digitalYEWFLO Reduced Bore Type Vortex Flowmeter

The optimal solution

-	No longer is it necessary to change the orifice plate to adjust for changes in the flow rate.
-	Totalization and self-diagnostic functions are available for enhanced flowrate management.

Easy installation

	<Conventional configuration>
	-	Installation is difficult, involving many different nuts, bolts, and gaskets.
	-	Customer must provide reducers and extension tubes.
	-	There are six connection points, each of which is a potential leak point.



	<The reduced bore digitalYEWFLO solution>
	-	Expanded low flow measurement range
	-	Easy to install
	-	Requires no additional parts
	-	There are only two connection points -- meaning there are fewer locations where leaks can occur.
	-	The same face-to-face dimensions eases the task of installing other sizes or types of digitalYEWFLO flowmeters.

While formerly two different types of orifice plates had to be changed to adapt to fluctuations in the line flow rate, this is no longer necessary with the digitalYEWFLO reduced bore type.
In lines that require annual or long-term flow maintenance, the digital YEWFLO eliminates the need to interrupt the flow to perform this work.
Yokogawa vortex flowmeters are well suited to high temperature and high pressure applications, and the quality of flow management can be improved even further through the use of anti-vibrating efficiency and self diagnostic functions that rely on the digitalYEWFLO's SSP system.

	Standard	Multi-Variable	Reduced Bore
Model & code	DY Vortex Flowmeter	Optional code:/MV	Option code:/R1, /R2 (Release in the end of September)
Fluid to be measured	Liquid, gas, steam (avoid multiphase flow and sticky fluids)
Nominal size	15mm ∼ 300mm (400mm:special）	25mm ∼ 200mm	25mm ∼ 200mm
Accuracy	Liquid: ±1.0% of reading（20000≤Re≤10ˆ3） Liquid: ±0.75% of reading（D×10ˆ3≤Re）		Liquid: ±1.0% of reading （20000≤Re≤10ˆ3）
	Gas, steam: ±1.0% of reading (flow velocity less than 35m/s） Gas, steam: ±1.5% of reading (flow velocity 35m/s～80m/s）
Output signal	Simultaneous output(both analog and transistor contact output available)
Process temperature range	-29 deg C ∼ 260 deg C(standard） -196 deg C ∼ 100 deg C(option: cryogenic version） -29 deg C ∼ 450 deg C（option: high process temperature version）
Process pressure limit	-0.1MPa (-1kg/cm2) to flange rating
Ambient temperature	-29 to 85 deg C (Integral type / No indicator) -29 to 80 deg C (Integral type / with indicator) -29 to 85 deg C (Remote type detector) -40 to 85 deg C (Remote type converter / No indicator) -30 to 80 deg C (Remote type converter / with indicator)
Ambient humidity	5～100%RH( Non-condensing）
Mounting	Integral type and Remote type detector: Flange mounting or wafer mounting Remote type converter: 2 inch pipe mounting JIS10/20/40、ANSI150/300/600/900,　JPI150/300/600,DIN PN10/16/25/40
Electrical connection	JIS G1/2 female, ANSI 1/2NPT female, ISO M20×1.5 female
Explosion protected type	TIIS F.P., FM E.P./I.S., CENELEC ATEX(KEMA) E.P./I.S./type n, CSA E.P./I.S., SAA E.P./I.S., SAA E.P./I.S.
Material	Body: SCS14A cast stainless steel (equivalent to SUS316,CF8M） Shedder bar: duplex stainless steel (option:anti-corrosion version) Gasket: SUS316 stainless steel with polytetrafluoroethylene (Teflon) coating Converter housing and case cover: aluminum alloy