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VA40/VA45 Variable Area Flowmeter

Part Number: VA40/VA45 Brand: Krohne
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The VA40 flowmeter is suitable for measuring the flow rate of liquids or gases. 

The VA45 flowmeter is suitable for measuring gases at low operating pressures.
Features
  • Consistently used overall length concept
  • Low loss of pressure for gas applications
  • Low maintenance
  • Optional limit switches
  • Simple installation and start-up
  • Simple float guidance
  • Shatter protection
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The VA40 flowmeter is suitable for measuring the flow rate of liquids or gases. 

The VA45 flowmeter is suitable for measuring gases at low operating pressures.
Features
  • Consistently used overall length concept
  • Low loss of pressure for gas applications
  • Low maintenance
  • Optional limit switches
  • Simple installation and start-up
  • Simple float guidance
  • Shatter protection

Specifications

Brand

Accuracy

  • VA40: 1 % According to VDI/VDE Directive 3513
  • VA45: 2.5 % According to VDI/VDE Directive 3513

Ambient Temperature Range

  • -25° to 100° C (-13° to 212° F) - Max.

Applications

  • Burner Controlling
  • Measuring Gas
  • Water Circuits

Approvals & Certifications

  • ATEX Ex
  • FDA
  • NAMUR
  • PED 97/23/EC

Approvals & Certifications

  • EN 529

BSP Connection

  • G 1” Female
  • G 1/2” Female
  • G 1-1/2” Female
  • G 2” Female
  • G 3/4” Female
  • G 3/8” Female

Cap Material

  • Optional Screw Cap: Stainless Steel
  • Screw Cap: Aluminum / Powder-Coated

Cone Material

  • Measuring Cone: Borosilicate Glass

Consumption

  • Current: 1 mA (Ring Typical Limit Switches - Passage, Sphere is in Limit Switch) & (TG21 - Active)
  • Current: 3 mA (Ring Typical Limit Switches - Passage, Sphere is in Limit Switch) & (TG21 - Inactive)

Current

  • No-load Current (RB15-14-E2): 20 mA
  • Operating Current (RB15-14-E2): 0 to 100 mA

Electrical Connectors

  • I7R2010-NL, I7R2015-NL, I7R2010-N, I7R2015-N, RC10-14-N3, RC15-14-N3, RC10-14-N0, RC15-14-N0: 2-Wire
  • RB15-14-E2: 3-Wire

Electrical Contacts

  • MS14: Normally Closed or Normally Open

Electrical Rating

  • MS14: 0.5 A at 30 Vdc / 12 VA, Max.

Enclosure Finish

  • Electro-Polishing

Enclosure, Body Material

  • 304 Stainless Steel 1.4301

Environmental Protection

  • Hazardous Area
  • IP44
  • IP67
  • NEMA 6

Flange Material

  • 316L Stainless Steel, 1.4404

Flange Size - 1-1/2” (DN 40)

  • Unrated

Flange Size - 1” (DN 25)

  • Unrated

Flange Size - 1/2” (DN 15)

  • Unrated

Flange Size - 2” (DN 50)

  • Unrated

Flow Rate

  • Limit Switch MS14: 1.3 to 10,000 L/hr for Water
  • Limit Switch MS14: 50 to 310,000 L/hr for Air
  • Limit Switch TG21: 23 to 10,000 L/hr for Water
  • Ring Limit Switch: 0.16 to 25 L/hr for Water
  • Ring Limit Switch: 6 to 800 L/hr
  • TG21 Measuring Range Air: 700 to 310,000 L/hr
  • VA45: 55.8 to 2,790 scfh (1,500 to 75,000 L/hr) for Air

Function

  • Switching Function (I7R2010-N, RC10-14-N0, I7R2015-N, RC15-14-N0): Monostable
  • Switching Function (I7R2010-NL, RC10-14-N3, I7R2015-NL, RC15-14-N3, RB15-14-E2): Bistable

Materials of Construction

  • Float VA40 (Also for Use with Food): 316Ti Stainless Steel 1.4571
  • Float VA40 (Also for Use with Food): Hastelloy C-2000
  • Float VA40 (Also for Use with Food): PTFE/Insert
  • Float VA40 (Not for Use with Food), VA45: Aluminum
  • Float VA40 (Not for Use with Food): Polypropylene (PP)
  • Float VA40 (Not for Use with Food): TFM (PTFE)
  • Threaded Connection, Tube Nozzle: 316L Stainless Steel, 1.4404
  • Threaded Connection / Tube Nozzle, Float & Insert: PVDF
  • Threaded Connection: Chromatized Steel
  • Threaded Connection: Galvanized Steel
  • Threaded Connection: Steel

Media

  • Gases
  • Liquids
  • Vapours
  • Water

NPT Connection

  • 1” NPT Female
  • 1/4” NPT Female
  • 1-1/2” NPT Female
  • 2” NPT Female

Operating Temperature

  • -20° to 100° C (-4° to 212° F) - Max.

Operating Voltages

  • RB15-14-E2: 10-30 Vdc

Output

  • RB15-14-E2: ≤ 1 Vdc

Pipe Connection

  • 1” Pipe (DN 25)
  • 1/2” Pipe (DN 15)
  • 1-1/2” Pipe (DN 40)
  • 2” Pipe (DN 50)

Pressure Range

  • bar: 0 to 10
  • kPa: 0 to 1,000
  • psi: 0 to 145

Principle of Operation

  • Float Measuring Principle

Ratio

  • Measuring Span: 10:1

Repeatability

  • Switching Reproducibility (MS14): < 2 % of the Measurement Range End Value

Seat / Seal Material

  • Seal: EPDM
  • Seal: FPM
  • Seal: NBR

Tri-Clamp Connection

  • DN 17.2 Sanitary Clamp - ISO 2852
  • DN 25 Sanitary Clamp - ISO 2852
  • DN 40 Sanitary Clamp - ISO 2852
  • DN 51 Sanitary Clamp - ISO 2852