RAY FS MT | HORIZONTAL

MEKANISK FLOWSENSOR
RAY FS MT | HORIZONTAL
heat Thermal Energy » Mekanisk Flowsensor |
| Datasheet

Application:

Volume measuring component for measuring heat for billing hot water consumption.

Features:

  • Multi-jet impeller meters designed to the latest technical standards with completely dry running operation and magnetic coupling
  • The roller counter is dustproof and condensation-proof and can be rotated for easier reading
  • For horizontal installation
  • The built-in pulse transmitter is cast in a waterproof enclosure and is easily replaceable
  • The pulse transmitter for volume measuring components is fitted with a 100 Ω, ¼ W protective resistor (cable length 3 m)
  • Facility for remote transmission of flow rates
  • The compact design in subassemblies simplifies maintenance and repair
  • Only the impeller operates in the wet chamber to prevent faults due to sediment
  • The meters are equipped with a sealed shield for protection against magnetic interference

General






* at PN 16
Thread Version
Medium temperature range °C 0 ... 120
Nominal pressure PN bar 16
Display range 0.05 l ... 100,000 m³
Pulse value l/pulse 1 / 10 / 100 / 1000 (other pulse rates on request)
Bearing Carbide or plastic
Approval National 22.16 / 80.07
Metrological class A•H
Protection class IP 65

Technical data






* at PN 16
Nominal diameter DN mm 15 15 20 20 20 25 25 40
Nominal flow rate Qn m³/h 1 1.5 1 1.5 2.5 3.5 6 10
Maximum flow rate (short-term) Qmax m³/h 2 3 2 3 5 7 12 20
Transition flow rate Qt l/h 80 120 80 120 200 280 480 800
Minimum flow rate Qmin l/h 25 30 25 30 50 65 90 160
Starting flow rate l/h 10 10 10 12 19 25 35 60
Flow rate at 0.1 bar pressure loss m³/h 0.6 1.0 0.6 1.0 1.6 2.2 3.8 6.3
Flow resistance coefficient Zeta 22.9 8.2 72.4 26.1 10.2 13.1 4.4 10.5

Dimensions






* at PN 16
Nominal diameter DN mm 15 15 20 20 20 25 25 40
Nominal flow rate Qn m³/h 1 1.5 1 1.5 2.5 3.5 6 10
Overall length L mm 165 165 190 190 190 260 260 300
Overall length with coupling L2 mm 245 245 288 288 288 378 378 438
Connection thread on meter Inch G¾B G¾B G1B G1B G1B G1¼B G1¼B G2B
Connection thread of coupling Inch R½ R½ R¾ R¾ R¾ R1 R1 R1½
Height H mm 32 32 32 32 32 45 45 55
Height H1 mm 138 138 138 138 138 150 150 155
Diameter Ø B mm 81 81 81 81 81 81 81 81
Weight without coupling kg 1.7 1.7 1.9 1.9 1.9 2.9 2.9 5.1
Weight with coupling kg 2.1 2.1 2.3 2.3 2.3 3.5 3.5 6.3

Note

When using the contact water meters as volume measuring component, we recommend that the meters are selected so that the pressure loss of 0.1 bar is not exceeded at maximum load.

Order the pulse output without resistor for a low-resistance load, e.g. mechanical roller counters.

Pressure loss graph / Typical error graph

Pressure loss graph
Pressure loss graph
Typical error graph
Typical error graph

General






* at PN 16
Flange Version
Medium temperature range °C 0 ... 120
Nominal pressure PN bar 16 or 40 (DN 15: PN 16 only)
Display range 0.05 l ... 100,000 m³
Pulse value l/pulse 1 / 10 / 100 / 1000 (other pulse rates on request)
Bearing Carbide or plastic
Approval National 22.16 / 80.07
Metrological class A•H
Protection class IP 65

Technical data






* at PN 16
Nominal diameter DN mm 15 15 20 20 20 25 25 40 50
Nominal flow rate Qn m³/h 1 1.5 1 1.5 2.5 3.5 6 10 15
Maximum flow rate (short-term) Qmax m³/h 2 3 2 3 5 7 12 20 30
Transition flow rate Qt l/h 80 120 80 120 200 280 480 800 1200
Minimum flow rate Qmin l/h 25 30 25 30 50 65 90 160 200
Starting flow rate l/h 10 10 10 12 19 25 35 60 90
Flow rate at 0.1 bar pressure loss m³/h 0.6 1.0 0.6 1.0 1.6 2.2 3.8 6.3 9.5
Flow resistance coefficient Zeta 22.9 8.2 72.4 26.1 10.2 13.1 4.4 10.5 11.3

Dimensions






* at PN 16
Nominal diameter DN mm 15 15 20 20 20 25 25 40 50
Nominal flow rate Qn m³/h 1 1.5 1 1.5 2.5 3.5 6 10 15
Overall length L mm 165 165 190 190 190 260 260 300 270
Flange diameter D mm 95 95 105 105 105 115 115 150 165
Hole circle diameter K mm 65 65 75 75 75 85 85 110 125
Number of screwholes pcs 4 4 4 4 4 4 4 4 4
Screwhole diameter D1 mm 14 14 14 14 14 14 14 18 18
Height H mm 50 50 50 50 50 50 52 70 83
Height H1 mm 138 138 138 138 138 140 140 155 180
Diameter Ø B mm 81 81 81 81 81 81 81 81 81
Weight kg 3.5* 3.5* 3.7* 3.7* 3.7* 5* 5* 8.6* 12.5*

Note

When using the contact water meters as volume measuring component, we recommend that the meters are selected so that the pressure loss of 0.1 bar is not exceeded at maximum load.

Order the pulse output without resistor for a low-resistance load, e.g. mechanical roller counters.

Pressure loss graph / Typical error graph

Pressure loss graph
Pressure loss graph
Typical error graph
Typical error graph
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