The flow
rate for a pre-rinse spray valve installed in a commercial
kitchen to remove food waste from cookware and dishes
before cleaning shall not be more than 1.3 gpm (4.9 L/m) at
60 psi (414 kPa). Where pre-rinse spray valves with maximum
flow rates of 1.0 gpm (3.8 L/m) or less are installed, the
static pressure shall be not less than 30 psi (207 kPa). Commercial
kitchen pre-rinse spray valves shall be equipped with
an integral automatic shutoff.