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<b>Main technical requirements</b></br> ● Maximum working pressure :4.5Mpa</br> ● Operating temperature range: -20℃ ~ 150℃</br> ● Applicable refrigerants and freezing oil: R290, R717, R600a, mineral freezing oil (MO), polyol ester synthetic freezing oil (POE), alkyl benzene synthetic freezing oil (AB).</br> Purpose: Installed in the oil separator return port or screw compressor oil pipe to observe the return oil flow.
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