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Tylox® MT Gasket for Microtunneling & Pipe Jacking

High-Performance Gaskets Engineered for the Demands of Trenchless Pipe Installation

The Tylox® MT Gasket is a purpose-built microtunneling gasket designed for the unique joint sealing challenges of microtunneling and pipe jacking — trenchless installation methods that subject pipe joints to sustained axial forces, angular deflection, and mechanical loading that standard pipe gaskets are not designed to handle. Engineered to perform under the full range of conditions encountered during trenchless construction, the Tylox® MT Gasket delivers reliable, watertight joint sealing from the first push through the ground to decades of in-service performance.

As a trenchless pipe gasket, the Tylox® MT is available in configurations for concrete jacking pipe as well as mechanical transition connections — providing a complete sealing solution for the complex pipe systems that modern trenchless infrastructure projects require. Every Tylox® MT Gasket is manufactured to meet ASTM C1619, the governing standard for elastomeric seals used in microtunneling and jacking pipe applications.

Designed for the High-Load Environment of Microtunneling and Pipe Jacking

Microtunneling and pipe jacking place demands on pipe joints that no other installation method replicates. As pipe segments are pushed sequentially through the ground, each joint in the string bears the cumulative jacking force transmitted from segment to segment — forces that can reach significant magnitudes on longer drives or in difficult soil conditions. At the same time, horizontal and vertical curves in the drive alignment introduce angular deflection at each joint, requiring the pipe jacking gasket to maintain a continuous, watertight seal even as the pipe string bends to follow the designed path.

The Tylox® MT Gasket is designed with these conditions in mind. Its rubber profile and dimensional geometry are engineered to compress correctly across the full range of angular deflections permitted by the joint design, maintaining adequate gasket contact stress around the entire joint circumference even under the combined influence of jacking loads and alignment changes. The result is a joint that seals reliably during installation and continues to perform throughout the operational life of the pipeline.

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Product Benefits

  • Purpose-built microtunnel pipe gasket engineered for the axial loads and angular deflection demands of microtunneling and pipe jacking operations
  • Qualified as an ASTM C1619 gasket, meeting material and dimensional requirements for elastomeric seals in concrete structures
  • Available in mechanical transition configurations to connect dissimilar pipe types or diameters within a single pipeline system
  • Precision-manufactured rubber profile maintains consistent compression and sealing performance throughout the jacking process
  • Resists infiltration, exfiltration, and root intrusion throughout the pipeline's service life after installation is complete
  • Suitable for sanitary sewer, stormwater drainage, and other municipal infrastructure trenchless installations

Achieve Reliable Trenchless Joint Sealing Across Complex Pipeline Systems

The Tylox® MT Gasket reflects Hamilton Kent’s commitment to supporting the full range of trenchless construction methods used in modern municipal and civil infrastructure. As microtunneling and pipe jacking have grown into established techniques for installing gravity sewer, stormwater, and utility pipelines in challenging urban and suburban environments, the performance requirements for jacking pipe gaskets have become increasingly well-defined — and the Tylox® MT Gasket is designed to meet them.

Selecting the right concrete jacking pipe gasket is a critical step in any trenchless project. An undersized or incorrectly specified gasket can fail to maintain adequate compression under jacking loads, compromising joint integrity before the pipeline ever enters service. The Tylox® MT Gasket’s profile geometry and material specification are engineered as a complete concrete jacking pipe gasket solution — one that accounts for the forces, deflections, and long-term service conditions that define the microtunneling and pipe jacking environment.

A critical feature of the Tylox® MT Gasket product line is its availability in mechanical transition gasket configurations. Trenchless projects frequently require connections between pipes of different materials or diameters — for example, where a microtunnel drive ties into an existing sewer system constructed from a different pipe material. Mechanical transition gaskets allow these connections to be made within a single integrated pipeline system without the need for external adapter structures, reducing construction complexity and potential leak points.

Hamilton Kent works directly with concrete pipe manufacturers and project teams to ensure that the correct Tylox® MT Gasket profile is specified for each application. The combination of jacking pipe and mechanical transition gasket configurations within a single product family simplifies the specification and procurement process for projects that require both.

Synthetic Rubber Gasket Specifications

The Tylox® MT Gasket is manufactured from synthetic rubber compounds formulated to meet the physical and dimensional requirements of applicable ASTM standards for elastomeric seals used in trenchless and jacking pipe applications. As a qualified ASTM C1619 gasket, each product is held to tight production tolerances to ensure consistent performance across all joint positions in a pipe jacking drive.

AS Materials:

  • ASTM C1619 – Design-only

AS Dimensions:

  • ASTM C1619 – Design-only

Planning Your Microtunneling Pipe Gasketing Needs

Gasket selection for microtunneling and pipe jacking requires careful consideration of the specific joint geometry of the concrete jacking pipe being used, the anticipated jacking forces for the drive, the maximum angular deflection permitted by the alignment design, and whether mechanical transition connections are required at any point in the pipeline system. Whether you are specifying a microtunnel pipe gasket for a straightforward gravity sewer drive or a trenchless pipe gasket for a complex multi-diameter pipeline system, Hamilton Kent’s technical team is available to assist engineers and contractors in reviewing these parameters and identifying the correct Tylox® MT Gasket specification before the project moves to procurement.

Choosing Your Tylox® MT Gasket Model

The Tylox® MT Gasket is available as both a standard jacking pipe gasket and a mechanical transition gasket, with configurations matched to the nominal diameters and joint geometries of concrete jacking pipe used in microtunneling and pipe jacking projects. The appropriate gasket model is determined by the nominal pipe diameter, the specific joint geometry of the jacking pipe being supplied, and whether a standard or mechanical transition configuration is required.

For projects where the pipeline system includes connections between dissimilar pipe materials or sizes, Hamilton Kent’s mechanical transition gasket configurations allow these connections to be detailed and procured as part of the same Tylox® MT Gasket specification — simplifying the supply chain and ensuring dimensional compatibility across the full pipe string.

Hamilton Kent works with concrete pipe producers to qualify the Tylox® MT Gasket — whether used as a microtunneling gasket, a concrete jacking pipe gasket, or a mechanical transition gasket — for use with specific jacking pipe products, providing engineers and contractors a straightforward path from specification to procurement. For project-specific selection support, contact Hamilton Kent’s technical team to review drive parameters and pipe specifications.