| Strap-on PipeSaks
Following the success of our top-loading, set-on geotextile fabric weight (GFW), PipeSak Incorporated recently began offering a strap-on version.
The Strap-on PipeSak is designed to give the contractor or engineer another option for areas that would typically use either concrete bolt-on weights or concrete coated pipe.
Strap-on PipeSaks are designed to sit below the pipe when installed with a single polypropylene belt that is cinched around the pipe to secure. Installation is extremely quick and easy with no need for impact wrenches or other tools. In rocky conditions the strap-on PipeSak does double-duty by also holding the pipe up off the trench bottom till sand padding is dumped in.
Our strap-on bag continues with our patented top-loading design that allows for easy filling by hand or, for large numbers, with our Quick-Fill & Release Hopper System. As with our set-on weights, strap-on PipeSaks are 'soft' on the pipeline coating. The permeable geotextile fabric not only lasts 'forever' it also allows ground water AND cathodic protection an easy path to the pipeline.
Some of the 'pitfalls' of our competitors:
Concrete Bolt-on Weights
- Can be damaging to the coating.
- Very labour and equipment intensive to install on pipeline with two halves requiring line-up and bolts installed and tighted with impact wrenches (compressor/generator/extra deep sockets).
- Over-tightening a concern.
- The edges of concrete weights offer an area for potential stress concentration on the pipe if pipe is mishandled during lowering in.
Concrete Coated Pipe
- An expensive option when an on-shore application.
- Coating is either factory applied or applied in the field - both necessitate a long lead time.
- Field bending is often not on option with concrete coating. If a bend is required, pipe is typically bent prior to application of concrete that makes trucking EXTREMELY difficult.
- Installation is slow and requires more and larger equipment since pipeline has all weighting.
Strap-on PipeSaks are offered in sizes for 16" diameter pipelines and less.
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