Pentair AUTOTROL MAGNUM 742 - System sizing

Installer Manual Magnum 742-762 - System sizing
Ref. MKT-IM-012 / C - 25.10.2019 29 / 106
4. System sizing
4.1. Recommendations
4.1.1. Injector and Refill controller charts
Note
All flow rates are based on an inlet pressure of 413 kPA. Actual rates vary with pressure,
temperatures and other system variables.
4.1.2. Drain line flow control
Vessel diameter [In]
Injector Flow control
[gpm]
Refill flow control
[gpm]
Backwash flow control
[gpm]
14 0.5 0.7 5.0
16 0.5 0.8 6.0
18 0.6 1.0 8.0
21 0.9 1.4 10.0
24 1.4 2.0 14.0
30 2.0 3.0 21.0
36 3.3 5.0 30.0
Flow control disc
Insert 1 Insert 2 Insert 3 Insert 4
[gpm]
[m
3
/h]
5 1.135 Blue Black Black Black
6 1.362 Red Black Black Black
7 1.589 Brown Black Black Black
8 1.816 Green Black Black Black
9 2.043 White Black Black Black
10 2.27 Blue Blue Black Black
11 2.497 Red Blue Black Black
12 2.724 Red Red Black Black
13 2.951 Brown Red Black Black
14 3.178 Brown Brown Black Black
15 3.405 Blue Blue Blue Black
16 3.632 Green Green Black Black
17 3.859 White Green Black Black
18 4.086 White White Black Black