Metal Branch Take-Offs & Y-Pieces

11.2 · MB / MDB / MY New

Metal Branch Take-Offs & Y-Pieces

Galvanised steel branch fittings for round ductwork that split one main duct into one or two branches for flexible duct connections.

Features

Single branch take-off (MB), double branch take-off (MDB) and Y-piece (MY) configurations
Inlet sizes Ø300, Ø350 and Ø400 mm (12, 14 and 16 in)
Branch outlets from Ø150 to Ø400 mm
Angled branch outlets for a smooth transition into the branch duct

Construction

Galvanised steel

Applications

Supply and return air distribution in residential and commercial ducted systems

Options

Insulated versions available
Other sizes made to order

Enquire Catalogue PDF · p. 94

Models

Single Branch Take-Off

MBSingle Branch Take-OffStraight-through main duct with one angled branch

Double Branch Take-Off

MDBDouble Branch Take-OffStraight-through main duct with two opposed angled branches

Y-Piece

MYY-PieceOne inlet divided into two angled outlets

Single Branch Take-Off (MB)

Code	Size (in)	Size (mm)
MB1288	12 × 8 × 8	300 × 200 × 200
MB12106	12 × 10 × 6	300 × 250 × 150
MB12108	12 × 10 × 8	300 × 250 × 200
MB121010	12 × 10 × 10	300 × 250 × 250
MB12128	12 × 12 × 8	300 × 300 × 200
MB121210	12 × 12 × 10	300 × 300 × 250
MB121212	12 × 12 × 12	300 × 300 × 300
MB1488	14 × 8 × 8	350 × 200 × 200
MB14108	14 × 10 × 8	350 × 250 × 200
MB141010	14 × 10 × 10	350 × 250 × 250
MB14128	14 × 12 × 8	350 × 300 × 200
MB141210	14 × 12 × 10	350 × 300 × 250
MB141212	14 × 12 × 12	350 × 300 × 300
MB14148	14 × 14 × 8	350 × 350 × 200
MB141410	14 × 14 × 10	350 × 350 × 250
MB141412	14 × 14 × 12	350 × 350 × 300
MB141414	14 × 14 × 14	350 × 350 × 350
MB161010	16 × 10 × 10	400 × 250 × 250
MB16128	16 × 12 × 8	400 × 300 × 200
MB161210	16 × 12 × 10	400 × 300 × 250
MB161212	16 × 12 × 12	400 × 300 × 300
MB16148	16 × 14 × 8	400 × 350 × 200
MB161410	16 × 14 × 10	400 × 350 × 250
MB161412	16 × 14 × 12	400 × 350 × 300
MB161414	16 × 14 × 14	400 × 350 × 350
MB16168	16 × 16 × 8	400 × 400 × 200
MB161610	16 × 16 × 10	400 × 400 × 250
MB161612	16 × 16 × 12	400 × 400 × 300
MB161614	16 × 16 × 14	400 × 400 × 350
MB161616	16 × 16 × 16	400 × 400 × 400

Size order: inlet × through × branch

Double Branch Take-Off (MDB)

Code	Size (in)	Size (mm)
MDB12888	12 × 8 × 8 × 8	300 × 200 × 200 × 200
MDB121088	12 × 10 × 8 × 8	300 × 250 × 200 × 200
MDB12101010	12 × 10 × 10 × 10	300 × 250 × 250 × 250
MDB14888	14 × 8 × 8 × 8	350 × 200 × 200 × 200
MDB141088	14 × 10 × 8 × 8	350 × 250 × 200 × 200
MDB14101010	14 × 10 × 10 × 10	350 × 250 × 250 × 250
MDB141288	14 × 12 × 8 × 8	350 × 300 × 200 × 200
MDB14121010	14 × 12 × 10 × 10	350 × 300 × 250 × 250
MDB14121212	14 × 12 × 12 × 12	350 × 300 × 300 × 300
MDB14141010	14 × 14 × 10 × 10	350 × 350 × 250 × 250
MDB16101010	16 × 10 × 10 × 10	400 × 250 × 250 × 250
MDB16121010	16 × 12 × 10 × 10	400 × 300 × 250 × 250
MDB16121212	16 × 12 × 12 × 12	400 × 300 × 300 × 300
MDB16141010	16 × 14 × 10 × 10	400 × 350 × 250 × 250
MDB16141212	16 × 14 × 12 × 12	400 × 350 × 300 × 300
MDB16141414	16 × 14 × 14 × 14	400 × 350 × 350 × 350

Size order: inlet × through × branch × branch

Y-Piece (MY)

Code	Size (in)	Size (mm)
MY1288	12 × 8 × 8	300 × 200 × 200
MY121010	12 × 10 × 10	300 × 250 × 250
MY121212	12 × 12 × 12	300 × 300 × 300
MY1488	14 × 8 × 8	350 × 200 × 200
MY141010	14 × 10 × 10	350 × 250 × 250
MY141212	14 × 12 × 12	350 × 300 × 300
MY141414	14 × 14 × 14	350 × 350 × 350
MY161010	16 × 10 × 10	400 × 250 × 250
MY161212	16 × 12 × 12	400 × 300 × 300
MY161414	16 × 14 × 14	400 × 350 × 350
MY161616	16 × 16 × 16	400 × 400 × 400

Size order: inlet × outlet × outlet

Sizes are nominal round duct diameters. Other sizes made to order.