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Straub concrete coupling
concrete pipe coupling
concrete pipe coupling
pipe coupling for concrete manhole
Straub concrete coupling
concrete pipe coupling
concrete pipe coupling
pipe coupling for concrete manhole

Straub Concrete Pipe Couplings

Municipalities often require design pressures up to 50 psi/345 kPa for sewer lines running near drinking water pipelines, for lines under pressure, and even on manhole connections in locations with high water tables. These joints must surpass the specification requirements of CSA A257 or meet ASTM C361. Outside of costly installation methods such as injection grouting, there has not been a cost-effective and easy-to-install solution to meet these requirements – until Straub introduced concrete pipe couplings.

If you require pressure couplings for concrete pipes made from other materials, please contact your Hamilton Kent representative

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Product Benefits

  • Fast and easy installation
  • Lightweight, low-profile design
  • Cost-effective when compared with traditional methods
  • Compensates for axial movement
  • Bell and spigots do not need to be specially designed
  • Eliminates the need for steel end rings

Hamilton Kent, partnering with Straub, has designed a coupling to meet these requirements. The HK Coupling by Straub is a modern solution designed with either two or three bolts to be lightweight and low-profile, enabling fast and easy installation around all sizes of the straight wall pipe or manhole – including bell and spigot, and tongue and groove joint designs.

The coupling components are specially designed for use with concrete for these applications. The rubber gasket will compensate for minor pipe imperfections such as misalignment, angular deflection, gap, ovality and rough concrete surfaces. The coupling housing is made of 316L stainless steel and lock parts so that it is resistant to corrosion.

Pressure Rating

Couplings by Straub are designed to provide watertight connections up to 50 psi/345 kPa.

Linear Misalignment

1-2% of outer diameter (max 0.25”/6 mm) is admissible. Larger misalignment must be rectified into angular deflection (Cardan principle).

 

Related Straub Products

Hamilton Kent’s coupling solutions extend well beyond concrete pipe applications to cover a broad range of materials and environments. For steel and stainless steel pipelines, our steel and stainless steel restraint couplings provide reliable axial restraint with easy installation. When working with ductile and cast iron pipes, our ductile and cast iron restraint couplings deliver high-strength connections built for demanding conditions. For plastic piping systems, our PVC restraint couplings offer a dependable, corrosion-resistant option.

In marine environments, Hamilton Kent offers fire-rated marine restraint couplings and flexible marine couplings designed to handle dynamic conditions offshore.

For maintenance and repair, repair coupling clamps and flex repair couplings provide fast, effective solutions to restore pipeline integrity. Where axial restraint is not necessary, the non-axial restraint coupling offers a flexible, secure alternative. Finally, the HK test coupling facilitates easy pressure testing and temporary connections.

Versions W1, W2 and W5 vary by material and size requirements. Please contact your HK representative for assistance with product selection.

Please contact your HK representative for assistance with product selection.


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