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Yokogawa VF702VF7STYS1
- Product Name: Yokogawa VF702VF7STYS1 Vortex Flowmeter Assembly
- Product Series: VF Series Vortex Flowmeter
- Technical Specifications: Measuring principle: Karman vortex street; process connection configuration integrated per suffix code VF7STYS1; signal output: pulse or analog signal; wetted material matched to industrial fluid media
Detailed content
- Functional Features: Measures volumetric flow rate of liquid, gas, and steam; outputs linearized flow signals; supports temperature‑pressure compensation for steam applications; built‑in flow totalization function
- Performance Parameters: Measuring range covers standard industrial pipe sizes; operating pressure withstand capacity compliant with process industry standards; operating temperature range: −40 °C to +250 °C; accuracy class: ±1.0% of reading for liquid, ±1.5% of reading for gas/steam
- Material Composition: Wetted parts: stainless steel (316L); sensor housing: aluminum alloy with anti‑corrosion coating; internal vortex shedding body: precision‑machined stainless steel
- Structural Characteristics: Integral vortex generation and detection unit; compact inline installation structure; robust sealed housing for field deployment
- Working Principle: Fluid passing the bluff body generates regular Karman vortices; vortex frequency is proportional to flow velocity; sensor detects vortex frequency and converts to flow rate signal
- Advantages & Highlights: No moving parts for low maintenance; high measurement stability; wide turndown ratio; resistant to medium pressure fluctuation interference; long service life
- Applicable Industries: Oil & gas, chemical processing, thermal power, heating engineering, pulp & paper, energy metering
- Installation Requirements: Install with sufficient upstream and downstream straight pipe sections; avoid installation near elbows, valves, and flow‑disturbing fittings; horizontal or vertical mounting allowed per medium type
- Usage Precautions: Prevent solid particle deposition on vortex body; avoid cavitation in liquid measurement; strictly adhere to process pressure and temperature limits
