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Product Specs Descriptionpressure spectrum1. The device's pressure range during typical operation is 60 kPa to 130 kPa. 2. The pressure generated by the device won't break between 130 kPa and 400 kPa when the pipeline obstruction etc. happens in the device. Machine noiseNormal machine noise level: 65 dB (frequency-weighting characteristic A) continuous hours of labor When a device operates continuously for more than 4 hours at standard temperatures while using an AC power source, it should