Water Journal : Water Journal February 2013
FEBRUARY 2013 WATER 99 Water Business One way to provide an easy, safe and predictable lift in areas with restricted access is by Pronal's seamless CLP lifting cushions, which can not only delicately raise pipelines, pumps and associated dewatering equipment, but also hoist all types of trucks, tracked vehicles, beams, bridge components, building components, machinery and resource development structures. Pronal's cushions range from ultra-thin bags (just 20mm thick de ated) that can lift weights of more than 65 tonnes each, to powerful spreading cushions that can exert hundreds of tonnes of force to lift loads, separate plant and machinery components for servicing, or extract quarried material. Complementary low-pressure CPB Maxi- Lift cushions can be used on land and under water, offering greater strokes of up to 700mm (or 1400mm where a pair are employed). "These are superbly engineered lifting cushions developed for industrial, municipal, military and civil tasks by the French elastomer specialists Pronal," says Air Springs Supply National Sales and Marketing Manager Mr James Maslin. "The materials involved are so tough and durable that the cushions are used to lift tanks or split rocks in quarries and mines. "In addition to the standard models -- such as the workhorse 920 x 920mm square cushion -- a major advantage of Pronal cushions is that they can be custom- engineered to particular shapes and sizes to perform particular tasks." Complementing Pronal lifting cushions is Pronal's family of pipe stoppers, including the Vari Plug range, which is used for for maintenance, testing and emergency tasks. Vari Plugs t pipe diameters of 70mm-- 1500mm in industrial, resources, municipal and infrastructure applications. In ated by compressed air on remote sites, the tough, polyamide-reinforced stoppers can be used to seal concrete, plastic and metal pipelines carrying potable water, stormwater, wastewater and non-petroleum based solutions. "These light, easily manoeuvred and easily positioned stoppers are typically employed for uses ranging from routine pipeline maintenance and testing through to emergency stopping of polluted water," says Mr Maslin. "They might be employed to block a leakage of waste entering the surrounding environment or waterways, for example, or to provide a tight seal upstream of a pipeline fault so it can be repaired in a safe, clean and clear environment." Vari Plugs are available with or without a ow-through bypass. In a pressure testing application, for example, a blank (non-bypass) stopper may be installed upstream in a pipe with another bypass- equipped stopper downstream so liquid or gas can be pumped into the space between. Ongoing protection against contamination of waterways from spills into water and sewerage lines is provided by Pronal's OPAP and OFR Pollu-Plug stoppers, which are permanently and unobtrusively tted in water and sewerage lines ready for instantaneous in ation by remote triggering as soon as an emergency arises in industrial, civil and municipal applications. When pipelines are not subject to an emergency, the unin ated stopper allows normal non- polluted contents to pass beneath the elastomer-coated Pollu- Plug, which is located at inside the top of a pipeline. It is connected by an air supply line to an all-weather control panel and nitrogen in ation cylinder, supplied by the customer and located outside the pipe. Pollu-Plugs are available in diameters of 100mm--1000mm and lengths of 450mm-- 2050mm (both measurements when empty). Custom sizes can be produced on request. For more information on these products please visit www.airsprings.com.au DELIVERING PUMPING SOLUTIONS Call us to discuss your applications: Melbourne 03 9793 9999 Sydney 02 9671 3666 Brisbane 07 3200 6488 Email: firstname.lastname@example.org Web: www.brownbros.com.au HYDROVAR, the modern variable speed pump drive is taking pumping to a new level of flexibility and efficiency. James Maslin demonstrates installation of a permanent anti-pollution Pollu-Plug.
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