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ADAPTABILITYMetal-Fab round B-Vent has been evaluated and listed by Underwriters Laboratories, Inc.,to mate with other specifically identified and UL listed round gas vent, in 3" through 6"diameters. Metal-Fab's approval covers connections at both the male (outlet) end, andthe female (inlet) end to the following B-Vent products:
General Products Co., Inc. (Airjet)American Metal Products Co. (Amerivent)Hart & Cooley (Metlvent)Household Manufacturing Inc. (Metalbestos & Airmate)Mitchell Metal Products Inc. (Mitchvent)Selkirk Metalbestos (Metalbestos)Simpson Dura-Vent Inc. (Duravent)ECCO Heating Products (ECCO Manufacturing)
At the male (outlet) end of compatible gas vent, add an adapter or adjustable length (M6A,M12A, or M18A) - then add sections of Metal-Fab pipe. At the female (inlet) end ofcompatible vent simply insert the male end of Metal-Fab B-Vent into the compatible gasvent and secure per instructions.
MATERIAL SPECIFICATIONSThe outer wall is constructed of galvanized steel, .018" thick G-90 for sizes 3" to 14" diameter, and .024" thick G-90 for sizes 16" to 30" diameter.
The inner wall is constructed of aluminum alloy, .012" thick for sizes 3" to 8" diameter and .018" thick for sizes 10" to 30" diameter.
The vent includes an integral, annular insulating air space, ¼" thick for sizes3" to 6" diameter and ½" thick for sizes 7" to 30" diameter.
T O L L F R E E 8 0 0 - 8 3 5 - 2 8 3 0TYPE - B GAS VENT - ROUND PIPE
Note: Vent overlaps 1.5" when joined together. Therefore, assembled length is 1.5" less than listed length.
A
I.D.
PIPE LENGTHS -- 16M through 30M
With quick connect lock using sheet metal screws.
16” to 30”
DIAMETER 6” 12” 18” 24” 36” 48” 60”
X X X X
I.D. = 16" through 30" diameter.
A = Length. See chart for available lengths.
PIPE LENGTHS -- 3M through 14M
With positive twist lock.
A
I.D.
SureLock™ is standard
on 3"-6" diameters.
X3” to 6”
7” to 10”
12” to 14”
DIAMETER 6” 12” 18” 24” 36” 48” 60”
X X X X X X
X X X X X X
X X X X
I.D. = 3" through 14" diameter.
A = Length. See chart for available lengths.
ADAPTER – M6A
A
CAT. NO.
6”
A I.D.
M6A 3” through 8”
ADJUSTABLE LENGTHS M12A - M18A
A
M18A
CAT. NO.
Adjusts from 3” to 8”
A I.D.
M12A
Adjusts from 3” to 14”
3” through 30”
3” through 30”TH
REE
3
10M45 10”
12M45 12”
14M45 14”
16M45 16”
18M45 18”
20M45 20”
22M45 22”
24M45 24”
26M45 26”
28M45 28”
30M45 30”
CAT. NO. SIZE A B C D
45˚ 2-PIECE ELBOW – M45 - 10”, 12”, 14”, 16”
45˚ 3-PIECE ELBOW – M45 - 18” through 30”
11.000” 7.500” 6.125” 14.75” 8.63” 22.25”
E F
13.000”
15.000”
17.000”
19.125”
21.125”
23.125”
25.125”
27.125”
29.125”
31.125”
7.630”
8.250”
7.000”
10.790”
10.790”
10.790”
10.790”
11.950”
11.950”
11.950” 11.950”
11.950”
11.950”
10.790”
10.790”
10.790”
10.790”
9.000”
7.250”
7.000” 16.25”
17.25”
19.43”
24.99”
24.99”
24.99”
24.99”
27.78”
27.78”
27.78” 15.84”
15.84”
15.84”
39.72”
39.72”
39.72”
14.20”
14.20”
14.20”
14.20”
10.43”
10.00”
9.75” 23.88”
25.38”
26.43”
35.78”
35.78”
35.78”
35.78”
Note: 10", 12", and 14" elbows are adjustable, and these same diametershave positive twist lock. Fixed angles in 16" through 30" diameter havequick connect lock using sheet metal screws.
