... constant flow3. Low maintenance, no metaltometal contact in measuring chamber, Long life service4. Low pressure loss, ... strainer M-50-KXP-1Electronic meter with electronic computer,solenoid valve,strainer and air eliminator ... 80-KPX-1,M-100-KPX-1Electronic meter with electronic computer,solenoid valve,strainer and air eliminatorConstruction: ( ... Meter/Diesel Gas Petroleum Flowmeter/Measuring Instrument