Vortex

With Yokogawa innovation, the digital vortex flowmeter combines the field proven sensor and body assembly used in more than 260,000 units installed worldwide with a unique and powerful combination of digital technology that includes spectral signal processing (SSP).

The digital vortex flowmeter is accurate and stable, even in harsh process conditions, and has a highly reliable and robust design that delivers improvements in plant efficiency and reduced operating costs

A versatile selection of vortex flow meters with an absence of moving parts for measuring clean or dirty liquids, wet or dry gases or steams.

They are applicable to a wide range of flows and process temperatures and are available in line sizes up to approximately 400 mm with insertion vortex meters available for even larger pipe sizes. Vortex flow meters are work best with clean, low-viscosity, medium to high speed fluids.

The measuring signal is not subject to drift. Consequently, vortex meters can operate an entire life long without recalibration.

Especial easy to install and commission.

Apply to pipe size DN70 or above.

Output 4-20mA to secondary instrument or some Intelligent Module such as DCS, PLC.

Can output pulse and equipped with flow totalizer for remote monitoring.

Can communication with computer or other control system under RS485 or HART protocol.

Vortex Flow Meter Model DY:

		Standard Type	Reduced Bore Type	Multi-Variable Type
Model		Model DY Vortex Flowmeter (Integral Type, Remote Type) Model DYA Vortex Flow Converter (Remote Type) (Option for High Process Temperature Version: /HT, Option for Cryogenic Version: /LT)	Option: /R1, /R2 1 size down: /R1 2 size down: /R2 (Option for High Process Temperature Version: /HT)	Option: /MV
Fluid to be Measured		Liquid, Gas, Steam (Avoid Multiphase Flow and Sticky Fluids)
Nominal Size	Wafer	15 to 100 mm	N/A	25 to 100 mm
	Flange	15 to 300 mm (Special: 400 mm)	R1: 25 to 200 mm (Detector: 15 to 150 mm) R2: 40 to 200 mm (Detector: 15 to 100 mm)	25 to 200 mm (Special: 250 to 300 mm)
Accuracy	Liquid	±0.75% of Reading (Depends on Reynolds number)	±1.0% of Reading (Depends on Reynolds number)	±0.75% of Reading (Depends on Reynolds number)
	Gas Steam	±1.0% of Reading (Depends on flow velocity)
Output Signal		Dual Output (Both analog and pulse output available) Communication: HART 5/HART 7, BRAIN, FOUNDATION™ fieldbus
Process Temperature		-29 to 250 deg C -29 to 450 deg C (/HT) -196 to 100 deg C (/LT)	-29 to 250 deg C -29 to 450 deg C (/HT)	-29 to 250 deg C -29 to 400 deg C (Special)
Process Pressure		-0.1MPa (-1kg/cm2) to flange rating
Ambient Temperature		-29 to 85 deg C (Depends on model type)
Ambient Humidity		5 to 100% RH (No Condensation)
Mounting		Flange or Wafer Type JIS 10/20/40K ANSI 150/300/600/900 (Special: 1500) DIN PN 10/16/25/40/ 60/100/160	Flange Type only JIS 10/20K ANSI 150/300	Flange or Wafer Type JIS 10/20/40K ANSI 150/300/600/ 900 DIN PN 10/16/25/40
Electrical Connection		JIS G1/2 Female, ANSI 1/2NPT Female, ISO M20×1.5 Female
Explosion Protected Type		TIIS Ex d, FM Ex d/Ex ia, ATEX Ex d/Ex ia, CSA Ex d/Ex ia, IECEx Ex d, SAA Ex ia
Material		Body: Stainless steel(Special: Hastelloy, Carbon steel) Shedder Bar: Duplex stainless steel(Option: Stainless steel, Hastelloy) Gasket: Stainless steel with Teflon coating (/HT: with Silver plating) Converter housing, case and cover: Aluminum alloy(Option: Stainless steel)

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