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Pressure relief valve

Designed to prevent overinflating in inflatables. The valve can be left open at all times, or it can be closed and then opened for recurring checks. Hole in the fabric: 37-mm diameter.

CodeCalibration - OpeningCalibration - Closing
66.446.68250 mbar230 mbar
66.446.69300 mbar270 mbar
66.446.70350 mbar310 mbar