This is a key fitting used in FRP piping systems to connect pipes of different diameters. Its primary function is to change the flow rate and velocity of the piping system.Fiberglass reducers are FRP pipe fittings used to connect pipes of different diameters, creating a gradual transition within the pipeline. Made from glass fiber reinforcement and resin, they offer a lightweight, corrosion-resistant solution for water treatment, chemical processing, and other industrial piping applications. The resin system, dimensions, and connections are selected to suit the conveyed medium, operating conditions, and adjoining pipes.
Depending on their geometry, reducers are primarily categorized into two types:
1. Concentric Reducer
Features: Flow lines change symmetrically as the fluid passes through it.
Applications: Most vertical pipelines and horizontal pipelines without specific flow distribution requirements.
2. Eccentric Reducer
Features:
Flat-bottom eccentric: The flat side is at the bottom. This is the most commonly used eccentric reducer, used in horizontal pipelines. It prevents air pockets from forming at the diameter change, facilitates emptying, and maintains a consistent bottom elevation.
Top-flat eccentric: The flat side is at the top. Less commonly used, it can be used to prevent the accumulation of solid particles at the top.
Applications: Horizontally installed pump inlet piping, pipelines that need to be emptied to prevent gas accumulation, or where a specific pipeline elevation must be maintained.
Main Application Areas
Pump inlet
An eccentric reducer (flat bottom) is typically used to prevent gas accumulation at the pump inlet and protect the pump impeller. It must be installed in a "flat top" configuration, with the flat portion at the top, to ensure automatic venting.
Pump outlet
A concentric reducer is typically used to connect to an expanded pipe to reduce flow rate.
Connecting piping systems to equipment interfaces
When the equipment interface size does not match the piping size.
Process requirements
Where flow rate needs to be changed to match process requirements.
In all fiberglass reinforced plastic piping systems where pipe diameter changes are required.
Key Advantages
The reducer section is designed with a reasonable structure to accomplish a smooth connection between different pipe diameters. When fluid passes through, it can reduce turbulence, vibration, and pressure fluctuations. When used at the pump inlet or pressure pipeline, it can avoid cavitation formation and improve the hydraulic efficiency of the system. The stable flow state is conducive to extending the service life of the pump and its supporting equipment.
Our FRP reducer adopts a compact structure design, which is perfect for installation in places with many pipes. It can be equipped with 150-level flat flange connections and is compatible with PVC, carbon steel, and stainless steel pipeline systems. Our manufacturing process strictly controls the dimensional accuracy, which guarantees smooth on-site installation.
We have independent mold development capabilities and a mature FRP production line, so we
can complete the mold-making and mass production of concentric or eccentric non-circular pipes. During the production process, we strictly control the order of glass fiber placement and resin ratio, which can guarantee uniform wall thickness and stable strength of each FRP reducer. Our own factory system lowers outsourcing risks, so the delivery time and quality will be more controllable.
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