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DFM Variable Area Gas Flow Meters
DFM Variable Area gas flowmeters are suitable for a wide variety of gases and are supplied pre-scaled to suit your application.
Suitable for vertical installation only, flow upwards.
DFM Range Features:
♦ 0.2-1500 NM3/Hr Air in 13 ranges
♦ 6 different overall lengths from 165-350mm
♦ Choice of tube materials depending upon operating temperature and pressure up to 100C and 10 Bar
♦ Positive pipe 0-ring sealing requiring less tightening effort when installing
♦ Standard or magnetic floats (where alarms required) of identical mass ensure identical flow ranges when changing
♦ Optional bi-stable adjustable alarm on rear slide
♦ Optional 4-20 mA transmitter (ATEX EEx ia)
Suitable for vertical installation only, flow upwards.
DFM Range Features:
♦ 0.2-1500 NM3/Hr Air in 13 ranges
♦ 6 different overall lengths from 165-350mm
♦ Choice of tube materials depending upon operating temperature and pressure up to 100C and 10 Bar
♦ Positive pipe 0-ring sealing requiring less tightening effort when installing
♦ Standard or magnetic floats (where alarms required) of identical mass ensure identical flow ranges when changing
♦ Optional bi-stable adjustable alarm on rear slide
♦ Optional 4-20 mA transmitter (ATEX EEx ia)
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![DFM350 2.1/2" 50 - 500 NM3/Hr (Air 1 Bar Abs 20 C)]()
DFM350 2.1/2" 50 - 500 NM3/Hr (Air 1 Bar Abs 20 C)
SKU: 46322~GASDFM350 2.1/2" 50 - 500 NM3/Hr (Air 1 Bar Abs 20 C)
Plastic Variable Area Meter
350mm Length
See Options: Alarms / 4-20 mA£662.03
£794.44 inc VAT![DFM350 2.1/2" 80 - 720 NM3/Hr (Air 1 Bar Abs 20 C)]()
DFM350 2.1/2" 80 - 720 NM3/Hr (Air 1 Bar Abs 20 C)
SKU: 46323~GASDFM350 2.1/2" 80 - 720 NM3/Hr (Air 1 Bar Abs 20 C)
Plastic Variable Area Meter
350mm LengthSee Options: Alarms / 4-20 mA£662.03
£794.44 inc VAT![DFM350 2.1/2" 400 - 1500 NM3/Hr (Air 1 Bar Abs 20 C)]()
DFM350 2.1/2" 400 - 1500 NM3/Hr (Air 1 Bar Abs 20 C)
SKU: 46324~GASDFM350 2.1/2" 400 - 1500 NM3/Hr (Air 1 Bar Abs 20 C)
Plastic Variable Area Meter
350mm Length
See Options: Alarms / 4-20 mA£662.03
£794.44 inc VAT![DFM350 2" 14 - 125 NM3/Hr (Air 1 Bar Abs 20 C)]()
DFM350 2" 14 - 125 NM3/Hr (Air 1 Bar Abs 20 C)
SKU: 46316~GASDFM350 2" 14 - 125 NM3/Hr (Air 1 Bar Abs 20 C)
Plastic Variable Area Meter
350mm Length
See Options: Alarms / 4-20 mA£393.13
£471.76 inc VAT![DFM350 2" 22 - 190 NM3/Hr (Air 1 Bar Abs 20 C)]()
DFM350 2" 22 - 190 NM3/Hr (Air 1 Bar Abs 20 C)
SKU: 46317~GASDFM350 2" 22 - 190 NM3/Hr (Air 1 Bar Abs 20 C)
Plastic Variable Area Meter
350mm Length
See Options: Alarms / 4-20 mA£393.13
£471.76 inc VAT![DFM350 2" 35 - 300 NM3/Hr (Air 1 Bar Abs 20 C)]()
DFM350 2" 35 - 300 NM3/Hr (Air 1 Bar Abs 20 C)
SKU: 46318~GASDFM350 2" 35 - 300 NM3/Hr (Air 1 Bar Abs 20 C)
Plastic Variable Area Meter
350mm Length
See Options: Alarms / 4-20 mA£393.13
£471.76 inc VAT![DFM350 1.1/2" 7 - 65 NM3/Hr (Air 1 Bar Abs 20 C)]()
DFM350 1.1/2" 7 - 65 NM3/Hr (Air 1 Bar Abs 20 C)
SKU: 46311~GASDFM350 1.1/2" 7 - 65 NM3/Hr (Air 1 Bar Abs 20 C)
Plastic Variable Area Meter
350mm Length
See Options: Alarms / 4-20 mA£273.01
£327.61 inc VAT![DFM350 1.1/2" 10 - 90 NM3/Hr (Air 1 Bar Abs 20 C)]()
