Yingnai FRP Reducer creates a smooth transition between different FRP pipe diameters, helping control flow disturbance and pressure loss in industrial piping systems. Corrosion-resistant composite construction supports aggressive chemical service. Concentric or eccentric configurations, inlet and outlet diameters, transition length, pressure rating, resin system and connections can be customized for process requirements.
| Item | Typical Technical Specification |
| Product Name | FRP Reducer |
| Primary Function | Provide a controlled transition between two different FRP pipe diameters |
| Typical Manufacturing Range | Large end DN25–DN4000; small end selected according to the required reduction |
| Reducer Type | Concentric reducer or eccentric reducer |
| Orientation of Eccentric Reducer | Flat-on-top for gas-pocket control or flat-on-bottom for drainage/solids service, as specified |
| Size Designation | DN1 × DN2, where DN1 is the larger diameter and DN2 is the smaller diameter |
| Dimension Symbols | Large-end diameter D1, small-end diameter D2, overall length L, eccentricity e and wall thickness t |
| Transition Geometry | Straight conical, curved transition or project-specific aerodynamic/hydraulic profile |
| Typical Pressure Classes | PN6, PN10 and PN16; transition length and laminate are selected for pressure and stiffness |
| End Connections | Butt-and-wrap, bonded socket/spigot, flanged or mixed connection |
| Resin Options | Isophthalic polyester, vinyl ester, novolac vinyl ester or process-qualified resin |
| Corrosion Barrier | Continuous resin-rich barrier across both ends and the complete transition |
| Structural Reinforcement | Directional reinforcement adjusted for diameter change, axial load transfer and end-joint configuration |
| Abrasion Option | Abrasion-resistant liner for slurry, solids or high-velocity service |
| Manufacturing Method | Contact molding, filament winding over a mandrel, compression molding or segmented fabrication |
| Inspection | D1, D2, length, concentricity/eccentricity, end squareness, internal transition, thickness, cure and pressure test |
| Applicable Standards | ASTM D5685, ASTM D6041, ASTM D3840, ASTM C582 and ASME NM.2 |
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