Rectangular self-regulating flow variator SagiCofim Technical features The VRRK series circular self-regulating flow variator keeps the predefined flow constant, with a precision of +/- 5%, despite any pressure or airflow variation, without the need of external power. It works through a system of blades that - when touched by the air flow - interact with each other through an external graduated spring. The air flow is predefined, if necessary it can be adjusted before installation. The maximum pressure drop differential for a constant air flow is 1000 Pa; the minimum pressure drop value for the activation of the variator is related to the size and goes from 80 to 120 Pa. The version VRRK 500-1-i-30, with 30mm thick thermo acoustically insulated double case, is available. VRRK 500 double version
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