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Overview
The Grooved Eccentric Reducer is a grooved-end fitting designed with offset centerlines on each end, allowing pipelines of different diameters to be connected while maintaining a flat alignment on one side. This design helps the pipeline run close to walls or floors, optimizing space utilization and improving system layout efficiency.
Product Description
This eccentric grooved reducer connects two pipes of unequal diameters through a mechanical grooved connection. Unlike concentric reducers, the eccentric configuration prevents unnecessary elevation changes in the pipeline and supports smooth fluid flow transitions. It is particularly suitable for systems where space constraints or drainage requirements must be considered. The grooved ends enable fast installation without welding, reducing labor time and simplifying maintenance.
| 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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Eccentric design with offset centerlines
Grooved ends for quick and secure mechanical assembly
Supports wall- or floor-aligned pipeline layouts
Reduces space occupation in compact installations
Ensures stable pressure distribution and structural reliability
Compatible with standard grooved piping systems
Connects pipes of different nominal diameters
Allows pipeline alignment along walls or ground surfaces
Adjusts flow rate through controlled diameter transition
Minimizes stress concentration under internal pressure
Enhances overall system stability and sealing performance
Grooved Eccentric Reducers are widely applied in:
Fire protection and sprinkler systems
HVAC and chilled water pipelines
Pump suction and discharge lines
Industrial water supply and process piping
Mechanical rooms with limited installation space
They are especially suitable for installations where level alignment or drainage efficiency 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 main difference between eccentric and concentric grooved reducers?
A: An eccentric reducer has offset centerlines to keep one side of the pipe level, while a concentric reducer maintains a common centerline.
Q2: Why are eccentric reducers often used near pumps?
A: They help prevent air pockets and improve flow stability, especially on pump suction lines.
Q3: Does installation require welding?
A: No. The grooved ends allow for mechanical installation without welding or hot work.
Q4: Can it be installed close to walls or floors?
A: Yes. The eccentric design allows the pipeline to be laid flush against walls or ground surfaces.
Q5: What pipe systems is it compatible with?
A: It is suitable for standard grooved-end steel piping systems used in fire protection, HVAC, and industrial applications.