3M90 3” 4.750” 6.250” 1.750”
4M90 4” 5.250” 6.250” 1.750”
5M90 5” 6.000” 7.375” 2.250”
6M90 6” 6.000” 7.812” 2.500”
7M90 7” 7.750” 8.750” 3.125”
8M90 8” 8.500” 9.000” 3.375”
CAT. NO. SIZE A B C
90˚ ADJUSTABLE ELBOW – M90 - 3” through 8”
The five piece M90 short radius elbow is fully 0from ° (straight) to 90°.
The 360° rotating collar allows for desiredorientation of vent pipe.
SureLock™ is standard on 3"- 6" diameters.
3M45/60 3” 4.528” 3.478”
4” 4.628” 3.528”
5” 5.859” 4.609”
6” 6.091” 4.391”
7” 5.500” 4.250”
8” 6.000” 4.500”
CAT. NO. SIZE A B
45˚/60˚ ADJUSTABLE ELBOW – M45/60 - 3” through 6”
In sizes 3" through 6", the four piece M45/60 short radius elbow is fully adjustable from 0° (straight) to 60°.
In sizes 7" and 8", the elbow is adjustable from 0° to 45°.
The 360° rotating collar allows for desired orientation of vent pipe.
45˚ ADJUSTABLE ELBOW – M45 - 7” and 8”
4M45/60
5M45/60
6M45/60
7M45
8M45
16.07”
G
27.78”
27.78”
27.78”
16.91”
18.15”
17.25”
24.99”
24.99”
24.99”
24.99”Fixed 45° 2-piece elbow shown.
4.601”
4.707”
6.342”
6.351”
5.798”
6.364”
C
12.607”
12.863”
16.811”
16.832”
15.498”
16.864”
D
5.754”
5.884”
7.896”
7.916”
N/A
N/A
C
11.466”
11.691”
15.176”
15.211”
D
N/A
N/A
@ 45˚ @ 60˚
9.500”
9.500”
11.000”
11.000”
13.750”
14.500”
D
F
EDC
B
A
G
360°
A
B
C
D
SureLock™ is standard on 3"- 6" diameters.
F
EDC
BG
A
360°
B
A
C
D
adjustable
C
B
D
A
w w w . m e t a l - f a b i n c . c o m
9.940”
10.920”
9.940”
11.530”
10.920”
9.940”
12.170”
11.190”
12.410”
11.530”
10.920”
9.940”
12.170”
11.190”
6” 6.442”6M5SY4 5.500” 4.505” 17.00” 12.000”
17.00”
SureLock™ is standard on male end on 3"- 6" diameters.
SureLock™ is standard on male end on 3"- 6" diameters.
A
D
B
E
C
SIX
VENT CAP -- MC - 14” through 30”
14MC 14” 15” 23.25”
16MC
CAT. NO. SIZE A B C
18MC
20MC
22MC
24MC
26MC
28MC
30MC
5.62”
D
16”
18”
20”
22”
24”
26”
30”
28”
17”
19”
21”
23”
25”
27”
31”
29”
22.50”
24.50”
29.00”
29.50”
31.50”
35.50”
36.50”
37.00”
7.00”
7.00”
5.75”
8.00”
8.00”
6.00”
7.50”
7.50”
Note: 14” has positive twist lock.16” - 30” has quick connect lock.
28.62”
30.62”
32.87”
39.00”
41.50”
43.50”
50.25”
52.25”
54.25”
INCREASERS – MIx
4” through 14”
16” through 30”
C
B
A
A
C
B
TYPE - B GAS VENT - ROUND FITTINGS
EIGH
T
8
3AD4 3.812”
3AD5
CAT. NO. A
MOTOR HOUSING ADAPTERS
3MA3
4.812”
3.430”
For connection to plastic motor housing.
