Grooved Reducer Concentric
Grooved Reducer Concentric
Grooved Threaded Reducer Concentric
Grooved Threaded Reducer Concentric
Grooved Eccentric Reducer
Grooved Eccentric Reducer
Grooved Reducer Coupling Concentric
Grooved Threaded Reducer Concentric
Grooved Eccentric Reducer
UL/FM Certificates
Grooved Reducer Concentric are also known as head sizes and are used to connect pipes of different sizes. There are two types of grooved reducers: concentric reducers and eccentric reducers.
Grooved Threaded Reducer Concentric one end is the grooved connection, the other end is the threaded connection, Threaded reducer concentric coupling is specially used to connect different ends of two pipelines.
The Grooved Eccentric Reducer refers to the size head whose circle center is not on the same straight line. Its function is to lay the pipeline along the wall or to the ground without occupying space, and it is to connect two pipes of different diameters to change the flow rate.
Two inner boxes then master seaworthy carton
Custom LOGO is available
Features and Benefits
Grooved Reducer Coupling Concentric
Two ends are both grooved connection, faster install time and much less install space. When two kinds of pipeline diameters are different, and the ends are grooved, then grooved reducer concentric coupling will be used to change the diameter of the pipeline. JIZHONG(G) grooved fittings have FM/UL certification and can be used in fire protection, HAVC, and water pipeline systems.
Grooved Threaded Reducer Concentric
Install cost will be cheaper than grooved reducer concentric, But it will take more time, and pay more workers salaries, to if considering all the costs, Threaded reducer concentric may not be the most economical solution. But it is efficient to be suitable for different ends pipeline. JIZHONG(G) grooved fitting surface is smooth and easy to install and assemble. The max working pressure can reach 2.5MPa.
The Grooved Eccentric Reducer
Under normal circumstances, the bending moment generated by the area pressure difference between the large and small ends of the concentric reducer under the action of internal pressure causes the large end to open relatively and the small end to contract relatively, while the inner surface of the large end on the grooved eccentric side of the eccentric reducer and the outer middle of the eccentric reducer The hoop stress on the surface is the largest.
Grooved Reducer Concentric
Nominal Size | Pipe O.D | Working Pressure | Dimensions |
mm/in | mm/in | PSI/Mpa UL/FM | L₂(mm/in) |
50×40 | 60.3×48.3 | 300PSI 2.07Mpa | 62.5 |
2×1 1/2 | 2.375×1.900 | 2.461 | |
65×25 | 76.1×33.7 | 62.5 | |
2 1/2×1 | 3.000×1.315 | 2.461 | |
65×50 | 76.1×60.3 | 62.5 | |
2 1/2×2 | 3.000×2.375 | 2.461 | |
80×32 | 88.9×42.4 | 62.5 | |
3×1 1/4 | 3.500×1.660 | 2.461 | |
80×50 | 88.9×60.3 | 62.5 | |
