Water conservation is becoming a major issue worldwide, so much so that gas valve manufacturer Enolgas Bonomi, based in Brescia, Italy, has instilled upgrades into its LDS (Leak Detection System) for water. Now armed with an updated product, featuring a touchscreen display and automatic recognition of micro flow (generally dripping), normal flows, and excessive flows (generally caused by pipe rupture), Enolgas is renewing LDS marketing efforts.
The LDS comprises a control unit and single or multiple “hydraulic units” incorporated into the water supply of commercial or residential buildings. A solenoid in each hydraulic unit monitors water flow, data from which is fed back wirelessly to the central control.
When networked into a building security or access system to determine the presence or absence of occupants (and thus the ability of human operator intervention), the system can be set to sound an alarm and automatically shut off water supply if a preset limit is exceeded under either scenario. Shutoff is performed via an electrically actuated ball valve. Control via a cellphone is also possible.
Depending on the results of the diagnosis and on the two modes (home and away), the system will activate procedures proportional to the degree of alarm, varying from a minimum level of an acoustic alarm to a maximum level of complete suspension of the water supply. The system can be manually deactivated.
Anthony Labate, an Enolgas official, said the company’s latest LDS is configured for use with water supplies employing dezincification resistant (DZR) brass, making it suitable for use in most countries throughout the world. The most recent application of the LDS was an installation at a hotel in Bangkok, Thailand, where each of the hotel’s 200 rooms were outfitted with hydraulic units that were centrally monitored.