DFM350 1.1/2" 10 - 90 NM3/Hr (Air 1 Bar Abs 20 C)
SKU: 46312~GASDFM350 1.1/2" 10 - 90 NM3/Hr (Air 1 Bar Abs 20 C)
Plastic Variable Area Meter
350mm Length
See Options: Alarms / 4-20 mA£273.01
£327.61 inc VAT![DFM350 1.1/4" 5 - 50 NM3/Hr (Air 1 Bar Abs 20 C)]()
DFM350 1.1/4" 5 - 50 NM3/Hr (Air 1 Bar Abs 20 C)
SKU: 46306~GASDFM350 1.1/4" 5 - 50 NM3/Hr (Air 1 Bar Abs 20 C)
Plastic Variable Area Meter
350mm Length
See Options: Alarms / 4-20 mA£245.71
£294.85 inc VAT![DFM350 1.1/4" 10 - 80 NM3/Hr (Air 1 Bar Abs 20 C)]()
DFM350 1.1/4" 10 - 80 NM3/Hr (Air 1 Bar Abs 20 C)
SKU: 46307~GASDFM350 1.1/4" 10 - 80 NM3/Hr (Air 1 Bar Abs 20 C)
Plastic Variable Area Meter
350mm Length
See Options: Alarms / 4-20 mA£245.71
£294.85 inc VAT![DFM350 1" 2.5 - 20 NM3/Hr (Air 1 Bar Abs 20 C)]()
DFM350 1" 2.5 - 20 NM3/Hr (Air 1 Bar Abs 20 C)
SKU: 46303~GASDFM350 1" 2.5 - 20 NM3/Hr (Air 1 Bar Abs 20 C)
Plastic Variable Area Meter
350mm Length
See Options: Alarms / 4-20 mA£193.84
£232.61 inc VAT![DFM350 1" 4 - 32 NM3/Hr (Air 1 Bar Abs 20 C)]()
DFM350 1" 4 - 32 NM3/Hr (Air 1 Bar Abs 20 C)
SKU: 46304~GASDFM350 1" 4 - 32 NM3/Hr (Air 1 Bar Abs 20 C)
Plastic Variable Area Meter
350mm Length
See Options: Alarms / 4-20 mA£193.84
£232.61 inc VAT![DFM200 1" 2 - 14 NM3/Hr (Air 1 Bar Abs 20 C)]()
DFM200 1" 2 - 14 NM3/Hr (Air 1 Bar Abs 20 C)
SKU: 47529~GASDFM200 1" 2 - 14 NM3/Hr (Air 1 Bar Abs 20 C)
Plastic Variable Area Meter
200mm Length
See Options: Alarms / 4-20 mA£152.89
£183.47 inc VAT![DFM200 1" 1.2 - 9 NM3/Hr (Air 1 Bar Abs 20 C)]()
DFM200 1" 1.2 - 9 NM3/Hr (Air 1 Bar Abs 20 C)
SKU: 47528~GASDFM200 1" 1.2 - 9 NM3/Hr (Air 1 Bar Abs 20 C)
Plastic Variable Area Meter
200mm Length
See Options: Alarms / 4-20 mA£152.89
£183.47 inc VAT![DFM200 1" 4 - 35 NM3/Hr (Air 1 Bar Abs 20 C)]()
DFM200 1" 4 - 35 NM3/Hr (Air 1 Bar Abs 20 C)
SKU: 47530~GASDFM200 1" 4 - 35 NM3/Hr (Air 1 Bar Abs 20 C)
Plastic Variable Area Meter
200mm Length
See Options: Alarms / 4-20 mA£152.89
£183.47 inc VAT![DFM200 1" 6 - 50 NM3/Hr (Air 1 Bar Abs 20 C)]()
DFM200 1" 6 - 50 NM3/Hr (Air 1 Bar Abs 20 C)
SKU: 47531~GAS
DFM200 1" 6 - 50 NM3/Hr (Air 1 Bar Abs 20 C)
Plastic Variable Area Meter
200mm Length
See Options: Alarms / 4-20 mA£152.89
£183.47 inc VAT![DFM185 3/4" 2.4 - 20 NM3/Hr (Air 1 Bar Abs 20 C)]()
DFM185 3/4" 2.4 - 20 NM3/Hr (Air 1 Bar Abs 20 C)
SKU: 47526~GASDFM185 3/4" 2.4 - 20 NM3/Hr (Air 1 Bar Abs 20 C)
Plastic Variable Area Meter
185mm Length
See Options: Alarms / 4-20 mA£148.79
£178.55 inc VAT![DFM185 3/4" 0.8 - 5.6 NM3/Hr (Air 1 Bar Abs 20 C)]()
DFM185 3/4" 0.8 - 5.6 NM3/Hr (Air 1 Bar Abs 20 C)
SKU: 47524~GASDFM185 3/4" 0.8 - 5.6 NM3/Hr (Air 1 Bar Abs 20 C)
Plastic Variable Area Meter
185mm Length
See Options: Alarms / 4-20 mA£148.79
£178.55 inc VAT![DFM185 3/4" 2 - 14 NM3/Hr (Air 1 Bar Abs 20 C)]()
DFM185 3/4" 2 - 14 NM3/Hr (Air 1 Bar Abs 20 C)
SKU: 47525~GASDFM185 3/4" 2 - 14 NM3/Hr (Air 1 Bar Abs 20 C)
Plastic Variable Area Meter
185mm Length
See Options: Alarms / 4-20 mA£148.79
£178.55 inc VAT![DFM185 3/4" 4 - 36 NM3/Hr (Air 1 Bar Abs 20 C)]()
DFM185 3/4" 4 - 36 NM3/Hr (Air 1 Bar Abs 20 C)
SKU: 47527~GASDFM185 3/4" 4 - 36 NM3/Hr (Air 1 Bar Abs 20 C)
Plastic Variable Area Meter
185mm Length
See Options: Alarms / 4-20 mA£148.79
£178.55 inc VAT
