Shaft Seals & Pipe Clamps - Akkerman

Equipment

Akkerman Inc.

Akkerman manufactures project‐specific shaft seals and pipe clamps to complement our MTBM system on projects presenting high‐water head.

Shaft Seals contain a hydraulically adjustable pipe brake to control the pushback movement of the pipe string. Redundant rubber seals are efficiently spaced around the shaft seal to deter inflow into the shaft. Shaft seals are positioned on the entrance and exit shaft walls at project line and grade.

A Pipe Clamp, sometimes called a pipe brake, is used to contend with buoyant forces when installing an MTBM within a water body or on any projects with high water pressures. The pipe clamp’s adjustable chocker plates ensure that the Shaft Seal rubber does not invert with a high axial holding capacity.

MTBM Shaft Seals and Pipe Clamps are custom‐fabricated to match the outside diameter of the project pipe. Contact our knowledgeable sales team for more information on these products.

Features:
  • Prevents flow of groundwater into the jacking shaft. 
  • Seals annulus between jacking pipe and ground to allow bentonite slurry to adequately reduce jacking loads. 
  • Prevents inadvertent returns through loses slurry pressure. 
  • The pipe clamp maintains positive force on pipe string to counteract both earth and hydrostatic loads on MTBM system. 
  • Shaft seals and pipe clams are designed to meet project requirements. 
  • High waterhead designs available. 
  • Designs include entrance seals, exit seals, and pipe clamps.

Shaft Seals & Pipe Clamps

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Testimonials

Super Excavators, Inc. has enjoyed a long partnership with Akkerman over the years. We originally bought a competitor’s microtunnel system and had nothing but problems with quality and service. Finally we called Akkerman and bought their SL36 microtunnel system. Since then we have never looked back. We have bought several other pieces of equipment from Akkerman. From GBM equipment to ABIS to several microtunnel cutting heads. They have been great working with our staff to customize the equipment for our specific needs. We have put their equipment to the test on several projects by pushing the envelope in long drive distances and very difficult ground conditions. The equipment has responded well and together we have made modifications to continue to improve on efficiency. In our business it is necessary to have people their when you need them. Akkerman has done a great job at supplying quality equipment and servicing our needs in a timely matter, helping keep our work on schedule.

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