Product Description
DEFINITION: Set of moving device that fitted into a closed conduit driven directly by water flow. Its turbine rotor rotates about the axis which is perpendicular to water flow. WORKING PRINCIPLES: Water flow drives vane rotate. Rotating times which is proportional to water flow speed are gathered, hence total volume passed through water meter is recorded. CHARACTERS: Types: Wet, dry, vertical, liquid sealed. Wide measuring range, high accuracy. Stable measuring capacity Long working life Low pressure loss All technical figures are conformed with GB/T778. 1~3-1996 which is equivalent to ISO4064 Standard Class B. WORKING CONDITION: Water temperature≤45ºC(Hot water meter≤90ºC) Water pressure≤1Mpa MAXIMUM PERMISSIBLE ERROR: From the minimum flow-rate (qmin) inclusive to the lower zone of the transitionalflow-rate (qt) exclusive: ±5%. From the transitional flow-rate (qt) inclusive to the higher zone of the maximum flow-rate (qmax) exclusive: ±2%(hot water meter±3%. ) DN/Q Q4=1.25Q3 Q3 R=Q3/Q1 Q2=1.6Q1 Q1 R=Q3/Q1 Q2=1.6Q1 Q1 l/h l/h l/h 15 3125 2500 80 50 31.25 100 40 25 20 5000 4000 80 80 50 100 64 40 Nominal size DN (mm) Class of measurement Overload flow-rate q s (m 3 /h) Permanent flow-rate q p (m 3 /h) Transitional flow-rate q t (l/h) Minimum flow-rate q min (l/h) 15 B 3 1.5 120 30 20 B 3 1.5 200 50 Overall dimensions and weight Type Size (mm) Length (mm) L Width (mm) W Height (mm) H Connecting Thread D Weight(kg) LXSG(R)-13D4 15 110/115 77 80 G 3/4"B 0.78 LXSG(R)-20D4 20 110/115/130 80 80 G 1"B 0.98
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