scope:

This standard encompasses the design and performance requirements for indicating valves for their intended application of long-term water flow control. Indicating valves are usually installed above ground and indoors. They are constructed so that an informed observer can visually determine the position of the valve ball or disc indicating if the valve is open or closed.

This standard encompasses the design and performance requirements for indicating valves in the following sizes: 1, 1-1/4, 1-1/2, 2, 2-1/2, 3, 4, 5, 6, 8, 10 and 12 in. nominal pipe sizes (NPS) and equivalent metric sizes. Other sizes will be evaluated on a case-by-case basis.

This standard defines the requirements for indicating valves in either butterfly or ball valve configurations. Typical end connections for butterfly valves are: grooved end, lug style, wafer style, flanged or threaded. Typical end connections for ball valves are: grooved end and threaded. Other styles of end connection shall be evaluated on a case-by-case basis.

This standards is intended to verify that the product described will meet stated conditions of performance, safety, and quality useful to the ends of property conservation.

Purpose

This standard states testing and certification requirements for manually operated indicating valves that control the water supply to a fire protection system.

Testing and certification criteria may include, but are not limited to, performance requirements, marking requirements, examination of manufacturing facility(ies), audit of quality assurance procedures, and a surveillance audit program.