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Plastic medium outstanding contribution is carried in irrigation works
From;  Author:Stand originally
In congress of water of the 5th world (on IWA) , two companies emphasis showed rich salary and boreal Europe chemical industry plastic (for example polyethylene PE) is in the important role that save and carries place of drinking water field to act. Today world population expands. Drinking water is become crucial with costly natural resources in more and more exiguous environment, as pass through in a lot of big cities by tens of thousands the conduit with long kilometer because service life is finite and generation is slack, afore-mentioned problems (drinking water natural resources is scarcer and scarcer) become more serious.
Use a convention if material is rolled steel, cast-iron the pipeline system that makes, because join problem is mixed,suffer easily normally corrode and cause destroy. System of this kind of pipeline produces bilge in conduit interior, destroy water quality and reduce the flow of water as the elapse of time. The problem with the shortage of water natural resources that adopts a variety of measure to settle future and slack conduit very be necessary, these measure include conduit to standardize the action, good conduit is designed and install technology, and choose the requirement that can adopt the most severe exacting special PE makes conduit of raw material PE having main effect in losing conduit network -- the pipeline that uses PE data solders convenient, flexibility is good, and developing country of accord with stage is not had to low cost installation slack, the demand PE of 0 maintenance system is using what used in 50 years in the past at new pipeline network and big to a lot of Europe city to already began slack old iron pipe now be confirmed in repair very applicable.
For example, the interview of peaceful of water company Thames Water Utilties(with the biggest England) of person water company, used PE pipeline in great quantities when the pipeline network that replaces London ageing. New pipeline is faster, predicting service life but alternate 100 years of above.
Interview of Thames Water(peaceful person water company) advanced and advisory Mike Shep Herd says tubal network:" Because they do not suffer London,we choose PE conduit is of caustic soil influence. PE conduit flexibility is better, because this can bend circumnutate,pass subterranean roadblock. When and be soldered when them rising, conduit fittings is not easy slack as time elapse, PE is in charge of a net not to suffer the effect that the ground moves, the most important is, they can undertake installing through all sorts of blame excavate technologies. They can undertake installing through all sorts of blame excavate technologies..
"Blame excavate technology can come true faster, more economy and the installation that destroy lesser finally. This will make works of Thames Water water and our client is benefited from which. This will make works of Thames Water water and our client is benefited from which..
In Europe the small-bore drinkable conduit of 76 % 2005 use PE to make, can explain PE material is the optimal choice that will not lose water system tube-shaped part from this.
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