AD With Single Wall Outlet
MA With Double Wall Outlet
3MA4
3MA5
4MA4
4.435”
5.430”
4.435”
3MIN4 3”
4MIN5
CAT. NO. A B
NO-HEIGHT INCREASER - MIN
5MIN6
4”
5”
A
2.688
B
SMALL END
16”-30”
LARGE END HT.
x 16”
8.5”
8.5”
x 18”
x 20”
Specified
x 22”
x 24”
x 26”
x 28”
x 30”
8.5”
8.5”
8.5”
8.5”
8.5”
8.5”
Specified
Specified
Specified
Specified
Specified
Specified
Specified
A B C
SMALL END
4”-14”
LARGE END HT.
6.5”
6.5”
8.5”
8.5”
3” x 5”
4” x 6”
Specified
Specified
Specified
Specified
Specified
x 7”
x 8”
x 10”
x 12”
x 14”
8.5”
8.5”
8.5”
A B C
CAT. NO.
3MIx5
4MIx6
?MIx7
?MIx8
?MIx10
?MIx12
?MIx14
CAT. NO.
?MIx24
?MIx26
?MIx28
?MIx22
?MIx20
?MIx18
?MIx16
?MIx30
AD MA
3.750
A
3"
A
4”
5”
6”
EASYOUTTM DRAFTHOODCONNECTOR – 4MDC-CB
Connects to a furnace'sinternal vent elbow andexits the cabinet, whereB-Vent can then beconnected.
Designed for specificCarrier, Bryant andPayne gas furnaces,see spec sheetfor models.
DRAFTHOOD INCREASER – 3MDC4
For increasing a 3”drafthood outlet toa 4” B-Vent outlet.
5 1/2"
5"
8 5/8"
For easy connectionof appliance tocommon B-Vent.
1’,2’,3’,4’,5’
1’,2’,3’,4’,5’
1’,2’,3’,4’,5’
SIZE
3”
4”
5”
MSWF03
MSWF04
MSWF05
SIZE
3”
4”
5”
6”
MDWF03
MDWF04
MDWF05
MDWF06
A
Use as a connection ofappliance to commonB-Vent or as a segmentof B-Vent except whereit penetrates thestructure; walls,floors, ceilings, roof.
2’,3’,4’,5’
2’,3’,4’,5’
2’,3’,4’,5’
2’,3’,4’,5’
6
3MPT 3” 5.6250” 9.00”
4MPT 4” 6.6875” 9.00”
5MPT 5” 7.6875” 11.00”
6MPT 6” 8.6875” 11.00”
7MPT 7” 10.1875” 13.25”
8MPT 8” 11.1875” 14.00”
CAT. NO. SIZE A B
PARTITION THIMBLE – MPT - 3” through 8”
Adjusts from 4.0” to 6.5” for variable wall thickness.
B
A
TYPE - B GAS VENT - ROUND FITTINGS
PARTITION THIMBLE – MPT - 3” through 8”
TEN
10
3MFS 3” 3.563”
4MFS 4” 4.563”
5MFS 5” 5.563”
6MFS 6” 6.563”
CAT. NO. SIZE A B
FIRESTOP – MFS
Space ring attached to plate ensures1” clearance to combustible.
C
7MFS
8MFS
7”
8”
8.063”
9.063” 13.0”
13.0”
10.5”
10.5”
8.5”
8.5”
11.0”
10.0”
8.5”
7.5”
6.5”
5.5”
AC
B
3MH 3” 3.625” 3.218”
4MH 4” 4.625” 3.718”
5MH 5” 5.625” 4.218”
6MH 6” 6.625” 4.718”
CAT. NO. SIZE A B
HANGER/WALL BAND – MH
7MWB and 8MWB still available - see price sheet.
A
B
SUREGRIPTM VENT SUPPORT PLATE - MVSP
CAT. NO. SIZE A
7”
8”8MVSP
7MVSP
6MVSP
5MVSP
4MVSP
3MVSP
2MVSP 2”
3”
4”
5”
6”
7”
11”
12”
13”
14”
8”
10”
A
A
The fastest, easiestway to support B-Ventwhere it penetratesfloors and ceilings.
NOTE: Pipe not included.
CAT. NO. SIZE A B C
NOTE: Pipe not included.
