Valves utilised in rainwater-collection system

Servo-assisted solenoid valves from Burkert are providing the top-up facility on rainwater-collection systems provided by Rainharvesting Systems.

The collection systems are helping to offset the ever-growing demand for drinking water, providing an alternative water source for facilities such as toilets, washing machines, garden irrigation systems and swimming pools.

In addition, the large amounts of water the systems collect also helps reduce the risk of flooding.

Rainharvesting Systems provides systems for domestic premises, as well as for schools, offices and industrial and agricultural buildings.

The systems are fully automatic, and only activate when water is required.

In the event that there is insufficient rainwater in the collection tank to meet demand, the system has the facility for mains-water top-up.

This is provided by the mains-water top-up unit, via a solenoid valve that operates to let mains water fill the tank to the minimum level required.

The solenoid valve is a Burkert 6213, 2/2 servo-assisted unit, which can be used universally on fluids.

Operated by a remote low-level float switch on the rainwater tank, the 6213 is IP65 rated, and is characterised by its switching from zero bar, its high flow rate, and its low-noise, anti-water hammer design: the valve is actually designed to close slowly.

Moreover, the optimised design of the valve means that it requires minimal servicing, keeping maintenance requirements to a minimum.

In addition to the 6213 top-up valve, Burkert is also offering its 8175 ultrasonic level sensor and 8035 flow meter as a package for easy integration with the control systems used for rainwater collection.

Designed for liquid level or volume measurement in open or closed vessels, the 8175 level sensor provides the benefits of non-contact sensing over distances up to 10m.

The unit can be easily integrated into almost any building-management system, due to its 4-20mA output signal.

The 8035 flow meter completes the package, providing users with the ability to easily totalise the amount of water they are using.

Available as compact version, or for control cabinet or remote mounting, the 8035 is a robust IP65-rated, inline unit that also has a 4-20mA output for connection to building-management control systems.

Back to top