Overview of Primary Product

6
© 2012 Maxitrol Company, All Rights Reserved
CAPACITIES
Flow Rate expressed in CFH (m
3
/h) - 0.64 sp gr gas, Pressure Drop expressed in inches w.c. (Pa)
NOTE: Consult with Maxitrol Company, for ows in excess of those shown below.
Model Number and
Pipe Size
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
0.33
(82)
0.75
(188)
-- -- -- -- -- -- -- -- -- --
†5-90
(14-250)
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
(14-350)
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
(14-520)
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
(28-930)
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
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
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
(28-930)
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])
Model Number and
Pipe Size
1000
(28.3)
1500
(42.5)
2000
(56.5)
2500
(70.8)
3000
(85.0)
3500
(99.0)
5000
(142)
6000
(170)
7000
(198)
10000
(283)
11000
(311)
CSA
Listed
Min. Flow
Applies to
MR212’s only
MR212D*
MR251D
1 x 1
1.9
(475)
2.9
(725)
4.9
(1225)
6.2**
(1550)
--
-- -- -- -- -- --
2250
25-300
(71-850)
1¼ x 1¼
1.7
(425)
2.3
(575)
3.1
(775)
4.8
(1200)
5.9**
(1475)
2750
1½ x 1½
1.7
(425)
2.2
(550)
2.9
(725)
3.9
(975)
5.4
(1350)
3000
MR212E*
MR251E
1½ x 1½
-- --
1.9
(475)
2.4
(600)
2.9
(725)
3.5
(875)
6.0**
(1500)
-- -- -- -- 4750
25-300
(71-850)
2 x 2
1.9
(475)
2.1
(525)
2.4
(600)
2.7
(675)
5.5
(1375)
6.0**
(1500)
-- -- -- 5250
MR212G*
MR251G
2½ x 2½
-- -- -- -- --
1.9
(475)
2.2
(550)
2.6
(650)
3.0
(750)
6.1
(1525)
-- 10000
50-450
(140-1270)
3 x 3 --
2.1
(525)
2.3
(575)
2.6
(650)
4.6
(1150)
5.6
(1400)
11000 --
*U.L. recognized
**PressureDropguresderivedfromCSAMaximumListedCapacitiesinfarrightcolumn(notowatcolumntop).
Model Number
and Pipe Size
6000
(170)
8000
(227)
10000
(283)
12000
(340)
14000
(397)
16000
(397)
18000
(510)
20000
(566)
22000
(623)
24000
(680)
27000
(765)
30000
(850)
Min. Flow
MR212J 4 x 4
1.9
(475)
2.1
(525)
2.4
(600)
2.7
(675)
3.1
(775)
3.6
(900)
4.5
(1125)
5.4
(1350)
6.6
(1650)
7.8
(1950)
9.9
(2475)
12.4
(3100)
1-1000
(3-2830)
M/MR Series Literature