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
I have spent the majority of my career working in the trenchless construction industry. This has allowed me to work with Akkerman equipment and personnel, from field level all the way to my current General Manager role with The Tunneling Company USA, LLC. I have always found their equipment and their employees to be capable and up for the challenge. Whether it is working in the torturous climates or meeting urgent timelines, Akkerman can be relied on to help us achieve our goals.