Threaded Concentric Reducer

Grooved Concentric Reducer, grooved ends, used to connect pipes of different diameters with concentric transition (centerlines aligned). Quick installation, reliable sealing—ideal for fire protection, plumbing, and HVAC piping systems.

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Threaded Concentric Reducer

Threaded Concentric Reducer
Standard: ANSI/UL 213C
Housing Material: Ductile iron conforming to ASTM A-536, Grade 65-45-12.
Rated pressure: 300PSI.
Surface: Hot dip galvanizing / Epoxy powder painting/Dip Coating, etc.
Color: Variable colors for choice.
Threaded concentric reducer, threaded ends, concentric transition between different pipe diameters—used to connect pipes of varying sizes, easy installation, reliable sealing—ideal for fire protection, plumbing, and HVAC systems.

Nominal Size mm/in	Pipe OD. mm/in	Working Pressure psi/Mpa	Dimensions L mm/in
32×25 1¼×1	42.4×33.7 1.660×1.315	300 psi 2.07 Mpa	64 2.51
40×25 1½×1	48.3×33.7 1.900×1.315		64 2.51
40×32 1½×1¼	48.3×42.4 1.900×1.660		64 2.51
50×25 2×1	60.3×33.7 2.375×1.315		64 2.51
50×32 2×1¼	60.3×42.4 2.375×1.660		64 2.51
50×40 2×1½	60.3×48.3 2.375×1.900		64 2.51
65×25 2½×1	73.0×33.7 2.875×1.315		64 2.51
65×32 2½×1¼	73.0×42.4 2.875×1.660		64 2.51
65×40 2½×1½	73.0×48.3 2.875×1.900		64 2.51
65×50 2½×2	73.0×60.3 2.875×2.375		64 2.51
65×32 2½×1¼	76.1×42.4 3.000×1.660		64 2.51
65×40 2½×1½	76.1×48.3 3.000×1.900		64 2.51
65×50 2½×2	76.1×60.3 3.000×2.375		64 2.51
80×32 3×1¼	88.9×42.4 3.500×1.660		64 2.51
80×40 3×1½	88.9×48.3 3.500×1.900		64 2.51
80×50 3×2	88.9×60.3 3.500×2.375		64 2.51
80×65 3×2½	88.9×76.1 3.500×3.000		64 2.51
100×65 4×2½	108.0×76.1 4.250×3.000		76 2.99
100×80 4×3	108.0×88.9 4.250×3.500		76 2.99
100×32 4×1¼	114.3×42.4 4.500×1.660		76 2.99
100×40 4×1½	114.3×48.3 4.500×1.900		76 2.99
100×50 4×2	114.3×60.3 4.500×2.375		76 2.99
100×65 4×2½	114.3×76.1 4.500×3.000		76 2.99
100×80 4×3	114.3×88.9 4.500×3.500		76 2.99
125×50 5×2	139.7×60.3 5.500×2.375		89 3.50
125×65 5×2½	139.7×76.1 5.500×3.000		89 3.50
125×80 5×3	139.7×88.9 5.500×3.500		89 3.50
125×100 5×4	139.7×114.3 5.500×4.500		89 3.50
125×50 5×2	141.3×60.3 5.563×2.375		89 3.50
125×65 5×2½	141.3×76.1 5.563×3.000		89 3.50
125×80 5×3	141.3×88.9 5.563×3.500		89 3.50
125×100 5×4	141.3×114.3 5.563×4.500		89 3.50
150×50 6×2	159.0×60.3 6.250×2.375		102 4.01
150×65 6×2½	159.0×76.1 6.250×3.000		102 4.01
150×80 6×3	159.0×88.9 6.250×3.500		102 4.01
150×100 6×4	159.0×108.0 6.250×4.250		102 4.01
150×100 6×4	159.0×114.3 6.250×4.500		102 4.01
150×125 6×5	159.0×133.0 6.250×5.250		102 4.01
150×125 6×5	159.0×139.7 6.250×5.500		102 4.01
150×50 6×2	165.1×60.3 6.500×2.375		102 4.01
150×65 6×2½	165.1×76.1 6.500×3.000		102 4.01
150×80 6×3	165.1×88.9 6.500×3.500		102 4.01
150×100 6×4	165.1×114.3 6.500×4.500		102 4.01
150×125 6×5	165.1×139.7 6.500×5.500		102 4.01
150×50 6×2	168.3×60.3 6.625×2.375		102 4.01
150×65 6×2½	168.3×76.1 6.625×3.000		102 4.01
150×80 6×3	168.3×88.9 6.625×3.500		102 4.01
150×100 6×4	168.3× 114.3 6.625×4.500		102 4.01
150×80 6×5	168.3×139.7 6.625×5.500		102 4.01
200×50 8×2	219.1×60.3 8.625×2.375		127 5
200×65 8×2½	219.1×76.1 8.625×3.000		127 5
200×80 8×3	219.1×88.9 8.625×3.500		127 5
200×100 8×4	219.1×108.0 8.625×4.250		127 5
200×100 8×4	219.1×114.3 8.625×4.500		127 5
200×125 8×5	219.1×139.7 8.625×5.500		127 5
200×150 8×6	219.1×159.0 8.625×6.250		127 5
200×150 8×6	219.1×165.1 8.625×6.500		127 5
200×150 8×6	219.1×168.3 8.625×6.625		127 5
250×100 10×4	273×114.3 10.748×4.500		127 5
250×150 10×6	273×165.1 10.748×6.500		127 5
250×150 10×6	273×168.3 10.748×6.625		127 5
250×200 10×8	273×219.1 10.748×8.625		127 5
300×100 12×4	323.9×114.3 12.752×4.500		127 5
300×150 12×6	323.9×165.1 12.752×6.500		127 5
300×150 12×6	323.9×168.3 12.752×6.625	127 5
300×200 12×8	323.9×219.1 12.752×8.625	127 5
300×250 12×10	323.9×273 12.752×10.748	127 5