Single Jet Meters (LXSG-13D4b~20D4b)

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 capacityLong working lifeLow pressure lossAll 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≤1MpaMAXIMUM 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/QQ4=1.25Q3  Q3R=Q3/Q1Q2=1.6Q1  Q1R=Q3/Q1Q2=1.6Q1  Q1              l/h              l/h          l/h  15      31252500        80        50  31.25    100      40  25  20      50004000        80        80  50    100      64  40 Nominal size DN (mm)Class of measurementOverload 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 weightTypeSize (mm)Length (mm) LWidth (mm) WHeight (mm) HConnecting Thread DWeight(kg)LXSG(R)-13D4    15110/115      77      80      G 3/4"B  0.78LXSG(R)-20D4    20110/115/130      80      80      G 1"B  0.98