Flowmeter temperature -30 ℃ ~ + 60 ℃, medium temperature -20 ℃ ~ + 80 ℃. When the flow meter, medium pusher impeller rotates, friction heat generated by the mechanical parts are constantly away the medium, the temperature close to the temperature of the meter body of the medium. At maximum working flow rate, measuring the surface temperature of the flowmeter, is less than 0.8 times T4 (104 ℃).
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