Accuracy Grades
The YB Series uses a Bourdon tube as its sensing element and is classified as a high-precision spring-tube pressure gauge. Four accuracy grades are available:
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0.4% FS – High-accuracy pressure gauge
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0.25% FS – High-accuracy pressure gauge
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0.16% FS – High-precision precision pressure gauge
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0.1% FS – High-precision precision pressure gauge
The 0.4% and 0.25% grades are commonly referred to as high-accuracy gauges, while the 0.16% and 0.1% grades are designated as high-precision precision pressure gauges.
Model Series & Options
The YB Series is available in 150mm and 160mm dial diameters, with several configuration options:
YB-150 Series (150mm dial)
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YB-150 – Standard model
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YB-150A – With zero adjustment
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YB-150B – With anti-glare mirror scale
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YB-150C – With both zero adjustment and mirror scale
YB-160 Series (160mm dial)
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YB-160 – Standard model
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YB-160A – With zero adjustment
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YB-160B – With anti-glare mirror scale
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YB-160C – With both zero adjustment and mirror scale
Special models
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YBT-254 – Bench-mounted precision pressure gauge, 250mm dial
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BXY-250 – Precision sphygmomanometer, 0-40kPa, 250mm dial
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YB-150D – 0.16% grade, 150mm dial
Key Features
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High accuracy – Available in 0.4%, 0.25%, 0.16%, and 0.1% grades to suit different calibration and measurement needs
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Wide range selection – Covers from vacuum (-0.1MPa) up to 250MPa, with numerous intermediate ranges
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Bourdon tube construction – Proven mechanical design for stable, repeatable performance
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Multiple spring-tube materials – Tin-phosphor bronze for lower ranges; chrome-vanadium steel for higher ranges
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Simple and reliable – No external power required; direct mechanical indication
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Intuitive reading – Clear dial with optional anti-glare mirror scale for precise readings
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Zero adjustment – Available on A and C models for field calibration
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Complete series – Full range of models, dial sizes, and configurations to match any application
Measurement Ranges
The YB Series offers an extensive selection of ranges, including:
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Vacuum: -0.1 ~ 0 MPa
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Positive pressure (tin-phosphor bronze): 0 ~ 0.1, 0.16, 0.25, 0.4, 0.6, 1, 1.6, 2.5, 4, 6 MPa
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Positive pressure (chrome-vanadium steel): 0 ~ 6 (B型), 10, 16, 25, 40, 60 MPa
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Compound: -0.1 ~ 0 ~ 250 MPa
Typical Applications
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Calibration of industrial pressure gauges in workshops and laboratories
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Online measurement of high-accuracy process media
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Pressure value transfer and metrological verification
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Petroleum, chemical, and petrochemical processing
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Scientific research and experimental testing
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Quality control and inspection departments
Why Choose the YB Series
Trusted standard – With decades of production history and compliance with national standards, the YB Series is a proven reference instrument.
Complete range – From 0.1% to 0.4% accuracy, 150mm to 250mm dials, and ranges from vacuum to 250MPa – there’s a model for every requirement.
Simple and dependable – Mechanical Bourdon tube construction means no power supply, no electronics to fail, and minimal maintenance.
Cost-effective – High performance at a competitive price point.
Field-ready – Optional zero adjustment and anti-glare mirror scale make on-site reading and calibration easy.
