Ultrasonic volume measuring device

ULTRAFLOW® 54

Ultraschall Waermezaehler Volumenmessteile statisch Ultraflow54

Product categories

Heat / Cooling

Durable, wear-free ultrasonic volume measuring device. Particularly suitable for district heating/cooling applications (main meters, transfer stations, etc.) in billing transactions.

Heat / Cooling

Ultrasonic

Smart City

Smart Building

Your benefits

  • Durable, wear-free ultrasonic volume measuring device:
    High measurement stability and operational reliability
  • Compact design:
    Requires little installation space on site
  • High resolution of pulse values:
    Precise instantaneous values
  • CH refrigeration certification (METAS) incl. initial calibration:
    Approved for use in commercial transactions

Applications

  • Particularly suitable for district heating/cooling applications (main meters, transfer stations, etc.) in billing transactions
  • Replacement of mechanical impeller heat meters
  • Heat and/or cooling consumption measurement in building services engineering
  • Can only be used with MULTICAL® series calculators

Options

  • Pulse transmitter with its own power supply for cable lengths >10 m
Ultraschall Waermezaehler Volumenmessteile statisch Ultraflow54

Properties

  • Nominal diameters:
    Heating: DN 20 to DN 300
    Combined heating/cooling: DN 150 to DN 300
    Cooling: DN 150 to DN 300
  • Nominal flow rates:
    Heat: qp 1.5 to qp 1000
    Heat/cooling combined: qp 150 to qp 1000
    Cooling: qp 150 to qp 1000
  • Low pressure loss
  • No moving parts
  • Signal transmission to the computing unit and power supply to the volume measuring device via a 3-wire cable
  • Medium temperature:
    Heat: 15 to 130 °C
    Heat/cooling combined: 2 to 130 °C
    Cooling: 2 to 130 °C
    From 90 °C, a flange meter, wall mounting of the electronic unit of the volume measuring part from DN 150, and relocation of the calculator are recommended.
  • Type approval/certification:
    - Heat: Compliance with European Measuring Instruments Directive (MID)
    - Cold: Swiss certification (METAS) including initial calibration

Product information

Technical data ULTRAFLOW® 54 (DN 20-65)
Series ULTRAFLOW® 54
Nominal diameter DN mm 20 20 25 25 25 25 32 40 40 50 65
Nominal flow rate qp p m3 /h 1.5 2.5 3.5 3.5 6 6 6 10 10 15 25
Nominal pressure PN bar - - 16 - 16 - - 16 - - -
Nominal pressure with flanges PN bar 25 25 - 25 - 25 25 - 25 25 25
Connection thread with meter G…B Zoll - - - - - 2 - - -
Maximum flow rate qs m3 /h 3 5 7 7 12 12 12 20 20 30 50
Minimum flow rate +/- 5% qi l/h 15 25 35 35 60 60 60 100 100 150 250
Kvs value m3 /h 3.2 13.4 13.4 13.4 13.4 13.4 13.4 40 40 40 102
Start-up value l/h 3 5 7 7 12 12 12 20 20 30 50
Temperature max. °C 130 130 130 130 130 130 130 130 130 130 130
Standard measuring range qi/qp 1:100 1:100 1:100 1:100 1:100 1:100 1:100 1:100 1:100 1:100 1:100
Dimensions and weights
Length without screw connection A mm - - 260 - 260 - - 300 - - -
Total height B mm - - 80 - 80 - - 96 - - -
Height from center of pipe C mm - - 58 - 58 - - 65 - - -
Width D mm - - 55 - 55 - - 55 - - -
Length with PN 25/16 flanges A mm 190 190 - 260 - 260 260 - 300 270 300
Height with flanges E mm 95 95 - 106 - 106 128 - 136 145 168
Flange outer diameter 1) H mm 105 105 - 115 - 115 140 - 150 165 185
Bolt circle diameter 1) K mm 75 75 - 85 - 85 100 - 110 125 145
Number of screws 1) pcs 4 4 - 4 - 4 4 - 4 4 8
Weight without screw connection approx. kg - - 2,3 - 2,3 - - 4,5 - - -
Weight with flanges approx. kg 2,9 2,9 5,0 - 5,0 5,2 - 8,3 10,1 13,2

