Further information for Helios Ventilatoren STS 315 (1221)
STS 3
5 Flexible connection Flexible connector for installation between fan and duct system. Prevents sound and vibration transmission and bridged assembly tolerances. Elastic cuff silicone-free PVC fabric cloth (max. temp 8 degrees C) on both sides with angle flange rings made of galvanized sheet steel. Porting pattern to DIN 24
55th Make: Helios CODE:
22
Type: STS 3
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