10", 12", 14" models

Type M+MG2

Solid, Oil or Gas Commercial/Industrial
This is a series of compact, rugged, heavy-duty controls for use on large residential, commercial, and industrial applications. The Field Type M+MG2 Draft Control provides precise draft regulations for solid fuels, oil, gas, or oil/gas appliances requiring only the simplest, on-the-job adjustments depending on which fuel is to be utilized. In a gas installation, the double-acting Type M+MG2 is specified instead of a draft hood to give the appliance the assistance of the chimney. In a duel fuel oil/gas or a gas-fired only application, use the M+MG2 as a double-acting draft control with the optional Field Thermal Switch accessory. Use the M+MG2 as a single-acting draft control for oil or solid fuel applications. For any installation with 10" or larger diameter vent pipe, specify our standard M+MG2 Draft Control, the unit that can be adapted to any fuel. The moving part (gate) rests on a long, thin, stainless steel knife edge which, in turn, is supported by self-aligning and self-cleaning bearings. When the heavy gauge gate moves, only the knife edge rests on the bearing for minimum friction and maximum sensitivity to draft changes.

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
10" M+MG2* 10 78.5 9 - 10 28 1/4 to 31 1/2 10 4 3/8 5 4 1/4 11 3 3/8 1 1/8 4 3/4 1 3 1/2 1 14 1/8
12" M+MG2* 12 113 11 - 12 34 1/2 to 37 3/4 12 5 3/4 6 5 13 1/4 4 5/8 1 3/4 4 3/4 1 3 1/2 7/8 16 1/2
14" M+MG2* 14 154 13 - 14 40 3/4 to 44 14 7 1/8 7 5 3/4 15 1/2 5 3/8 2 1/8 5 1/8 1 3 1/2 5/8 19 1/4
16" M+MG2 16 201 15 - 16 47 to 50 1/4 16 8 3/8 8 6 1/2 17 1/2 6 1/8 2 3/8 5 5/8 1 1/2 4 5/8 22
18" M+MG2 18 255 17 - 18 53 1/2 to 56 1/2 18 8 1/4 9 7 1/2 19 1/2 6 7/8 2 3/4 7 3/8 1 1/2 5 1/4 1 5/8 24 5/8
20" M+MG2** 20 314 19 - 21 59 3/4 to 66 20 9 5/8 10 8 1/8 22 7 5/8 3 7 3/4 1 1/2 6 1/4 1 1/4 27 3/8
24" M+MG2** 24 452 22 - 25 69 to 78 1/2 24 12 3/8 12 10 1/2 26 9 1/4 3 5/8 8 5/8 2 6 1/4 1 1/4 33
28" M+MG2** 28 616 26 - 30 81 3/4 to 94 1/4 28 13 1/8 14 - 30 1/2 10 3/4 4 1/8 11 3/8 2 6 1/4 7/8 38 1/2
32" M+MG2** 32 804 31 - 34 97 1/2 to 107 32 15 3/8 16 - 35 12 1/4 4 3/4 12 1/8 2 6 1/4 5/8 43 1/2
*CSA certified
**An increaser or reducer may be necessary in order for the Barometric Draft Control to adapt to off-sized pipe.


MATERIAL GAUGES
Size RING GATE COLLAR
10" 20 18 24*
12" 20 16 24*
14" 20 16 22*
16" 18 16 20*
18" 18 16 20*
20" 18 16 18*
24" 18 14 18*
28" 16 14 14**
32" 16 14 14**
* Galvanized **HRPO with Enamel Finish
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