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Product
Liquid-filled (Shock-resistant) Pressure Gauge
- Product details
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Application Scope:
Shock-resistant pressure gauges are mainly used for pressure detection in metallurgical, power, petroleum, chemical, light industry, machinery, and other industrial sectors. Equipped with internal damping oil and buffer devices, the gauge has excellent anti-vibration performance. It is suitable for occasions where the measured medium pressure has strong pulse changes, pressure shocks, frequent sudden unloading in the production process, and places with large environmental vibration. The gauge can measure the average value of gas and liquid pulsating pressure to overcome damage from strong medium pulses and environmental vibration, ensuring accurate readings.
Stainless steel shock-resistant pressure gauges feature a stainless steel case and can be used in harsh environments with corrosion and high vibration.
Main Technical Parameters:
Measuring range: 0.06~2.4 MPa (customizable on request)
Dial diameter: Φ60, Φ100, Φ150
Accuracy class: 1.6%, 2.5%
Ambient temperature: 5~55°C (glycerin filled); 25~55°C (silicone oil filled)
Material: Stainless steel
Please contact us for detailed specifications, models and catalog selection. We will provide customized selection services！
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Q
What is a thermocouple?
A
Thermocouples are the preferred solution for extreme temperature applications. They consist of two dissimilar metal wires joined at the measuring end, generating a voltage proportional to the temperature difference.
Working Principle: When two different metals are connected, the thermoelectric effect produces a voltage at the junction. This voltage increases with rising temperature, allowing measurement via reference tables.
Key Advantages:
• Temperature Range: -270°C to 2300°C (depending on type)
• Fast Response Time (typically 0.1–10 seconds)
• Robust Construction, vibration-resistant
• Relatively Low Cost
• No External Power Required
Q
What is the difference between RTD and thermocouple?
A
• RTD (Resistance Temperature Detector): Based on the principle that a metal conductor's resistance increases with temperature, it converts resistance measurements into temperature readings.
• Thermocouple: Operates on the Seebeck effect, where two dissimilar metals in contact generate a thermoelectric voltage proportional to temperature differences.
Features
• RTD: High accuracy, stable signal, excellent linearity, ideal for low to medium temperatures.
• Thermocouple: Simple structure, fast response, high-temperature resistance, wide measurement range.
Pros & Cons
• RTD Pros: High precision, strong anti-interference, reliable low-temperature performance.
Cons: Limited upper temperature range, bulkier size, slightly slower response.
• Thermocouple Pros: Broad temperature range, high-temperature tolerance, rapid response, suitable for moving/surface measurements.
Cons: Lower accuracy at low temperatures, requires cold junction compensation, weaker signal prone to interference.
