Schwing Reduction Pipes (Tapered Tubes / Pipeline Reducers)

Reduction pipes, also referred to as tapered tubes or reducers, are essential components within Schwing concrete pump delivery systems. These specialized pipes are engineered to transition between larger and smaller pipeline diameters, allowing for smooth, efficient flow of concrete while minimizing pressure loss and turbulence.

Often used between the main delivery line and end-of-line accessories such as hoses or placing booms, these reducers ensure continuous concrete flow and system integrity under high pressure and abrasive conditions.

Key Features:

• Tapered Internal Design:
  Gradual diameter reduction (e.g., from DN150 to DN125) reduces turbulence and concrete clogging at transition points.

• High-Wear Resistance:
  Manufactured from hardened alloy steel or heat-treated carbon steel to withstand abrasion from high-flow concrete mixtures. Optional chrome or carbide lining may be available for extended wear life.

• Standardized Diameters:
  Available in common sizes such as:

  • DN150 to DN125

  • DN125 to DN100

  • DN100 to DN80
    (DN = Nominal Diameter in millimeters)

• Multiple Lengths:
  Available in lengths like 3000 mm, 2000 mm, or 1000 mm, depending on application and system configuration.

• Compatible Coupling Ends:
  Designed with connection ends suitable for Schwing-style systems, including:

  • SK Couplings (e.g., SK148, SK125)

  • HD (Heavy Duty)

  • ZX (Quick Clamp)

  • MF (Metric Flange)

Applications in Concrete Pump Systems:

• Connecting boom pipes to flexible hoses for manual placement.

• Transitioning pipeline sizes to suit specific jobsite requirements.

• Controlling flow velocity to avoid segregation or blockage.

• Adapting to accessories like end hoses, reducers, or clean-out devices.

Example Model:

• Tapered Tube DN150/125 – 3000 mm

  • Inlet Diameter: 150 mm

  • Outlet Diameter: 125 mm

  • Total Length: 3000 mm

  • End Type: SK148 to SK125 compatible (or specified coupling)

Ordering & Fitment Guidelines:

To ensure proper fit and performance, please:

1. Confirm pump model and series (Schwing model #, boom type, etc.)

2. Specify inlet and outlet DN sizes

3. Provide the desired length

4. Indicate connection type (e.g., flanged, clamped, or custom coupling style)

5. Check existing pipe for a stamped part number or reference code

6. Consult the Schwing parts manual or your pump's service history