SUREGRIPTM VENT SUPPORT PLATEADJUSTABLE - MVSPA
3MVSPA
4MVSPA
5MVSPA
6MVSPA
3.475”
4.475”
5.448”
6.448”
7.500”
8.500”
9.500”
10.500”
6.000”
7.000”
8.000”
9.000”
3”
4”
5”
6”
T O L L F R E E 8 0 0 - 8 3 5 - 2 8 3 0
ELEV
EN
11
TYPE - B GAS VENT - ROUND FITTINGS
HEAVY SUPPORT – MHS - 10” through 30”
CAT. NO. SIZE A B
16” 10.625”
22”
24”
26”
30MHS
28”
30”
Designed to support large size pipe sections.Also serves as a firestop.
28MHS
26MHS
24MHS
22MHS
20MHS
18MHS
16MHS
14MHS
12MHS
10MHS 10”
12”
14”
16”
18”
20”
22”
24”
26”
28”
30”
18”
20”
32”
34”
36”
12.625”
14.625”
16.625”
18.625”
20.625”
22.625”
24.625”
26.625”
28.625”
30.625”
A
A
B
SUPPORT PLATE – MSP
3”3MSP
CAT. NO. SIZE A B
8.5” 17.0”
4MSP
5MSP
6MSP
7MSP
8MSP
10MSP
12MSP
14MSP
4”
5”
6”
7”
8”
10”
12”
14” 19.5” 21.5”
17.5”
15.5”
13.5”
13.5”
12.0”
10.5”
9.5” 17.0”
17.0”
17.0”
17.0”
17.0”
17.0”
21.5”
CAT. NO. SIZE A B
28MSP
30MSP
28”
30”
16MSP
18MSP
20MSP
22MSP
24MSP
26MSP
16”
18”
20”
22”
24”
26”
36.0”
36.0”
36.0”
30.0”
30.0”
30.0”
24.0”
21.5”21.5”
23.5”
25.5”
27.5”
29.5”
31.5”
33.5”
35.0”
B
A
GUY RING – MGR
Sizes 10” through 30”For additional support above the roof.
Sizes 3” through 30”.
Use to cap flue when tee has nobottom (inlet) entry.
TEE CAP – MTC
TWEL
VE
12
TYPE - B GAS VENT - ROUND FITTINGS
Fits roof pitch 6/12 to 12/12
12/12 FLASHING – MF - 12
3”3MF-12
CAT. NO. SIZE
4”
5”
A
4MF-12
5MF-12
6MF-12
7MF-12
8MF-12
6”
7”
8”
12.000”
12.000”
12.000”
12.500”
13.000” x 18.000” Oval
13.000” x 18.000” Oval
4" MIN.
A
4"
PLATE
20” x 20”
20” x 20”
20” x 20”
21” x 28”
21” x 28”
21” x 28”
Fits roof pitch from 2/12 to 5/12
PLATE
14.625” x 14.625”
14.625” x 14.625”
14.625” x 14.625”
20.000” x 20.000”
19.000” x 19.000”
17.500” x 17.500”
22.375” x 22.375”
24.000” x 24.000”
3”3MF
CAT. NO. SIZE
4”
5”
A
7.500”
4MF
5MF
6MF
7MF
8MF
10MF
12MF
14MF
6”
7”
8”
10”
12”
7.500”
8.250”
9.500”
11.000”
12.000”
14.625”
16.625”
16”16MF
18”
20”
21.000”
18MF
20MF
22MF
24MF
26MF
28MF
30MF
22”
24”
26”
28”
30”
22.750”
27.000”
26.750”
29.250”
31.750”
32.750”
36.250”
CAT. NO. SIZE A PLATE
29” x 29”
32” x 32”
33” x 33”
40” x 40”
38” x 38”
35” x 35”
42” x 42”
45” x 45”
16”16MFT
18”
20”
21.312”
18MFT
20MFT
22MFT
24MFT
26MFT
28MFT
30MFT
22”
24”
26”
28”
30”
22.562”
24.750”
26.750”
28.750”
30.750”
33.875”
34.750”
CAT. NO. SIZE A PLATE
29” x 29”
32” x 32”
33” x 33”
40” x 40”
38” x 38”
35” x 35”
42” x 42”
45” x 45”
11 3/4"
A
14.625” x 14.625”
14.625” x 14.625”
14.625” x 14.625”
20.000” x 20.000”
19.000” x 19.000”
17.500” x 17.500”
22.375” x 22.375”
24.000” x 24.000”
26.750” x 26.750”19.000”
3”3MFT
CAT. NO. SIZE
4”
5”
A
7.500”
4MFT
5MFT
6MFT
7MFT
8MFT
10MFT
12MFT
14MFT
6”
7”
8”
10”
12”
14”
7.500”
8.250”
9.500”
11.000”
12.000”
14.562”
16.625”
TALL CONE FLAT FLASHING – MFT
STANDARD FLASHING – MF
Flat roof flashing.
