YATAN

Pressure Switch

AllGeneral PurposeIntelligent

The Intelligent Pressure Switch Series integrates pressure measurement, digital display, signal output, and automatic control into a single high-performance industrial device. Featuring advanced sensor technology and microprocessor-based control, this series supports multiple output options including 4–20mA, PNP, and NPN signals. Adjustable setpoints and hysteresis provide flexible and precise pressure control for various industrial automation applications. Compared to traditional mechanical pressure switches, intelligent models offer higher accuracy, longer service life, and superior resistance to vibration and electromagnetic interference. Widely used in hydraulic systems, pneumatic systems, water treatment, construction machinery, and oil & gas industries, this series is an ideal solution for smart pressure monitoring and control.

STP03 Smart Pressure Switch with 4–20mA Output (PNP/NPN)

Industrial Automation EquipmentHydraulic and pneumatic systemsPetrochemical EquipmentConstruction machineryProcess monitoring
  • Pressure Range:0.1 to 600Bar
  • Accuracy:±0.5%F.S.
  • Process Connection:G1/4, G1/2, M20×1.5 or customized
  • Output signals:4–20 mA, PNP, NPN
  • Overpressure:200% FS
  • Burst pressure:500% FS
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STP04 Intelligent Digital Pressure Switch

Industrial Automation EquipmentHydraulic and pneumatic cylinder stroke measurementPetrochemical EquipmentConstruction machinery
  • Pressure Range:0.1 to 600Bar
  • Accuracy:±0.5%F.S.
  • Long-term Stability: ≤ ±0.2%F.S./year
  • Process Connection:G1/4, G1/2, M20×1.5 or customized
  • Output signals:Dual switching outputs, selectable NPN/PNP, and 4–20 mA analog output
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STP04G Intelligent Digital Pressure Switch with 4-20mA

Polyurethane Processing EquipmentFoaming equipmentFermentation EquipmentMedical equipmentFood processing & sanitary machinery
  • Pressure Range:0.1 to 600Bar
  • Accuracy:±0.5%F.S.
  • Process Connection:G3/4
  • Output signals:Dual switching outputs, selectable NPN/PNP, and 4–20 mA analog output
  • Temperature compensation range(accuracy maintained within this range):-25°C to +85°C
  • Operating temperature range:-25 to +85°C
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Frequently Asked Questions (FAQ)

Q1: Can intelligent pressure switches replace mechanical pressure switches?

Yes, in most industrial applications, intelligent pressure switches can replace mechanical pressure switches. They offer higher accuracy, better reliability, and additional features such as digital display, remote output, and programmable settings.

Q2: What are the benefits of a 4–20mA intelligent pressure switch?

A 4–20mA output provides strong anti-interference capability, long-distance transmission, and stable signal performance. It is one of the most widely used standards in industrial automation environments.

Q3: Do intelligent pressure switches support OEM customization?

Yes, intelligent pressure switches support OEM/ODM customization, including pressure range, output signals, process connections, housing materials, and branding to meet specific application requirements.

Q4: What applications are intelligent pressure switches used for?

Intelligent pressure switches are widely used in hydraulic systems, pneumatic systems, water treatment, construction machinery, petrochemical industries, and industrial automation lines. They are ideal for pressure monitoring and control applications.

Q5: What are the advantages of a digital display pressure switch?

A digital display pressure switch allows real-time monitoring of pressure values, making on-site debugging and operation easier. It also enables parameter configuration such as setpoints and hysteresis, improving control accuracy and reducing manual intervention.

Q6: What output signals are available for intelligent pressure switches?

Intelligent pressure switches typically support multiple output signals, including 4–20mA analog output, PNP/NPN switching signals, and optional digital communication such as RS485. These options make them suitable for PLC control, data acquisition, and remote monitoring systems.

Q7: How to choose the right intelligent pressure switch for industrial automation systems?

When selecting an intelligent pressure switch, consider the pressure range, output signals (such as 4–20mA, PNP/NPN), process connection (G1/4, NPT, etc.), and the type of media (gas or liquid). Also evaluate environmental conditions like temperature, pressure, and corrosion to ensure reliable and long-term performance.

Q8: What is an intelligent pressure switch and how does it differ from a mechanical pressure switch?

An intelligent pressure switch integrates pressure measurement, digital display, signal output, and automatic control in one unit. Compared to traditional mechanical pressure switches, it offers higher accuracy (typically ±0.5%FS), longer service life, and better resistance to vibration and electromagnetic interference. It also supports multiple outputs such as 4–20mA, PNP, and NPN, making it ideal for industrial automation applications.

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