Type MOil or Coal - Residential
The M control lends itself ideally to conditions requiring a great deal of stability and accuracy. Designed for settings from .01" to .1", the Field M Control is recommended for oil or coal-fired residential heating applications. The Type M features an infinitely variable screw adjustment, permitting an extremely fine instrument setting. The M employs side wings to control air direction with gate curvatures designed to compensate for differences in horizontal and vertical settings.
| MATERIAL GAUGES |
| Size |
RING |
GATE |
COLLAR |
| 6" |
24 |
26 |
26 |
| 7" |
22 |
22 |
26 |
| 8" |
20 |
20 |
24 |
| 9" |
20 |
20 |
24 |
|
|
| Recommended Pipe Sizes (in.) |
| Model |
Control Size |
Nominal Capacity Sq. In. |
Dia. |
Circum. |
A |
B |
C |
D |
E |
G |
M |
| 6" M |
6 |
28.3 |
5-6-7 |
15 3/4 to 22 |
6 |
5 |
3 |
3 1/4 |
6 17/32 |
2 |
8 |
| 7" M |
7 |
38.5 |
6-7-8 |
19 to 25 1/4 |
7 |
5 1/4 |
3 1/2 |
3 3/4 |
7 3/8 |
2 1/4 |
8 3/4 |
| 8" M |
8 |
50.3 |
7-8-9 |
22 to 28 1/4 |
8 |
6 3/8 |
4 |
3 3/8 |
8 5/8 |
3 |
10 3/8 |
| 9" M |
9 |
63.6 |
8-9-10 |
25 1/4 to 31 1/2 |
9 |
7 1/4 |
4 1/2 |
3 3/4 |
9 5/8 |
1 29/32 |
11 3/4 |
Type MG-1 Gas
A double-acting control for gas-fired furnaces and boilers is widely used for conversion burner installations, gas draft-induced appliance operation with mechanical draft inducers, or sidewall power venters. It is also recommended for use on gas atmospheric appliances where a draft hood cannot be installed, and can improve combustion stability and draft on many gas atmospheric installations with venting problems.
The MG-1 provides precise, accurate control of drafts at levels higher than permitted by a standard draft diverter, which is a frequent requirement with gas. Because it is double-acting, it opens out to relieve positive vent system pressures as low as .01". Draft adjustments using weights are simple and accurate from .01" to .1".
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 |
 |
| MATERIAL GAUGES |
| Size |
RING |
GATE |
COLLAR |
| 4" |
24 |
24 |
26 |
| 5" |
24 |
24 |
26 |
| 6" |
24 |
24 |
26 |
| 7" |
22 |
22 |
26 |
| 8" |
20 |
20 |
26 |
| 9" |
20 |
20 |
26 |
|
|
| Recommended Pipe Sizes (in.) |
| Model |
Control Size |
Nominal Capacity Sq. In. |
Dia. |
Circum. |
A |
B |
C |
D |
E |
F |
G |
H |
J |
K |
L |
M |
| 4" MG-1 |
4 |
12.6 |
3 - 4 |
9 1/2 to 12 1/2 |
4 |
2 1/2 |
2 |
2 5/16 |
4 9/16 |
1 1/2 |
1/4 |
2 1/2 |
1/2 |
1 1/4 |
3/8 |
7 |
| 5" MG-1 |
5 |
19.6 |
4 - 5 |
12 1/2 to 15 3/4 |
5 |
2 1/2 |
2 |
2 5/16 |
5 9/16 |
2 |
5/8 |
2 1/2 |
1/2 |
1 1/4 |
1/2 |
7 |
| 6" MG-1 |
6 |
28.3 |
5 - 6 |
15 3/4 to 19 |
6 |
2 11/16 |
3 |
3 1/4 |
6 5/8 |
2 1/8 |
13/16 |
2 3/4 |
3/4 |
1 3/4 |
5/8 |
8 7/16 |
| 7" MG-1 |
7 |
38.5 |
6 - 7 |
19 to 22 |
7 |
3 3/8 |
3 1/2 |
3 3/4 |
7 5/8 |
2 3/8 |
1 1/8 |
2 3/4 |
3/4 |
2 |
1/4 |
9 5/8 |
| 8" MG-1 |
8 |
50.3 |
7 - 8 |
22 to 25 1/4 |
8 |
4 3/8 |
4 |
3 3/8 |
8 11/16 |
3 |
1 1/2 |
2 5/8 |
3/4 |
2 1/4 |
3/8 |
11 |
| 9" MG-1 |
9 |
63.6 |
8 - 9 |
25 1/4 to 28 1/4 |
9 |
5 1/8 |
4 1/2 |
3 3/4 |
9 11/16 |
3 1/2 |
1 3/4 |
2 5/8 |
3/4 |
2 1/2 |
3/8 |
12 1/4 |
|
