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Home Products Flow Measurement Flow Controllers DW 181...184
Flow Controllers - DW 181...184
Flow Controllers DW 181 | DW 182 | DW 183 | DW 184

The DW 18 series of flow controller is ideal for locally indicating the flow of homogenous clean liquids. Adjustable switches generate alarms once switching points are reached.

The units are robust. Several variants are available to suit a wide variety of applications.

 
Mechanical, autonomous flow switches - no power supply needed
For horizontal and vertical pipes from DN 15 up to DN 3000 - and higher
High reliability and repeatability up to 300C / 570F
 
Highlights
Permanent readings using a powerful magnet
No need for a power supply to indicate flow
Unique Ex d design (without dial for local readings)
High temperature version (without local indication) can operate up to 300C (570F)
Available for process pressures up to 120 bar (1740 psig)
No pipe diameter limit: Insertion-type version is suitable for pipes > 250mm
Any tube length is available for easy replacement of existing units
Large choice of process connections and wetted parts material
With optional stainless steel housing
Works with any clean liquid in any position
High reliability and repeatability
Alarm position: set by factory free of charge during test rig flow calibration
Each instrument is individually calibrated and tested
Switch value can be dry-tested!
Optional 3-wire device (without local indication) with 4-20 mA current output (not CE certified!)
Power supply device and digital indication possible via C95 Ci or similar
Versions
DW 181
The DW 181 inline flow controller is suitable for horizontal or vertical pipes. It can have G or NPT threaded connections, sizes ranging from 3/4...2".
The measuring tube and connection are made of either bronze or 316 L (1.4404) stainless steel.
There are two types of indicator available for this variant:
a linear scale with up to two alarm positions at the top and bottom of the indicator (as shown)
a dial which has been made specifically for this instrument and tested on a calibration rig
For information on DW 181 flow ranges, please refer to the flow range tables.
 
DW 182
The DW 182 inline flow controller is suitable for horizontal or vertical pipes. It has flanged connections, sizes ranging from DN 15...DN 65 or from 1/2...2".
The measuring tube and connection is made of 316 L (1.4404) stainless steel. There are two types of indicator available for this variant:
a linear scale with up to two alarm positions at the top and bottom of the indicator
a dial (as shown) which has been made specifically for the instrument and tested on a calibration rig
For information on DW 182 flow ranges, please refer to the flow range tables.
 
DW 183
The DW 183 inline flow controller is suitable for horizontal or vertical pipes. It has flanged connections , sizes ranging from DN 65...DN 200 and 3...8".
The measuring tube and connection is made of either XC 18 (1020) carbon steel or 316 L (1.4404) stainless steel.
Carbon steel flanges with nominal diameters bigger than 100 or 4" can have 316 L stainless steel cladding. There are two types of indicator available for this variant:
a linear scale with up to two alarm positions at the top and bottom of the indicator
a dial (as shown) which has been made specifically for this instrument and tested on a calibration rig
For information on DW 183 flow ranges, please refer to the flow range tables.
 
DW 184
The DW 184 insertion-type flow controller checks flow velocity. It is suitable for horizontal and vertical pipes with nominal diameters of 250 mm / 10" or bigger - there is no maximum pipe diameter.
It is installed on a DN 150 PN 16/40 or 6" ASME150/300 lbs mounting flange. The measuring tube and connection is made of either 1020 (XC 18) carbon steel or 316 L (1.4404) stainless steel.
A mounting flange made of carbon steel can also have 316 L stainless steel cladding. One type of indicator is available for this variant:
a linear scale with alarm positions at the top and bottom of the indicator
For information on DW 184 flow velocity ranges, please refer to the flow range tables.
 
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DW 18 Series
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