Eccentric Pipe Reducer – No Liquid Trapping, Flat Bottom
Eccentric pipe reducer ensures smooth flow in horizontal lines. Available in stainless steel, cast iron. ASME B16.9 standard. Request a free quote now!
Description
Eccentric Pipe Reducer – No Liquid Trapping, Flat Bottom
Core Features & Design Advantages
- Pipe reducer stainless steel (304/316L): Acid and high-temperature resistant, suitable for food, pharmaceutical and marine service environments.
- Cast iron eccentric reducer: Cost-effective and shock-resistant, widely used in drainage and municipal sewage projects.
For large-diameter reducing applications, the eccentric bell reducer delivers gradual diameter transition and lowers installation stress.
Eccentric Pipe Reducer Specification Chart
| Large End × Small End (inch) | Wall Thickness Schedule | Length L (mm) | Pressure Class | Common Material |
|---|---|---|---|---|
| 4 × 3 | Sch 40 | 152 | Class 150 | Stainless Steel 304 |
| 6 × 4 | Sch 40 | 178 | Class 150 | Carbon Steel A234 |
| 8 × 6 | SCH 40 | 203 | Class 300 | Cast Iron |
| 10 × 8 | Sch 80 | 229 | Class 300 | Stainless Steel 316L |
| 12 × 10 | Sch 160 | 254 | Class 600 | Alloy Steel |
Application Scenarios of Eccentric Pipe Reducer
- Oil and gas gathering and transmission pipelines (prevent condensate accumulation);
- Inlet and outlet pipelines of chemical reactors (eliminate flash explosion risks caused by trapped gas);
- Power plant feed water and steam pipelines (mitigate water hammer and internal corrosion);
- Horizontal main pipelines in sewage treatment plants (maintain natural flow gradient);
- CIP cleaning systems for food and beverage industry (prevent residual liquid and bacterial growth).
Buyer Common FAQ
Q1: When to choose an eccentric reducer instead of a concentric reducer?
A: Eccentric reducers are mandatory for horizontal pipelines carrying condensable media such as steam and compressed air, or applications requiring top gas accumulation prevention. Installed with the flat side downward, it ensures continuous liquid discharge. In contrast, concentric reducers are ideal for vertical pipelines or fully filled single-medium vertical sections. Improper selection may lead to water hammer, corrosion perforation and even explosion hazards.
Q2: What are the price and performance differences between stainless steel eccentric reducer and cast iron type?
A: The unit price of stainless steel grades (304/316L) is about 3 to 5 times that of cast iron. It provides outstanding resistance to chloride ion, acid and alkali corrosion, along with superior high-temperature mechanical strength. Cast iron eccentric reducer features low cost and good vibration & noise reduction performance, fit for normal-temperature clean water and sewage conveyance, yet it has high brittleness and poor resistance to oxidizing acid. We recommend material selection based on medium corrosivity, operating temperature and design service life. Free material comparison sheets and life cycle cost analysis are available upon request.
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