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Overview
The Grooved Reducer Concentric Coupling is designed to connect two grooved-end pipes with different diameters while maintaining a common centerline. By integrating diameter reduction and grooved connection into a single fitting, it offers a compact and efficient solution for modern piping systems where installation speed, alignment accuracy, and space optimization are essential.
Product Description
This concentric grooved reducer coupling features grooved ends on both sides, allowing quick mechanical assembly without welding or threading. It enables a smooth transition between larger and smaller pipe sizes while keeping the pipeline aligned on the same axis. Compared with traditional reducer fittings that require multiple components, this coupling simplifies installation, reduces labor time, and minimizes the overall footprint of the piping system.
| Sizes: | DN40–DN250 (1½″–10″) threaded outlet |
| Materials: | ASTM A536,GRADE 65-45-12,QT450-10 |
| Threads: | ASME B1.20.1,ISO 7-1,BS21,BSPT,NPT,GB 7306 |
| Surface Treatment: | Electrophoretic painted,Electroplated, Epoxy, Hot-dip Galvanized |
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Concentric design ensures precise pipe alignment
Grooved ends on both sides for fast and secure installation
Eliminates the need for welding or additional reducer fittings
Compact structure suitable for limited installation spaces
Reliable sealing performance under working pressure
Compatible with standard grooved piping systems
Connects grooved pipes with different nominal diameters
Provides a smooth and centered reduction in pipe size
Improves installation efficiency and reduces labor cost
Maintains system integrity and leak-free performance
Simplifies pipeline layout and design
Grooved Reducer Concentric Couplings are widely used in:
Fire protection and sprinkler systems
HVAC and building service pipelines
Industrial water distribution systems
Pump rooms and mechanical equipment connections
Retrofit and system expansion projects
They are particularly suitable for applications where grooved pipe ends are used and consistent pipe alignment is required.
Main production process
Installation Instruction For Threaded &Grooved Mechanical Tee
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| 1.Take out the Rigid &Flexible Coupling Clean the gasket sealing surface within 16mm of the hole and visually inspect the sealing surface for defects that may prevent proper sealing of the gasket.Don't drill the hole on weld line. | 2.Split the Rigid &Flexible Coupling If any burrs or slug exists at the pipe hole,please remove them before assembly,to protect the gasket and avoid leakage. | 3.Pipe preparation Insert the gasket into outlet housing making sure the tab in the gasket line up with the tab recesses in the housing.Align outlet housing over the pipe hole making sure that the locating collar is in the pipe hole. | 4.Lubricate gasket Align the strap around the pipe,inser the bolts and tighten the nuts finger tight. | |||||
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| 5.Gasket installation Alternatively and evenly tighten the nuts to the specified bolt torque. | 6.Housing installation There should be even gaps on two sides between upper and lower housings. | |||||||
FAQ
Q1: What is the difference between concentric and eccentric grooved reducers?
A: A concentric reducer maintains the same centerline on both pipe ends, while an eccentric reducer offsets the centerline to prevent air or liquid accumulation.
Q2: Does this coupling require welding during installation?
A: No. The grooved design allows mechanical installation without welding or hot work.
Q3: Is it suitable for fire protection systems?
A: Yes. It is commonly used in fire protection, HVAC, and water pipeline applications where grooved connections are specified.
Q4: Can it be installed in tight spaces?
A: Yes. Its compact design and grooved connection significantly reduce installation space compared to traditional reducer assemblies.
Q5: What types of pipes can it connect?
A: It is suitable for grooved-end steel pipes used in standard grooved piping systems.