1) DIN EN 1092

Technical data ULTRAFLOW® 54 (DN 80-300)
Series ULTRAFLOW® 54
Nominal diameter DN mm 80 100 100 125 150 150 150 200 200 250 250 250 300
Nominal flow rate qp m3/h 40 60 100 100 150 250 400 400 600 400 600 1000 1000
Nominal pressure PN bar - - - - - - - - - - - - -
Nominal pressure with flanges PN bar 25 25 25 25 25 25 25 25 25 25 25 25 16
Connection thread with meter G…B Zoll - - - - - - - - - - - - -
Maximum flow rate qs m3/h 80 120 200 200 300 500 800 800 1200 800 1200 2000 2000
Minimum flow rate +/- 5% qi l/h 400 600 1000 1000 1500 2500 4000 4000 6000 4000 6000 10000 10000
Kvs value m3/h 179 373 373 373 1060 1060 2000 4040 4040 4040 4040 8160 8160
Start-up value l/h 80 120 200 200 300 500 800 800 1200 800 1200 2000 2000
Temperature max. °C 130 130 130 130 130 130 130 130 130 130 130 130 130
Standard measuring range qi/qp 1:100 1:100 1:100 1:100 1:100 1:100 1:100 1:100 1:100 1:100 1:100 1:100 1:100
Dimensions and weights
Length without screw connection A mm - - - - - - - - - - - - -
Total height B mm - - - - - - - - - - - - -
Height from center of pipe C mm - - - - - - - - - - - - -
Width D mm - - - - - - - - - - - - -
Length with PN 25 flanges A mm 300 360 360 350 500 500 500 500 500 600 600 600 500
Height with flanges E mm 184 220 220 260 300 300 300 360 360 425 425 425 460
Flange outer diameter 1) H mm 200 235 235 270 300 300 300 360 360 425 425 425 460
Bolt circle diameter 1) k mm 160 190 190 220 250 250 250 310 310 370 370 370 410
Number of screws 1) Stk. 8 8 8 8 8 8 8 12 12 12 12 12 12
Weight without screw connection ca. kg - - - - - - - - - - - - -
Weight with flanges ca. kg 16,8 21,7 21,7 28,2 37 37 36 49 49 79 79 75 76

1) DIN EN 1092

Dimension Diagram
ULTRAFLOW 54 E Pe80105 2
ULTRAFLOW 54 E Pe80105 3
Pressure drop curve
ULTRAFLOW 54 E Pe80105 4
Installation positions
Pipe: horizontal iconHorizontalLine
vertical iconVerticalLine
inclined iconDiagonal
Head of the meter ULTRAFLOW® 54: to the side iconArrowLeftRight
DN 20 – DN 125 ± 45° iconPlusMinus45Degrees
ULTRAFLOW® 54: to the side iconArrowLeftRight
DN 150 – DN 300
Electrical connections
ULTRAFLOW® 54 MULTICAL®
Blue (Masse) / 11 A 11
Red (Supply) / 9 A 9
Yellow (Signal) / 10 A 10
Installation note

For ULTRAFLOW® 54 ≤DN 125 (100 m³/h), the black electronics housing must be installed on the side (for horizontal installation). ULTRAFLOW® 54 can be rotated up to ± 45° in relation to the pipe axis. ULTRAFLOW® 54 does not require a straight inlet or outlet section. ULTRAFLOW® 54 must not be exposed to pressure lower than the ambient pressure (vacuum).

For ULTRAFLOW® 54 DN 150 (150 m3/h), it is recommended that the black electronics housing be installed on the side (for horizontal installation) in order to better measure any layer flows. However, ULTRAFLOW® 54 may also be rotated up to ±90° in relation to the pipe axis. ULTRAFLOW® 54 does not require a straight inlet or outlet section. ULTRAFLOW® 54 must not be exposed to pressure lower than the ambient pressure (vacuum).

Minimum recommended distances Ultrasonic volume measuring device DN 20 - 80 Ultrasonic volume measuring device DN 100 - 300
If valves are not fully open 20 x DN 40 x DN
On the pressure side of pumps 20 x DN 20 x DN
For multiple arches 5 x DN 5 x D
Materials

Parts in contact with medium
 

ULTRAFLOW® 54 qp 1.5

Housing with flange connection: Stainless steel, W. No. 1.4308

Sensor: Stainless steel, W. No. 1.4401

Seals: EPDM

Reflector: Thermoplastic, PES 30% GF and stainless steel, W. No. 1.4301

Measuring tube: Thermoplastic, PES 30% GF

 

ULTRAFLOW® 54 qp 2.5 to qp 100

Housing with threaded connection: Dezincification-resistant brass

Housing with flange connection: Stainless steel, W. No. 1.4308

Sensor: Stainless steel, W. No. 1.4401

Seals: EPDM

Reflector: Stainless steel, W. No. 1.4301

Measuring tube: Thermoplastic, PES 30% GF

 

ULTRAFLOW® 54 qp 150 to qp 1000

Housing with flange connection: Stainless steel, W. No. 1.4307

Electronics housing

Base: Thermoplastic, PBT 30% GF

Cover: Thermoplastic, PC 10% GF Connection cable: Silicone (3x0.5 mm2 )
 

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Last updated: 13.02.2026
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