pipeline negative buoyancy bag weight
HeShan Negative Buoyancy bag weight, made of Non-toxic pollution-free and
enviromentally friendly geotextile fabric with special producing technology, is a ZHYD's
patented system, which is one of the the most advanced technologies for pipe-laying in the world , providing an effective, environmentally friendly and economical solution to your pipelines weighting requirements.
Heshan bag Weights are the replacement of the traditional pipelines weighting such as
cement press products or concrete coating. Heshan bag weights can be used on all types of pipelines , both steel and plastic, including gas, oil,water and coal gas, crosing rivers, lakes, foreshore,swamp,marsh, etc. for buoyancy control. It has the following advantages:
Fast to construction
1. Installation is simple. Fill the Heshan bag weights with gravel from a local source,distribute along the right of way, lower over the pipeline, and back-fill.
2. the bags can be filled up and deliverred to the site Within three days.
3. No extra trench depth required. Less trench dewatering required. construction period is shortened.
Construction cost is cut down
1. Fill the Heshan bag weights with gravel from a local source, handling and transporting costs are saved.
2. no heavy-duty equipment for hoisting, so equipment cost is saved.
3. Heshan 's "effective weight" under water often exceeds that of equivalent concrete weights or cement press products due to less water being displaced. for certain length of pipe, less weighting is required, so the procurement cost is cut down.
4. Leftover Heshan bags can be folded up and put on a shelf until your next project.
Safety,Environmentally friendly and Coating protection:
1. Heshan bag is purely made of polypropylene fabric, with features of corrosion-resistant ,anti-acid, non-pollution to water quality, which is a kind of reinforced material with high durability.
2. Heshans non-biodegradable polypropylene fabric is filled with local gravel, so it is as permeable as the ballast used to fill it, allowing groundwater and cathodic protection an easy path.
3. Heshan bag weights are a soft buoyancy control, allowing the pipeline the ability to move slightly while still maintaining negative buoyancy and coating protection.
4. Heshan 's "effective weight" under water often exceeds that of equivalent concrete weights or cement press products, and the weight tilting problem is avoided. |
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