Natural ventilation system with air ducting on both sides to improve the hygienic situation in the drinking water storage tank.
Cylindrical air filter unit L252 with connection piece on both sides, matching the air pipe, made of stainless steel, equipped with a HEPA filter H13, with 1/2’ condensate drain in the centre and ball valve for connection to a drain pipe provided by the customer.
The cylindrical air filter unit is installed directly between the air duct. It contains a HEPA filter with a separation efficiency of 99.99% in accordance with DIN EN 1822 for optimum cleaning of the supply air. An inspection opening on the housing ensures easy filter replacement. Made entirely of stainless steel, with the exception of the filter material.
Cylindrical air filter unit welded under inert gas, pickled and passivated in an immersion bath.
The filter contamination is monitored by a pressure transducer. The pressure is recorded before and after the filter and the pressure difference appears 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: 300 m³/h
Dimensions without connection pipe:
Overall length = 900 mm Flange outer diameter = 340 mm
Dimensions with connection pipe:
Overall length = 1225 mm
Both connection pieces >= DN 130 are equipped with condensate drain and ball valve.