... 2.Principle: Low voltage, multi-pulse E7100 Intelligent Electromagnetic Sea Water Flow Meter Specificationsultrasonic flowmeter stationary ultrasonic wave flowmeter quick response high qualityStationary ... lengthen to 400 metersPipe conditionPipe materialsSteel, stainless steel, cast iron, current pipe, copper, PVC, aluminum, glass steelIntern diameter20mm-6000mm.Straight pipelineUpstream ...