Eccentric Reducers

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Eccentric Reducers

Goel’s eccentric glass reducers are designed to connect two different nominal diameters (DN) while maintaining a flat side alignment instead of a common centerline. This offset geometry prevents air or liquid entrapment, making eccentric reducers especially suitable for horizontal pipelines and drainage-critical applications.

Manufactured from borosilicate glass 3.3, eccentric reducers ensure smooth flow transition, excellent chemical inertness, and compatibility with full vacuum operations. These reducers are widely used where process efficiency, cleanliness, and visual inspection are essential.

Technical Specifications

Parameter

Specification

Product Type

Eccentric Glass Reducer

Reducer Series

PR-E / PR Series

Material

Borosilicate Glass 3.3

Reduction Type

Offset (Flat-side alignment)

Nominal Diameter Range

DN 15 → DN 800 (DN 1000 on request)

Orientation

Horizontal pipelines

Surface Finish

Smooth internal glass bore

Vacuum Rating

Suitable for full vacuum

Pressure Capability

Low positive pressure (system dependent)

Chemical Resistance

Excellent

Transparency

Full visual monitoring of flow

Drainage Characteristics

No pocket / no air locking

Standards Compatibility

Glass pipeline system standards

Typical Catalogue Dimensions (Indicative)

Reducer Code

Inlet DN

Outlet DN

Length (mm)

 Alignment

PR18/3-E

450

80

375

Bottom flat

PR18/4-E

450

100

375

Bottom flat

PR18/12-E

450

300

375

Bottom flat

PR24/4-E

600

100

400

Bottom flat

PR24/12-E

600

300

400

Bottom flat

Top-flat or bottom-flat orientation available on request.

Applications

  • Horizontal glass pipelines
  • Drain-sensitive process lines
  • Distillation and solvent recovery systems
  • Chemical transfer lines
  • Systems requiring air-lock prevention

Key Advantages

  • Prevents air or liquid accumulation
  • Improves drainage efficiency
  • Reduces risk of vapor pockets
  • Ideal for continuous flow systems
  • Excellent chemical and thermal resistance
  • Long service life with minimal maintenance

Customization Options

  • Custom DN combinations
  • Special reducer lengths
  • Top-flat or bottom-flat alignment
  • Jacketed eccentric reducers (on request)

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