection and application of flowmeters for the measurement of fluid flow is relevant to:
- Manufacturers and designers of flowmeters
- Hydrologists
- Process industries
- Chemical engineers
- Testing authorities
- Regulatory authorities
Why should you use BS 7405 - Applications of flowmeters?
Flowmeter is a flow measuring device that indicates the measured flow rate. Flow measurement is one of the most important of all process measurements. The control of chemical and other process plants also relies heavily on the performance of a wide range of diverse types of flowmeters.
BS 7405 provides you with flowmeters to operate with good reliability at high pressures, at high and low temperatures, and with aggressive fluids.
BS 7405 gives a detailed listing of the metering technologies. The group number has also been used to designate clause numbers in sections 3 and 4, enabling the end-user to locate information quickly.
BS 7405 aims to restrict the choice of a meter(s) to those that meet or nearly meet the requirements. If the latter point is reached then reference to the manufacturer will provide a solution by the manufacture of a special version of the meter, which will be a simple modification. The selection procedure in accordance with BS 7405 acts as a checklist for the experienced flowmeter user, to ensure that all variables have been considered. In some cases, it is found necessary to consult with a flowmeter manufacturer or an independent evaluation authority.