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These are key fittings in fiberglass piping systems used to connect pipes of different diameters. Their main function is to change the flow rate and velocity of the piping system.
Fiberglass reducers (FRP reducers) are pipe fittings used to connect pipes of different diameters, enabling smooth flow transition and pressure control in piping systems.
Unlike elbows, tees, or flanges, reducers are specifically designed to change pipe size rather than direction or connection type.
Products Description
Fiberglass reducers (FRP reducers) are pipe fittings used to connect pipes of different diameters, enabling smooth flow transition and pressure control in piping systems.
Unlike fiberglass elbows, tees, or flanges, reducers are specifically designed to change pipe size rather than direction or connection type.
These are key fittings in fiberglass piping systems used to connect pipes of different diameters. Their main function is to change the flow rate and velocity of the piping system.
Based on their geometry, reducers are mainly divided into two types:
Characteristics: The streamlines change symmetrically as fluid flows through.
Applications: Most vertical pipes and horizontal pipes without special requirements for fluid distribution.
Characteristics:
Flat Bottom Eccentric: The flat side is at the bottom. This is the most commonly used eccentric reducer, used in horizontal pipes. It prevents air pockets from forming at the reducer, facilitates venting, and maintains a consistent bottom elevation of the pipe.
Flat Top Eccentric: The flat side is at the top. Less commonly used, it can be used to prevent solid particles from accumulating at the top.
Applications: Horizontally installed pump inlet pipes, pipes requiring venting to prevent gas accumulation; or situations where a specific pipeline elevation needs to be maintained.
| Type | Function | Key Difference |
|---|---|---|
| Reducer | Change pipe diameter | Size transition |
| Elbow | Change flow direction | Angle change |
| Tee / Cross | Split or combine flow | Branch connection |
| Flange | Connect pipe sections | Detachable joint |
Fiberglass reducers are essential components in industrial piping systems, designed to connect pipes of different sizes while maintaining efficient flow and minimizing pressure loss.
Manufactured using high-strength fiberglass-reinforced plastic (FRP), these reducers offer excellent corrosion resistance, durability, and lightweight performance, making them ideal for chemical, water treatment, and marine applications.
We provide concentric and eccentric FRP reducers, fully customizable to your specifications.
Technical Specifications
| Parameter | Specification |
|---|---|
| Diameter | DN15 – DN3000 |
| Type | Concentric / Eccentric |
| Pressure Rating | 0.6MPa – 2.5MPa |
| Temperature | ≤120°C |
| Material | Polyester / Vinyl Ester / Epoxy |
| Standard | ANSI / DIN / JIS |
| Feature | FRP Reducers | Steel Reducers |
|---|---|---|
| Corrosion Resistance | Excellent | Poor |
| Weight | Lightweight | Heavy |
| Maintenance | Low | High |
| Lifespan | 20–50 years | 5–10 years |
| Cost Efficiency | High | Medium |
Custom Fiberglass Reducer Solutions
01
Tailored Size & Diameter Configurations
We manufacture fiberglass reducers based on your exact requirements, including custom inlet and outlet diameters, wall thickness, and length, ensuring a perfect fit for your piping system.
02
Multiple Resin Systems for Different Applications
Choose from polyester, vinyl ester, or epoxy resins to match your operating environment, whether it involves strong acids, alkalis, or high-temperature conditions.
03
Reinforced Design for High-Pressure Performance
Our FRP reducers can be engineered with enhanced structural reinforcement, providing reliable performance in high-pressure and demanding industrial systems.
04
OEM & Drawing-Based Manufacturing
We support full OEM/ODM services and can produce according to your technical drawings, specifications, or project requirements, ensuring precision and consistency for bulk orders.
Key Features & Benefits
✔ Excellent Corrosion Resistance
Suitable for acids, alkalis, and aggressive fluids
✔ Smooth Flow Transition
Minimizes turbulence and pressure loss
✔ Lightweight Structure
Easy to transport and install
✔ High Strength & Durability
Reliable under industrial pressure conditions
✔ Long Service Life (20–50 Years)
Low maintenance and replacement cost
Send us your requirements and get:
Free technical consultation
Competitive pricing
Fast production
Main Application Areas
Pump Inlet and Outlet:
◆ Pump Inlet: Typically uses an eccentric reducer (flat bottom) to prevent gas buildup at the pump inlet and protect the pump impeller. Installation must be "flat top," meaning the flat section is at the top, to achieve automatic venting.
◆ Pump Outlet: Typically uses a concentric reducer, connected to an enlarged pipe to reduce flow velocity.
Connection between Piping System and Equipment Interface: When equipment interface dimensions do not match pipe dimensions.
Process Flow Requirements: In pipe sections where flow velocity needs to be changed to match process requirements.
All FRP piping systems requiring diameter changes.
✔ Professional FRP manufacturer
✔ Advanced molding technology
✔ Strict quality control
✔ Global export experience
✔ Fast response within 24 hours
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Let our team help you select the right product
Talk to our experts, we can help you meet your requirements and provide assistance for your next project.