A
PLATE
14” 18.750” 26.750” x 26.750”
4MO
5MO
6MO
CAT. NO. SIZE A B C LENGTHS
TYPE - B GAS VENT - OVAL PIPE & FITTINGS
FOUR
TEEN
14
OVAL PIPE – MO - 4” through 6”
4”
4” & 5” oval fit 2” x 4” or 2” x 6” stud walls.
6” oval fits 2” x 6” stud wall.
5”
6”
7.25”
10.50”
12.00”
2.500”
2.875”
3.250”
6”, 12”, 18”, 2’, 3’, 4’, 5’
6”, 12”, 18”, 2’, 3’, 4’, 5’
6”, 12”, 18”, 2’, 3’, 4’, 5’
OVAL ADJUSTABLE LENGTH – MO12A
4”4MO12A
5MO12A
6MO12A
CAT. NO. SIZE LISTED LENGTH
MO12A adjusts from 3” to 9”.
5”
6”
12”
12”
12”
45˚ STANDARD FIXED ANGLE – MO45S
4”4MO45S
5MO45S
6MO45S
CAT. NO. SIZE A B OFFSET
5”
6”
2.25” 3.75” 4.50”
2.25”
2.25”
3.75”
3.75”
4.50”
4.50”
45˚ FLAT FIXED ANGLE – MO45F
4”4MO45F
5MO45F
6MO45F
CAT. NO. SIZE A B OFFSET
5”
6”
3.000” 4.750” 5.5”
3.375”
4.250”
4.875”
5.500”
3.5”
3.0”
C
A B
BA
B
A
B
A
T O L L F R E E 8 0 0 - 8 3 5 - 2 8 3 0
FIFT
EEN
15
OVALSIZE
ROUNDSIZE A
4” 4” 8.75”
5” 5” 10.50”
6” 6” 11.50”
TYPE - B GAS VENT - OVAL PIPE & FITTINGS
ADAPTER: ROUND TO OVAL – MRO
4MRO
CAT. NO.
5MRO
6MRO
4MOR
5MOR
6MOR
ADAPTER: OVAL TO ROUND – MOR
OVAL VENT CAP – MOC
4MOC
CAT. NO. C
5MOC
6MOC
8.25”
A B
10.00”
12.00”
4”
5”
6”
OVAL ADJUSTABLE ROOF FLASHING – MOF
4MOF
CAT. NO.
4”
SIZE
5”
6”
7.5”
10.5”
12.0”
Fits flat to 5/12 roof pitch.
5MOF
6MOF
A A
B
A
C
4" MIN.
3"
OVAL TEE – MOT
4MOT
CAT. NO. C
4MOT3
11” 4.50”
A B D
11” 4.50”
4”
3”
6.25”
6.25”
AC
D
B
11.5625”
14.6250”
16.0000”
SIZE
CAT. NO.
6MOT 11” 5.00” 6” 6.25”
5MOT 11” 4.75” 5” 6.25”
6MRO5 6MOR56” 5” 11.50”
P.O. BOX 1138•WICHITA, KANSAS 67201(316) 943-2351• FAX (316) 771-4154
e-mail: [email protected]•www.metal-fabinc.com
800-835-2830©2008 Metal-Fab, Inc. Litho in U.S.A. Form No. L941- 2/08
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