scope:

This Practice provides the minimum requirements for the specification of mechanical and controls functions, design and manufacturing of mixed-proof valves and valve matrices in hygienic processes.

Mixed-proof valve packaged systems may include a broad range of designs for process and utility applications. This Practice is intended to address basic requirements that are common for typical mixed-proof valves and valve matrices.

The purchaser shall ensure that specifications are invoked and provided for specific applications that exceed the scope of this Practice. The purchaser may also provide data sheets, P&IDs, process data and any other supplemental specifications to define the requirements for specific packaged equipment.