Pneumatic actuation, isolation and suspension specialist, Air Springs Supply offers a versatile range of Pronal inflatable lifting cushions and pipe stoppers designed for various installation, maintenance and dewatering operations.
Pronal’s seamless CLP lifting cushions offer an easy, safe and predictable lift in areas with restricted access, especially in rugged, remote and particularly muddy or sandy locations for work on pipelines, or to obtain sufficient clearance and a firm foundation for pipeline lifts from beneath.
Pronal lifting cushions can delicately raise pipelines, pumps and associated dewatering equipment in addition to hoisting all types of trucks, tracked vehicles, beams, bridge components, building components, machinery and resource development structures.
Air Springs Supply National Sales and Marketing Manager Mr James Maslin describes the lifting cushions as superbly engineered and developed for industrial, municipal, military and civil tasks by the French elastomer specialist Pronal. Made from tough and durable materials, the cushions can lift tanks or split rocks in quarries and mines.
Pronal’s lift cushions include ultra-thin bags (just 20mm thick deflated) that can lift weights of more than 65 tonnes each as well as 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 when paired up).
Apart from the standard models, Pronal also offers custom-engineered cushions made to particular shapes and sizes to perform particular tasks.
These lift cushions are complemented by Pronal’s family of pipe stoppers, including the Vari Plug range used for maintenance, testing and emergency tasks. Mr Maslin explains that the 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. Inflated 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, waste water and non-petroleum based solutions.
Vari Plugs fit pipe diameters of 70-1500mm in industrial, resources, municipal and infrastructure applications, and are available with or without a flow-through bypass.
Pronal’s OPAP and OFR Pollu-Plug stoppers offer ongoing protection against contamination of waterways, and are permanently and unobtrusively fitted in water and sewerage lines ready for instantaneous inflation by remote triggering as soon as an emergency arises in industrial, civil and municipal applications. Normal flow is allowed by the un-inflated elastomer-coated Pollu-Plug, which is located flat inside the top of the pipeline. It is connected by an air supply line to an all-weather control panel and nitrogen inflation cylinder supplied by the customer and located outside the pipe.
Pollu-Plugs are available in diameters of 100-1000mm and lengths of 450-2050mm (both measurements when empty). Custom sizes can be produced on request.