ELEBAR Ø80 DECOMPRESSION VALVE FOR FREEZING ROOMS

Pressure Relief Valves for Refrigerated Rooms for Freezing Applications

FREEZING ROOM DECOMPRESSION VALVE, Ø80, 220V/16W “ELEBAR”.

Pressure relief valves are designed to equalize the internal pressure of the room with the external ambient pressure through ventilation. The absence of these components may cause various problems in the joints of the refrigeration rooms, ice formation, etc.

Method for calculating the required air flow for equalizing the internal and external pressure:

Q = K × V × Δt

Where:

• Q = Required air quantity in litres per minute (L/min)
• K = Constant, 3.66
• V = Refrigerated room volume in cubic metres (m³)
• Δt = Maximum temperature change inside the room during a one-minute period

Example: A cold-storage room (positive-temperature application) with a volume of 60 m³ and a temperature variation during 1 minute of 2°C. Result: 3.66 × 60 × 2 = 439 L/min, required air quantity.