When a fluid is in motion, it must move in such a way that mass is conserved. To see how mass conservation places restrictions on the velocity field, consider the steady flow of fluid through a duct ...

The rough-in valve itself features universal 0.5-inch inlet and outlet fittings, allowing users to replace most older valves without coupling up or down in pipe size. Its pressure-balance ...

the petroleum ministry has set up a committee to look into the ‘design aspects of failure’ of inlet and outlet of such tankers. The panel will also work on measures to prevent such accidents.