Shaft Seals & Pipe Clamps
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 the annulus between jacking pipe and ground to allow bentonite slurry to reduce jacking loads.
- Prevents inadvertent returns caused by lost slurry pressure.
- Pipe clamp maintains positive force on the pipe string to counteract earth and hydrostatic loads on the MTBM system.
- Shaft seals and pipe clamps are designed to meet project requirements.
- High‑waterhead designs available.
- Designs include entrance seals, exit seals, and pipe clamps.
Testimonials
We have been using Akkerman trenchless equipment for as long as we’ve been in the game. From TBMs to GBMs and related equipment, there is no other manufacturer in our opinion. The technology and equipment capabilities continue to advance. Akkermans after market support always takes the time to assess and provide solutions to any challenges we’ve encountered.