YK-VFF-E

Insertion Type Vortex Flow Meter

Insertion-type vortex flow meters consist of a pressure sensor, measurement circuitry, and process connection components; in domestic small-scale automation systems, they often employ piezoresistive sensing—where pressure-induced resistance changes in a silicon chip are amplified and calibrated to detect pressure; differential pressure between process and reference sides deforms a micromachined silicon diaphragm (displacement in micrometers), unbalancing a full-bridge Wheatstone circuit to generate an mV-level voltage proportional to pressure; this signal is processed by a high-gain, temperature-drift-compensated differential amplifier, then converted to a current signal and linearized to produce a standard output linearly corresponding to the input pressure.

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technology parameter

Structure form	Integrated type, Split type	Connection method	Insert type
Shell material	Carbon steel, SUS304, SUS316	Structure type	Atmospheric pressure type, High pressure type, Submersible type
Sensor material	304, 316L, Hastelloy B, Hastelloy C	Ambient temperature	-25 ~ 60℃
Process temperature	-20 ~ 350℃	Applicable pressure	1.0 ~4.0MPa (Negotiable)
Accuracy	±1.0%/1.5%	Electrical interface	M20×1.5 (Negotiable)
Output mode	Pulse output, 4~20mA, HART protocol, RS485	Protection grade	IP65, IP66, IP67
Certification	Intrinsically safe and flameproof	Power supply voltage	24VDC, Battery

Vortex street schematic diagram.png

Selection

Measurement Task
Nominal Diameter (DN)

A:DN15; B:DN20; C:DN25; D:DN32; E:DN40; F:DN65; G:DN80; H:DN100; I:DN125; J:DN150; K:DN200; L:DN250; M:DN300; N:DN350; O:DN400; P:DN450; Q:DN500; R:DN600; S:DN700; T:DN800; U:DN900; V:DN1000; W:DN1100; X:DN1200; Y:DN1300; Z:DN1400; DI:Others;
Power Supply

A:24VDC; B:220VAC; C:Non-powered;
Operating Temperature

A:≤80℃; B:≤120℃; C:≤200℃; D:≤300℃; E:≤400℃;
Pressure Rating

A:0–1.6MPa; B:0–2.5MPa; C:0–4.0MPa; D:0–6.3MPa; E:0–10MPa;
Output Signal

A:4–20mA; B:Pulse; C:Switch Signal; D:No Output;
Installation Type

A:Clamp-on; B:Flanged; C:Insertion type; D:Welded-connection;
Converter Type

A:Integral; B:Remote;
Protection Rating (IP Rating)

A:IP65; B:IP66; C:IP67; D:IP68;
Explosion-Proof Rating

A:Standard; B:Explosion-proof; C:Intrinsic Safety;
Grounding Ring or Grounding Electrode

A:Yes; B:No;
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