V has various meanings in the Ordnance Survey category. Discover the full forms, definitions, and usage contexts of V in Ordnance Survey.
A device provided in a piping system to regulate or stop the liquid low. Although many different types of valves are used to control the flow of fluids, the basic valve types can be divided into two general groups: stop valves and check valves.
Ordnance SurveyLast updated: