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H250 M40 Variable Area Flowmeter

Part Number: H250 M40 Brand: Krohne
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The H250 all-metal variable area flowmeters cover the entire range of requirements of the process industry. 

The modular device design and flexible production structure form the basis for application and customer-based device versions. 

The basis of the H250 M40 is its purely mechanical design. 

Additional electronic modules can be added or replaced at any time without interrupting the process. This way, the functionality of the device adapts to any changed requirements.

From Analog flow measurement without auxiliary power up to digital integration into a fieldbus system. Simply screw off the cover, insert the module until it clicks, screw the cover back on and that's it. It is just as easy to replace the measuring scale in the event of a change in application.
Features
  • Simple, low-cost installation: measurement and indication without auxiliary power supply
  • Universal Ex concept: Ex i and Ex d
  • Modular scalability - from mechanical to fieldbus
  • Any installation position: vertical upward, horizontal, vertical downward
  • Robust measuring tube construction for high process temperatures and extreme operating pressures
  • Choice of material: stainless steel, Hastelloy®, titanium, Monel, PTFE/TFM etc
  • Many connection variants: flanged, screwed, clamped, weld-on ends etc
  • Extended measuring span: up to 100:1
  • High application safety, even with extremely low flows
The H250 all-metal variable area flowmeters cover the entire range of requirements of the process industry. 

The modular device design and flexible production structure form the basis for application and customer-based device versions. 

The basis of the H250 M40 is its purely mechanical design. 

Additional electronic modules can be added or replaced at any time without interrupting the process. This way, the functionality of the device adapts to any changed requirements.

From Analog flow measurement without auxiliary power up to digital integration into a fieldbus system. Simply screw off the cover, insert the module until it clicks, screw the cover back on and that's it. It is just as easy to replace the measuring scale in the event of a change in application.
Features
  • Simple, low-cost installation: measurement and indication without auxiliary power supply
  • Universal Ex concept: Ex i and Ex d
  • Modular scalability - from mechanical to fieldbus
  • Any installation position: vertical upward, horizontal, vertical downward
  • Robust measuring tube construction for high process temperatures and extreme operating pressures
  • Choice of material: stainless steel, Hastelloy®, titanium, Monel, PTFE/TFM etc
  • Many connection variants: flanged, screwed, clamped, weld-on ends etc
  • Extended measuring span: up to 100:1
  • High application safety, even with extremely low flows
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Specifications

Brand

Approvals & Certifications

  • EHEDG
  • SIL 2 Certification

Approvals & Certifications

  • ATEX II2 GD IIC, II3 GD IIC, II2 G Ex ia IIC T6 Gb, II2 G Ex d IIC T6 Gb, II3 G Ex NA IIC T6 Gc, II2D Ex T IIIC T70° C Db, II2D Ex ia IIIC T85° C Db
  • CCOE Ex ia, Ex d
  • EAC Ex ia, Ex d
  • FM (C,US) IS Class I, Div. 1, XP Class I, Div. 1, NI Class I, Div. 2, DIP Class II/III, Div. 1,
  • GOST Ex ia, Ex d
  • IECEx II2 GD IIC, II3 GD IIC, II2 G Ex ia IIC T6 Gb, II2 G Ex d IIC T6 Gb, II3 G Ex NA IIC T6 Gc, II2D Ex T IIIC T70° C Db, II2D Ex ia IIIC T85° C Db
  • INMETRO Ex ia, Ex d, Ex NA, Ex T
  • KGS Ex ia, Ex d, Ex NA, Ex T
  • NEC (500, 505)
  • NEPSI Ex ia, Ex d, Ex NA, Ex T
  • PESO Ex ia, Ex d

BSP Connection

  • G 1” Female - ISO 228
  • G 1/2” Female - ISO 228
  • G 1-1/2” Female - ISO 228
  • G 1-1/4” Female - ISO 228
  • G 2” Female - ISO 228
  • G 3/4” Female - ISO 228

Enclosure, Body Material

  • Aluminum
  • Stainless Steel

Environmental Protection

  • IP66 According to EN 60529 - M40, M40S, M40R
  • IP67
  • IP68 According to EN 60529 - M40, M40S, M40R
  • IP69K According to DIN 40050-9 - M40R
  • NEMA 4 According to NEMA 250 - M40, M40S, M40R
  • NEMA 4X According to NEMA 250 - M40, M40S, M40R
  • NEMA 6 According to NEMA 250 - M40, M40S, M40R

Flange Material

  • 316L Stainless Steel CrNi (1.4404/1.4435) - H250/RR & H250/F-Food
  • CrNi 316Ti Stainless Steel CrNi (1.4571) with TFM/PTFE - for H250/C-Ceramic/PTFE
  • Hastelloy C-4 (2.4610) Solid or-Plated - H250/HC

Flange Size - 1” (DN 25)

  • 1” (DN 25) - 150# ASME B16.5
  • 1” (DN 25) - 1500# ASME B16.5
  • 1” (DN 25) - 2500# ASME B16.5
  • 1” (DN 25) - 300# ASME B16.5
  • 1” (DN 25) - 600# ASME B16.5
  • 1” (DN 25) - 900# ASME B16.5
  • 1” (DN 25) - JIS 10K (JIS B 2220)
  • 1” (DN 25) - JIS 20K (JIS B 2220)
  • 1” (DN 25) - PN 100 (EN 1092-1)
  • 1” (DN 25) - PN 150 (EN 1092-1)
  • 1” (DN 25) - PN 16 (EN 1092-1)
  • 1” (DN 25) - PN 25 (EN 1092-1)
  • 1” (DN 25) - PN 250 (EN 1092-1)
  • 1” (DN 25) - PN 40 (EN 1092-1 & DIN 11864-2)
  • 1” (DN 25) - PN 50 (EN 1092-1)
  • 1” (DN 25) - PN 64 (EN 1092-1)

Flange Size - 1/2” (DN 15)

  • 1/2” (DN 15) - 150# ASME B16.5
  • 1/2” (DN 15) - 1500# ASME B16.5
  • 1/2” (DN 15) - 2500# ASME B16.5
  • 1/2” (DN 15) - 300# ASME B16.5
  • 1/2” (DN 15) - 600# ASME B16.5
  • 1/2” (DN 15) - 900# ASME B16.5
  • 1/2” (DN 15) - JIS 10K (JIS B 2220)
  • 1/2” (DN 15) - JIS 20K (JIS B 2220)
  • 1/2” (DN 15) - PN 100 (EN 1092-1)
  • 1/2” (DN 15) - PN 150 (EN 1092-1)
  • 1/2” (DN 15) - PN 16 (EN 1092-1)
  • 1/2” (DN 15) - PN 25 (EN 1092-1)
  • 1/2” (DN 15) - PN 250 (EN 1092-1)
  • 1/2” (DN 15) - PN 40 (EN 1092-1 & DIN 11864-2)
  • 1/2” (DN 15) - PN 50 (EN 1092-1)
  • 1/2” (DN 15) - PN 64 (EN 1092-1)

Flange Size - 2” (DN 50)

  • 2” (DN 50) - 150# ASME B16.5
  • 2” (DN 50) - 1500# ASME B16.5
  • 2” (DN 50) - 2500# ASME B16.5
  • 2” (DN 50) - 300# ASME B16.5
  • 2” (DN 50) - 600# ASME B16.5
  • 2” (DN 50) - 900# ASME B16.5
  • 2” (DN 50) - JIS 10K (JIS B 2220)
  • 2” (DN 50) - JIS 20K (JIS B 2220)
  • 2” (DN 50) - PN 100 (EN 1092-1)
  • 2” (DN 50) - PN 150 (EN 1092-1)
  • 2” (DN 50) - PN 16 (EN 1092-1)
  • 2” (DN 50) - PN 25 (EN 1092-1)
  • 2” (DN 50) - PN 250 (EN 1092-1)
  • 2” (DN 50) - PN 40 (EN 1092-1 & DIN 11864-2)
  • 2” (DN 50) - PN 50 (EN 1092-1)
  • 2” (DN 50) - PN 64 (EN 1092-1)

Flange Size - 3” (DN 80)

  • 3” (DN 80) - 150# ASME B16.5
  • 3” (DN 80) - 1500# ASME B16.5
  • 3” (DN 80) - 2500# ASME B16.5
  • 3” (DN 80) - 300# ASME B16.5
  • 3” (DN 80) - 600# ASME B16.5
  • 3” (DN 80) - 900# ASME B16.5
  • 3” (DN 80) - JIS 10K (JIS B 2220)
  • 3” (DN 80) - JIS 20K (JIS B 2220)
  • 3” (DN 80) - PN 100 (EN 1092-1)
  • 3” (DN 80) - PN 150 (EN 1092-1)
  • 3” (DN 80) - PN 16 (EN 1092-1 & DIN 11864-2)
  • 3” (DN 80) - PN 25 (EN 1092-1)
  • 3” (DN 80) - PN 250 (EN 1092-1)
  • 3” (DN 80) - PN 40 (EN 1092-1)
  • 3” (DN 80) - PN 50 (EN 1092-1)
  • 3” (DN 80) - PN 64 (EN 1092-1)

Flange Size - 4” (DN 100)

  • 4” (DN 100) - 150# ASME B16.5
  • 4” (DN 100) - 1500# ASME B16.5
  • 4” (DN 100) - 2500# ASME B16.5
  • 4” (DN 100) - 300# ASME B16.5
  • 4” (DN 100) - 600# ASME B16.5
  • 4” (DN 100) - 900# ASME B16.5
  • 4” (DN 100) - JIS 10K (JIS B 2220)
  • 4” (DN 100) - JIS 20K (JIS B 2220)
  • 4” (DN 100) - PN 100 (EN 1092-1)
  • 4” (DN 100) - PN 150 (EN 1092-1)
  • 4” (DN 100) - PN 16 (EN 1092-1 & DIN 11864-2)
  • 4” (DN 100) - PN 25 (EN 1092-1)
  • 4” (DN 100) - PN 250 (EN 1092-1)
  • 4” (DN 100) - PN 40 (EN 1092-1)
  • 4” (DN 100) - PN 50 (EN 1092-1)
  • 4” (DN 100) - PN 64 (EN 1092-1)

Flange Size - 5” (DN 125)

  • 5” (DN 125) - 150# ASME B16.5
  • 5” (DN 125) - 1500# ASME B16.5
  • 5” (DN 125) - 2500# ASME B16.5
  • 5” (DN 125) - 300# ASME B16.5
  • 5” (DN 125) - 600# ASME B16.5
  • 5” (DN 125) - 900# ASME B16.5
  • 5” (DN 125) - PN 100 (EN 1092-1)
  • 5” (DN 125) - PN 150 (EN 1092-1)
  • 5” (DN 125) - PN 16 (EN 1092-1)
  • 5” (DN 125) - PN 25 (EN 1092-1)
  • 5” (DN 125) - PN 250 (EN 1092-1)
  • 5” (DN 125) - PN 40 (EN 1092-1)
  • 5” (DN 125) - PN 50 (EN 1092-1)
  • 5” (DN 125) - PN 64 (EN 1092-1)

Flange Size - 6” (DN 150)

  • 6” (DN 150) - 150# ASME B16.5
  • 6” (DN 150) - 1500# ASME B16.5
  • 6” (DN 150) - 2500# ASME B16.5
  • 6” (DN 150) - 300# ASME B16.5
  • 6” (DN 150) - 600# ASME B16.5
  • 6” (DN 150) - 900# ASME B16.5
  • 6” (DN 150) - PN 100 (EN 1092-1)
  • 6” (DN 150) - PN 150 (EN 1092-1)
  • 6” (DN 150) - PN 16 (EN 1092-1)
  • 6” (DN 150) - PN 25 (EN 1092-1)
  • 6” (DN 150) - PN 250 (EN 1092-1)
  • 6” (DN 150) - PN 40 (EN 1092-1)
  • 6” (DN 150) - PN 50 (EN 1092-1)
  • 6” (DN 150) - PN 64 (EN 1092-1)

Flange Type

  • Raised Face (RF)

Gasket Material

  • FFKM
  • FPM

Media

  • Liquids

NACE & NIST

  • NACE MR-0175

NPT Connection

  • 1” NPT Female - ASME B1.20.1
  • 1/2” NPT Female - ASME B1.20.1
  • 1-1/2” NPT Female - ASME B1.20.1
  • 1-1/4” NPT Female - ASME B1.20.1
  • 2” NPT Female - ASME B1.20.1
  • 3/4” NPT Female - ASME B1.20.1

O-Ring Material

  • FKM
  • FPM

Output

  • 4-20 mA, 2-Wire

Pressure Range

  • barg: 0 to 900
  • kPa: 0 to 90,000
  • psig: 0 to 13,000

Pressure Type

  • Gauge

Tri-Clamp Connection

  • DN 100 Tri-Clamp - DIN 32676
  • DN 101.6 Tri-Clamp - ISO 2852
  • DN 114.3 Tri-Clamp - ISO 2852
  • DN 139.7 Tri-Clamp - ISO 2852
  • DN 15 Tri-Clamp - DIN 32676
  • DN 25 Tri-Clamp - DIN 32676 & ISO 2852
  • DN 38 Tri-Clamp - ISO 2852
  • DN 40 Tri-Clamp - DIN 32676
  • DN 50 Tri-Clamp - DIN 32676 & ISO 2852
  • DN 63.5 Tri-Clamp - ISO 2852
  • DN 65 Tri-Clamp - DIN 32676
  • DN 76.1 Tri-Clamp - ISO 2852
  • DN 80 Tri-Clamp - DIN 32676

Tube Connection

  • DN 100 Tube Fitting - Ermeto
  • DN 15 Tube Fitting - Ermeto
  • DN 25 Tube Fitting - Ermeto
  • DN 50 Tube Fitting - Ermeto
  • DN 80 Tube Fitting - Ermeto
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