VC Kracht Gear Flow Meter

Kracht PD Flow Meter

Positive Displacement Flow Meters

VC Kracht Gear Flow Meter

Gear Flow Meter

  • The measuring gears are driven by the liquid flow on the principle of a gear motor.
  • The gears run without contact in the measuring chamber.
  • The bearing elements are a low-friction ball or plain bearings.
  • The movement of the gears is sampled without contact by means of two sensors located in the cover.
  • Between the sensor compartment and measuring chamber is located a pressure-resistant, non-magnetic separator plate.
  • When the measuring mechanism rotates by one tooth pitch, the sensor emits a signal which corresponds to the geometrical tooth volume V gz.
  • The signal is converted into a square-wave signal by the preamplifier.
  • The two-channel sampling permits better resolution as well as recognition of the flow direction.

Construction

1 Housing2 Cover3 Gear4 Preamplifier5 Connector6 Sensor7 Bearing assembly

Specification

Measuring range 0.008 … 700 l/min
0.002… 185 gal/min
Measuring the ratio 1: 300
Operating pressure … 400 bar
… 5802 psi

Series Selection/Summary of Variants

Series 1 2 3 4 5 6 7 8
Material Housing Spheroidal cast iron
EN-GJS-400-15
(/79 EN-GJS-600-3)
Spheroidal cast iron
EN-GJS-400-15
Spheroidal cast iron
EN-GJS-400-15
Spheroidal cast iron
EN-GJS-400-15
stainless steel
1.4404
stainless steel
1.4404
Spheroidal cast iron
EN-GJS-400-15
stainless steel
1.4404
Material gears steel
1.7139
steel
1.7139
steel
1.7139
steel
1.7139
stainless steel
1.4462
stainless steel
1.4462
steel
1.7139
stainless steel
1.4462
Bearing ball bearings ball bearings bronze- plain bearings carbide plain bearings carbide plain bearings stainless steel plain bearings hybrid plain bearings hybrid plain bearings
Connection P P P P P/R P/R P P
Max. perm. foreign particle size in the medium (μm) 20 30 50 30 30 20 20 20
Accuracy (from measuring value) ± 0.3 % at 20 cSt ± 0.5 % at 50 cSt ± 1 % at 100 cSt ± 0.5 % at 100 cSt ± 0.5 % at 100 cSt ± 0.3 % at 20 cSt ± 1 % at 20 cSt ± 1 % at 20 cSt
Nominal Size Starting point at
l/min
gal./min
Measuring range
l/min
gal./min
0.025 0.001
0.0003
0.008-2
0.002-0.53
0.02-2*
0.005-0.53*
0.008-2
0.002-0.53
0.008-2
0.002-0.53
0.008-2
0.002-0.53
0.04 0.004
0.001
0.02-4
0.005-1.06
0.02-4
0.005-1.06
0.02-4
0.005-1.06
0.02-4
0.005-1.06
0.1 0.008
0.002
0.04-8
0.01-2.1
0.04-8
0.01-2.1
0.04-8
0.01-2.1
0.04-8
0.01-2.1
0.04-8
0.01-2.1
0.2 0.010
0.003
0.16-16
0.04-4.2
0.16-16
0.04-4.2
0.16-16
0.04-4.2
0.16-16
0.04-4.2
0.16-16
0.04-4.2
0.16-16
0.04-4.2
0.16-16
0.04-4.2
0.4 0.01
0.003
0.2-40
0.05-10.6
0.2-30
0.05-8
 
1 0.02
0.05
0.4-80
0.1-21
0.4-80
0.1-21
0.6-40
0.15-10.6
0.3-60
0.08-16
0.3-60
0.08-16
0.4-80
0.1-21
0.4-80
0.1-21
0.4-80
0.1-21
3 0.03
0.008
0.6-160
0.16-42
0.6-160
0.16-42
0.6-100
0.16-26
0.6-100
0.16-26
0.6-160
0.16-42
5 0.04
0.01
1-250
0.26-66
1-250
0.26-66
1.2-80
0.32-21
1-160
0.26-42
1-160
0.26-42
1-250
0.26-66
12 0.03
0.008
2-600
0.53-159
16 0.03
0.008
3-700
0.79-185

More information: Brochure Kracht VC

  Another Article:The Technology of Ultrasonic FlowmeterWorking Principle of Flow MeterHow to Choose a Flow MeterModels and Types of Flow MeterSound Velocity of MaterialPrinciple Working of Coriolis Mass Flow Meter

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