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detail intruduction:
[Parameter description of fuel flow meter]
  HQLL series fuel flow meter DN15-100mm
1. HQLL ordinary cast iron case, aluminum alloy oval gear, round head with pointer or square head without pointer.
2. HQLL-HL return-to-zero type cast iron shell, aluminum alloy oval gear, dual counters on the meter head, one of which can return to zero.
3. HQLL-TN high-temperature and high-viscosity type, applicable temperature 0~200℃, applicable medium viscosity 200~1000mpa·S.
4. HQLL-B stainless steel type All parts in contact with liquid, such as the shell and waist wheel, are made of stainless steel.
5. HQLLB signal output type A sensor is installed on the basis of the HQLL type, which can output pulse signals.
6. Technical parameters of fuel flow meter
(1) Nominal pressure: 0.4 0.6 1 1.6 2.5 (MPa)
(2) Medium temperature: -10～＋60 (℃)
(3) Degree of accuracy: 0.2 0.3 0.5 (level)
(4) Measured medium: gasoline, kerosene, light diesel oil, lubricating oil, etc.
(5) Viscosity of the measured medium: 0.6～150 (MPa·S)
(6) Flow rate range: (liquid viscosity 0.6 ~ 3 MPa·S, flow rate range is shown in the table below)
 
Fuel flow meter accuracy grade
Flow range (m3 /h)
Nominal diameter DN (mm) 0.5 grade 0.3 grade 0.2 grade
15 0.5-2.5 0.8-2.5 1-2.5
25 1.2-6 2-6 2.4-6
40 3.2-16 5.3-16 6.4-16
50 5-25 8.3-25 10-25
80 12-60 20-60 24-60
100 20-100 33.3-100 40-100
Turndown ratio 5 :1 3 :1