KEY INSTRUMENTS FR4L52BVBN FLOW METER Model# FR4000 100-600 CCM 5P341 New Series FR4000 is a standard precision-machined acrylic flow meter for liquids or gases, has direct reading air and water scales and is available in either English or Metric scales. The FR4000 flow meters can be configured with a control valve on the inlet or no valve at all; fittings and valve can be specified in either brass or stainless steel; O-rings can provided with
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