Watts R48-20-3131100 - Manual (Page 17)

VI. APPENDIX
The following tables are intended as a guide to determining the flow rates for the R48
series RO systems. All flows are in gallons per minute (GPM).
Nominal flows for systems not using reject recycle
with a feed water Silt Density Index less than 3.
R48-08 R48-12 R28-16 R48-20
Product (max) 40 60 80 100
Reject 25 35 45 55
Nominal flows for systems with reject recycle
and a feed water Silt Density Index less than 3.
R48-08 R48-12 R28-16 R48-20
Product (max) 40 60 80 100
Reject 14 20 27 34
Reject Recycle 11 15 18 21
Nominal flows for systems not using reject recycle
and a feed water Silt Density Index of 3 to less than 5.
R48-08 R48-12 R28-16 R48-20
Product (max) 34 51 68 85
Reject 19 28 37 46
Nominal flows for systems with reject recycle
and a feed water Silt Density Index of 3 to less than 5.
R48-08 R48-12 R28-16 R48-20
Product (max) 34 51 68 85
Reject 12 17 23 29
Reject Recycle 7 11 14 17