There's no doubt about it, the marine industry is becoming ever more environmentally aware. At METS every exhibitor, it seemed, was keen to present its green credentials.
Pump specialist Rule, for example, is responding to the need to reduce the amount of processed mercury in the environment by launching a new range of mercury free float switches.
The company says that as well as being greener, the new models offer many other design improvements, creating 'next generation' standards for performance and ease of use.
Unlike traditional designs, none of the electrical elements are connected to the float, and so they are protected from water ingress and stress faults from continuous movement, says the company.
Instead, when the float is raised by bilge water, it turns a shaft which activates a 'snap action' switch within the main housing of the float switch.
The new units have a high level of water protection with long life seals, top mounted waterproof grommet protection for wiring and 'blocked' wiring connectors, all preventing corrosion and water wicking, says Rule.
The switches also have a detachable mounting base making them easier to install - and also easier to remove for cleaning and inspection. They also have larger float chambers for increased buoyancy.
All models have been tested up to one million cycles to ensure reliability, and the range will operate pumps drawing up to either 14 or 20 amps, says the company.
