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Sermac

Sermac Delivery Elbows and Couplings

Sermac Delivery Elbows and Couplings

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This product category includes delivery elbows and couplings, both of which are vital components in the concrete delivery system of Sermac concrete pumps. Delivery elbows allow redirection of concrete flow, especially at critical points like the pump outlet (First Elbow), while couplings ensure secure, pressure-resistant joints between pipes, elbows, hoses, and reducers. Both are engineered to endure the demanding conditions of high-pressure concrete pumping and abrasive materials.

Key Features

Delivery Elbows

  • High-Strength Construction: Made from robust, wear-resistant steel capable of withstanding the internal pressure and abrasion caused by concrete.

  • Hardened Internal Lining: Many elbows are internally lined or heat-treated to increase wear life and reduce maintenance frequency.

  • Multiple Bend Angles: Available in standard angles such as 30°, 45°, 90° for flexibility in configuring the pipeline layout.

  • Specialized “First Elbow”: Heavy-duty elbow located at the concrete pump outlet, designed to handle maximum pressure and flow volume.

  • Flanged or Coupling-Compatible Ends: Connection points are tailored for Sermac delivery lines and sealing systems.

Couplings

  • Leak-Proof Joints: Engineered for a tight and reliable seal under heavy vibration and pulsating flow.

  • Quick Assembly & Disassembly: Hinged, clamp-type couplings allow for rapid setup and easy maintenance.

  • High Load Capacity: Designed to endure the mechanical stresses of daily operation on dynamic job sites.

  • Compatibility with Sermac Systems: Precisely matches Sermac pipe dimensions and connection standards for consistent fit.

Applications in Sermac Concrete Pump Systems

Delivery Elbows

  • Installed at the pump outlet (First Elbow) to initiate concrete flow into the delivery system.

  • Used to redirect flow around obstacles or fit delivery lines into constrained spaces.

  • Integrated into the boom or ground pipeline for flexible system design.

Couplings

  • Connect individual sections of straight pipe, elbows, reducers, and hoses.

  • Facilitate rapid changeover and cleaning during job transitions.

  • Provide tight, safe sealing between moving parts of the delivery system.

Component Types 

Component Description
Large Grey Elbow (Likely “First Elbow”) Mounted directly to the Sermac pump outlet. May feature auxiliary ports for washouts, sensors, or air relief. Heavy-duty build for maximum pressure resistance.
Red Elbows (90° Bends) Standard delivery elbows used to change direction mid-line. Different colors may indicate size or material differences.
Red Couplings Hinged clamp-type couplings with lever or bolt locks. Designed for quick, secure assembly.
Grey Straight Pipe Segment Standard delivery pipe section, typically used in combination with elbows and couplings.

Identification & Ordering Tips

To select the correct elbows and couplings for your Sermac concrete pump, follow these steps:

  1. Identify your Sermac model and serial number to match parts with the pump’s specifications.

  2. Refer to the Sermac parts manual or contact an authorized parts distributor.

  3. Confirm pipe diameter (commonly 100mm, 125mm, etc.) and wall thickness.

  4. Specify the bend angle and radius for elbows (e.g., 90° short-radius elbow).

  5. Check connection type compatibility (flanged vs. coupling-style).

  6. Inspect for part numbers or casting marks on existing components, when available.

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