Threaded Concentric Reducer Manufacturer

Threaded Concentric Reducer

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Grooved pipe fittings

Threaded concentric reducers are cone-shaped pipe fittings that have grooves and internal threads for connection. They reduce the size of the pipeline in a symmetrical and concentric manner while keeping the centerlines of the two pipes aligned. This product achieves mechanical coupling by using a set of grooves at the ends of the pipes and fittings. Typically, one end is grooved using a specialized tool, and then the joint is clamped onto the groove using bolts or a similar mechanism. The other end is threaded.

Features

Made of materials such as ductile iron, stainless steel, or carbon steel, which provide strong wear resistance and corrosion resistance.
Available in various sizes and pressure ratings, suitable for different applications.
Enables the connection of two pipes with different diameters.

Recommended Applications

Threaded concentric reducers are commonly used in industrial and commercial piping systems, such as gas pipelines, water supply pipelines, etc., where the size of the pipeline needs to be reduced to accommodate changes in flow or pressure.

Key Specifications

Available sizes: 1 1/4×1 inch~12×4 inch |DN32×25~DN300×100
Working pressure: 300PSI/2.07MPa
Certificate: FM/UL/CE certified
Coating: epoxy/galvanized
Color: red/orange/white, etc.
Material: ductile iron

Specifications

Nominal Size	Pipe OD	Dimensions
mm/in	mm/in	L mm/in
32×25 / 1 1/4×1	42.4×33.7 / 1.660×1.315	64 / 2.51
40×32 / 1 1/2×1 1/4	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 / 2×1 1/4	60.3×42.4 / 2.375×1.660	64 / 2.51
50×40 / 2×1 1/2	60.3×48.3 / 2.375×1.900	64 / 2.51
65×25 / 2 1/2×1	73×33.7 / 2.875×1.315	64 / 2.51
65×32 / 2 1/2×1 1/4	73×42.4 / 2.875×1.660	64 / 2.51
65×40 / 2 1/2×1 1/2	73×48.3 / 2.875×1.900	64 / 2.51
65×50 / 2 1/2×2	73×60.3 / 2.875×2.375	64 / 2.51
65×25 / 2 1/2×1	76×33.7 / 3.000×1.315	64 / 2.51
65×32 / 2 1/2×1 1/4	76×42.4 / 3.000×1.660	64 / 2.51
65×40 / 2 1/2×1 1/2	76×48.3 / 3.000×1.900	64 / 2.51
65×50 / 2 1/2×2	76×60.3 / 3.000×2.375	64 / 2.51
80×25 / 3×1	88.9×33.7 / 3.500×1.315	64 / 2.51
80×32 / 3×1 1/4	88.9×42.4 / 3.500×1.660	64 / 2.51
80×40 / 3×1 1/2	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 / 3×2 1/2	88.9×76.1 / 3.500×3.000	64 / 2.51
100×25 / 4×1	108.0×33.7 / 4.250×1.315	76 / 2.99
100×32 / 4×1 1/4	108.0×42.4 / 4.250×1.660	76 / 2.99
100×40 / 4×1 1/2	108.0×48.3 / 4.250×1.900	76 / 2.99
100×50 / 4×2	108.0×60.3 / 4.250×2.375	76 / 2.99
100×65 / 4×2 1/2	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
100×25 / 4×1	114.3×33.7 / 4.500×1.315	76 / 2.99
100×32 / 4×1 1/4	114.3×42.4 / 4.500×1.660	76 / 2.99
100×40 / 4×1 1/2	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 / 4×2 1/2	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
125×25 / 5×1	133.0×33.7 / 5.250×1.315	89 / 3.5
125×32 / 5×1 1/4	133.0×42.4 / 5.250×1.660	89 / 3.5
125×40 / 5×1 1/2	133.0×48.3 / 5.250×1.900	89 / 3.5
125×50 / 5×2	133.0×60.3 / 5.250×2.375	89 / 3.5
125×25 / 5×1	139.7×33.7 / 5.500×1.315	89 / 3.5
125×32 / 5×1 1/4	139.7×42.4 / 5.500×1.660	89 / 3.5
125×40 / 5×1 1/2	139.7×48.3 / 5.500×1.900	89 / 3.5
125×50 / 5×2	139.7×60.3 / 5.500×2.375	89 / 3.5
125×65 / 5×2 1/2	139.7×76.1 / 5.500×3.000	89 / 3.5
125×80 / 5×3	139.7×88.9 / 5.500×3.500	89 / 3.5
125×100 / 5×4	139.7×114.3 / 5.500×4.500	89 / 3.5
125×25 / 5×1	141.3×33.7 / 5.563×1.315	89 / 3.5
125×32 / 5×1 1/4	141.3×42.4 / 5.563×1.660	89 / 3.5
125×40 / 5×1 1/2	141.3×48.3 / 5.563×1.900	89 / 3.5
125×50 / 5×2	141.3×60.3 / 5.563×2.375	89 / 3.5
125×65 / 5×2 1/2	141.3×76.1 / 5.563×3.000	89 / 3.5
125×80 / 5×3	141.3×88.9 / 5.563×3.500	89 / 3.5
150×25 / 6×1	159.0×33.7 / 6.250×1.315	102 / 4.01
150×32 / 6×1 1/4	159.0×42.4 / 6.250×1.660	102 / 4.01
150×40 / 6×1 1/2	159.0×48.3 / 6.250×1.900	102 / 4.01
150×50 / 6×2	159.0×60.3 / 6.250×2.375	102 / 4.01
150×65 / 6×2 1/2	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
150×25 / 6×1	165.1×33.7 / 6.500×1.315	102 / 4.01
150×32 / 6×1 1/4	165.1×42.4 / 6.500×1.660	102 / 4.01
150×40 / 6×1 1/2	165.1×48.3 / 6.500×1.900	102 / 4.01
150×50 / 6×2	165.1×60.3 / 6.500×2.375	102 / 4.01
150×65 / 6×2 1/2	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
150×25 / 6×1	168.3×33.7 / 6.625×1.315	102 / 4.01
150×32 / 6×1 1/4	168.3×42.4 / 6.625×1.660	102 / 4.01
150×40 / 6×1 1/2	168.3×48.3 / 6.625×1.900	102 / 4.01
150×50 / 6×2	168.3×60.3 / 6.625×2.375	102 / 4.01
200×25 / 8×1	219.1×33.7 / 8.625×1.315	127 / 5
200×32 / 8×1 1/4	219.1×42.4 / 8.625×1.660	127 / 5
200×40 / 8×1 1/2	219.1×48.3 / 8.625×1.900	127 / 5
200×50 / 8×2	219.1×60.3 / 8.625×2.375	127 / 5
200×65 / 8×2 1/2	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	219.1×114.3 / 8.625×4.500	127 / 5

Can grooved fittings be used as alternatives to flange connections or welding in a pipe system?

Grooved mechanical pipe fitting offers a versatile pipe-joining alternative, suitable for various applications such as fire sprinkler piping systems, outdoor piping systems, and pipelines in geologically unstable conditions. This flame-free joining method improves installation efficiency and reduces maintenance costs.

What are the advantages of grooved mechanical pipe systems?

Grooved fittings provide the piping systems with a certain level of rigidity, low noise, small vibrations, and lower maintenance costs.