3×2 | 3.500×2.375 | 2.461 | |
80×65 | 88.9×76.1 | 62.5 | |
3×2 1/2 | 3.500×3.000 | 2.461 | |
100×65 | 108.0×76.1 | 74 | |
4×2 1/2 | 4.250×3.000 | 2.913 | |
100×80 | 108.0×88.9 | 74 | |
4×3 | 4.250×3.500 | 2.913 | |
100×50 | 114.3×60.3 | 74 | |
4×2 | 4.500×2.375 | 2.913 | |
100×56 | 114.3×76.1 | 74 | |
4×2 1/2 | 4.500×3.000 | 2.913 | |
100×80 | 114.3×88.9 | 74 | |
4×3 | 4.500×3.500 | 2.913 | |
125×100 | 133.0×108.0 | 87 | |
5×4 | 5.250×4.250 | 3.425 | |
125×65 | 139.7×76.1 | 87 | |
5×2 1/2 | 5.500×3.000 | 3.425 | |
125×80 | 139.7×88.9 | 87 | |
5×3 | 5.500×3.500 | 3.425 |
Nominal Size | Pipe O.D | Working Pressure | Dimensions |
mm/in | mm/in | PSI/Mpa UL/FM | L₂(mm/in) |
125×100 | 139.7×114.3 | 300PSI 2.07Mpa | 87 |
5×4 | 5.500×4.500 | 3.425 | |
150×65 | 159.0×76.1 | 100 | |
6×2 1/2 | 6.250×3.000 | 3.937 | |
150×100 | 159.0×108.0 | 100 | |
6×4 | 6.250×4.250 | 3.937 | |
150×125 | 159.0×133.0 | 100 | |
6×5 | 6.250×5.250 | 3.937 | |
150×50 | 165.1×60.3 | 100 | |
6×2 | 6.500×2.375 | 3.937 | |
150×65 | 165.1×76.1 | 100 | |
6×2 1/2 | 6.500×3.000 | 3.937 | |
150×80 | 165.1×88.9 | 100 | |
6×3 | 6500×3.500 | 3.937 | |
150×100 | 165.1×114.3 | 100 | |
6×4 | 6.500×4.500 | 3.937 | |
150×125 | 165.1×139.7 | 100 | |
6×5 | 6.500×5.500 | 3.937 | |
200×65 | 219.1×76.1 | 125 | |
8×2 1/2 | 8.625×3.000 | 4.921 | |
200×80 | 219.1×88.9 | 125 | |
8×3 | 8.625×3.500 | 4.921 | |
200×100 | 219.1×114.3 | 125 | |
8×4 | 8.625×4.500 | 4.921 | |
200×125 | 219.1×139.7 | 125 | |
8×5 | 8.625×5.500 | 4.921 | |
200×150 | 219.1×165.1 | 125 | |
8×6 | 8.625×6.500 | 4.921 |
Nominal Size | Pipe O.D | Working Pressure | Dimensions |
mm/in | mm/in | PSI/Mpa UL/FM | L₂(mm/in) |
250×100 | 273.0×114.3 | 300PSI 2.07Mpa | 150 |
10×4 | 10.750×4.500 | 225PSI 1.6Mpa | 5.906 |
250×125 | 273.0×139.7 | 150 | |
10×5 | 10.750×5.500 | 5.906 | |
250×150 | 273.0×165.1 | 150 | |
10×6 | 10.750×6.500 | 5.906 | |
250×200 | 273.0×219.1 | 150 | |
10×8 | 10.750×8.625 | 5.906 |
Grooved Threaded Reducer Concentric
Specification | Nomianl Size | Pipe O.D | Working Pressure | Dimensions |
D×Rc | mm/in | mm/in | PSI/Mpa UL/FM | L(mm/in) |
60×Rc 3/4 | 50×20 | 60.3×26.9 | 300PSI 2.07Mpa | 62.5 |
2×3/4 | 2.375×1.050 | 2.461 | ||
60×Rc 1 | 50×25 | 60.3×33.7 | 62.5 | |
2×1 | 2.375×1.315 | 2.461 | ||
60×Rc 1 1/4 | 50×31 | 60.3×42.4 | 62.5 | |
2×1 3/4 | 2.375×1.660 | 2.461 | ||
60×Rc 1 1/2 | 50×40 | 60.3×48.3 | 62.5 | |
2×1 1/2 | 2.375×1.900 | 2.461 | ||
73×Rc 1 | 65×25 | 73.0×33.7 | 62.5 | |
2 1/2×1 | 2.857×1.315 | 2.461 | ||
76×Rc 1 1/4 | 65×32 | 76.1×42.4 | 62.5 | |
2 1/2×1 1/4 | 3.000×1.660 | 2.461 | ||
76×Rc 1 1/2 | 65×40 | 76.1×48.3 | 62.5 | |
2 1/2×1 1/2 | 3.000×1.990 | 2.461 | ||
76×Rc 2 | 65×50 | 76.1×60.3 | 62.5 | |
2 1/2×2 | 3.000×2.375 | 2.461 | ||
89×Rc 1 | 80×25 | 88.9×33.7 | 62.5 | |
3×1 | 3.500×1.315 | 2.461 | ||
