Natural aeration and ventilation system with air ducting on both sides to improve the hygienic situation in the drinking water storage tank.
Air filter unit L661 with connection piece on both sides, matching the air pipe, made of stainless steel material, equipped with one pre-filter and one HEPA filter, with two stainless steel condensate drains DN 1/2’ before and after the filter package, each with built-in ball valve, including wall brackets.
The air filter unit is installed directly between the air duct. It contains a pre-filter of filter class ISO ePM10 75% in accordance with EN ISO 16890 and serves as a second filter stage. The pre-filter is required to increase the service life of the downstream HEPA filter, which forms the third filter stage. This corresponds to filter class H13 and has a separation efficiency of at least 99.99% in accordance with DIN EN 1822. Made entirely of stainless steel, with the exception of the filter material.
Filter contamination is monitored by a pressure transducer. The pressure is recorded upstream and downstream of the filter pack and the pressure difference is shown on a four-digit display. In addition, the differential pressure is measured by means of an analogue value 0 ... 10 V, 4 ... 20 mA is provided.
Standard measuring range: 0 ... 1000 Pa, preset to 500 Pa Supply voltage: 24 V AC/DC Linearity: ±1.5% Temperature drift: 0.1% per K Cable gland: M 12 Protection class: IP 65 Relay output: Potential-free changeover contact
It is possible to connect to a telecontrol or alarm system.
A power connection must be provided on site.
Maximum flow rate: 3000 m³/h
Dimensions: Air filter box L x W x H = 720 x 640 x 725 mm