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Spiral wind flow mouth damper
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For the control of flow rates in constant volume systems For low velocity systems Mechanical systems-powered, without extemal power supply Suitable for supply or extract air Volume flow range maximum 10:1 Flow ratr adjustment using pointer on extemal scale The damper blade mechanisms maintenance free Operation temperature range 10℃ to 50℃ Selection according to nominal size of the duct system Low rate adjustment without special tools Differential pressure range 30 to 500 Pa |
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