89×Rc 1 1/4 | 80×32 | 88.9×42.4 | 62.5 | |
3×1 1/4 | 3.500×1.660 | 2.461 | ||
89×Rc 1 1/2 | 80×40 | 88.9×48.3 | 62.5 | |
3×1 1/2 | 3.500×1.900 | 2.461 | ||
89×Rc 2 | 80×50 | 88.9×60.3 | 62.5 | |
3×2 | 3.500×2.375 | 2.461 | ||
89×Rc 2 1/2 | 80×65 | 88.9×76.1 | 62.5 | |
3×2 1/2 | 3.500×3.000 | 2.461 | ||
114×Rc 1 | 100×25 | 114.3×33.7 | 73.5 | |
4×1 | 4.500×1.315 | 2.894 |
Specification | Nomianl Size | Pipe O.D | Working Pressure | Dimensions |
D×Rc | mm/in | mm/in | PSI/Mpa UL/FM | L(mm/in) |
114×Rc 1 1/4 | 100×32 4×1 1/4 | 114.3×42.4 4.500×1.660 | 300PSI 2.07Mpa | 87 3.425 |
114×Rc 1 1/2 | 100×40 4×1 1/2 | 114.3×48.3 4.500×1.900 | 87 3.425 | |
114×Rc 2 | 100×50 4×2 | 114.3×60.3 4.500×2.375 | 87 3.425 | |
114×Rc 2 1/2 | 100×65 4×2 1/2 | 114.3×76.1 4.500×3.000 | 87 3.425 | |
114×Rc 3 | 100×80 4×3 | 114.3×88.9 4.500×3.500 | 87 3.425 | |
133×Rc 2 1/2 | 125×65 5×2 1/2 | 133.0×76.1 5.250×3.000 | 87 3.425 | |
133×Rc 3 | 125×65 5×3 | 133.0×88.9 5.250×3.500 | 87 3.425 | |
140×Rc 1 | 125×25 5×1 | 139.7×33.7 5.500×1.315 | 87 3.425 | |
140×Rc 1 1/4 | 125×32 5×1 1/4 | 139.7×42.4 5.500×1.660 | 87 3.425 | |
140×Rc 1 1/2 | 125×40 5×1 1/2 | 139.7×48.3 5.500×1.900 | 87 3.425 | |
140×Rc 2 | 125×50 5×2 | 139.7×60.3 5.500×2.375 | 87 3.425 | |
140×Rc 1/2 | 125×65 5×2 1/2 | 139.7×76.1 5.500×3.000 | 87 3.425 | |
140×Rc 3 | 125×80 5×3 | 139.7×88.9 5.500×3.500 | 87 3.425 | |
159×Rc 2 1/2 | 150×65 6×2 1/2 | 159.0×76.1 6.250×3.000 | 100 3.937 | |
159×Rc 3 | 150×80 6×3 | 159.0×88.9 6.250×3.500 | 100 3.937 | |
165×Rc 1 | 150×25 6×1 | 165.1×33.7 6.500×1.315 | 100 3.937 | |
165×Rc 1 1/4 | 150×32 6×1 1/4 | 165.1×42.4 6.500×1.660 | 100 3.937 | |
165×Rc 1 1/2 | 150×40 6×1 1/2 | 165.1×48.3 6.500×1.900 | 100 3.937 | |
165×Rc 2 | 150×50 6×2 | 165.1×60.3 6.500×2.375 | 100 3.937 | |
165×Rc 2 1/2 | 150×65 6×2 1/2 | 165.1×76.1 6.500×3.000 | 100 3.937 | |
165×Rc 3 | 150×80 6×3 | 165.1×88.9 6.500×3.500 | 100 3.937 | |
165×Rc 4 | 150×100 6×4 | 165.1×114.3 6.500×4.500 | 100 3.937 | |
219×Rc 2 | 200×50 8×2 | 219.1×60.3 8.625×2.375 | 125 4.921 | |
219×Rc 2 1/2 | 200×65 8×2 1/2 | 219.1×76.1 8.625×3.000 | 125 4.921 | |
219×Rc 3 | 200×80 8×3 | 219.1×88.9 8.625×3.500 | 125 4.921 |
Grooved Threaded Reducer Concentric
Nomianl Size | Pipe O.D | Working Pressure | Dimensions |
mm/in | mm/in | PSI/Mpa UL/FM | L(mm/in) |
100×65 4×2 1/2 | 114.3×76.1 4.500×3.000 | 363PSI 2.5Mpa | 101 3.976 |
100×80 4×3 | 114.3×88.9 4.500×3.500 | 101 3.976 | |
125×80 5×3 | 139.7×88.9 5.500×3.500 | 126 4.961 | |
125×100 5×4 | 139.7×114.3 5.500×4.500 | 126 4.961 | |
150×80 6×3 | 165.1×88.9 6.500×3.500 | 139 5.472 | |
150×100 6×4 | 165.1×114.3 6.500×4.500 | 139 5.472 | |
150×125 6×5 | 165.1×139.7 6.500×5.500 | 139 5.472 | |
200×100 8×4 | 219.1×114.3 8.625×4.500 | 213 8.386 | |
200×125 8×5 | 219.1×139.7 8.625×5.500 | 213 8.386 | |
200×150 8×6 | 219.1×165.1 8.625×6.500 | 213 8.386 |
