Product Overview

6
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CAPACITIES
NOTE: For ows in excess of those shown below, consult with Maxitrol Company.
Model Number and
Pipe Size
Flow Rate in
CFH (m
3
/h)
100
(2.83)
150
(4.25)
200
(5.66)
250
(7.1)
300
(8.5)
350
(9.9)
400
(11.3)
450
(12.7)
500
(14.2)
600
(17.0)
700
(19.8)
750
(21.2)
Min. Flow
MR410
MR410H-1
M411
3/8X3/8
Pressure Drop in inches w.c. (Pa)
0.33
(82)
0.75
(188)
-- -- -- -- -- -- -- -- -- --
†5-90
(0.14-2.5)
M420†
M420H
M451
1/2X1/2
0.27
(67)
0.61
(153)
MR510
MR510H-1
M511†
1/2X1/2 --
0.17
(42)
0.30
(75)
0.47
(118)
0.67
(168)
0.92
(230)
--
-- -- -- -- --
†5-125
(0.14-3.5)
M520‡
M520H
M551
3/4X3/4 --
0.12
(30)
0.21
(52)
0.32
(80)
0.47
(118)
0.64
(160)
0.83
(207)
‡5-185
(0.14-5.2)
MR610
MR610H-1
3/4X3/4 -- -- --
0.14
(35)
0.20
(50)
0.27
(67)
0.36
(90)
0.45
(113)
0.56
(140)
0.81
(203)
-- --
†10-330
(0.28-9.3)
M620†
M620H
M651
1X1 -- -- --
0.12
(30)
0.16
(40)
0.22
(55)
0.29
(72)
0.37
(92)
0.45
(113)
0.66
(165)
0.90
(225)
1.00
(250)
Model Number
and Pipe Size
Flow Rate
in CFH
(m
3
/h)
100
(2.83)
150
(4.25)
200
(5.66)
300
(8.5)
400
(11.3)
500
(14.2)
600
(17.0)
700
(19.8)
800
(22.7)
900
(25.5)
1000
(28.3)
CSA
Listed
Min. Flow
M611*
3/4 x 3/4
Pressure Drop in inches w.c. (Pa)
0.02
(5)
0.06
(15)
0.09
(23)
0.20
(50)
0.36
(90)
0.56
(140)
0.81
(203)
1.10
(275)
1.45
(363)
1.83
(458)
--
1000
10-330
(0.28-9.3)
1 x 1
0.02
(5)
0.05
(12)
0.07
(18)
0.16
(40)
0.29
(72)
0.46
(115)
0.66
(165)
0.90
(225)
1.18
(295)
1.50
(375)
1.85
(463)
†or‡Modelstowhichmin.owapplies.(MinimumowmaximumcalculatedΔP=3.5”w.c.[singleby-pass])
M/MR Series Literature