I replaced my RAIN BIRD MPR turf sprays with the 12 HE-VAN RAIN BIRD turf sprays..(12F, 12H, 12Q & 12V)
and
after sizing the connected laterals..
& labeling the valve, it gave me 122 l/min
and the schematic area gave me 161 l/min..

even though with MPR series it gave very close flow rate to the schematic on..