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Product
Stainless Steel Pressure Gauge
- Product details
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Instrument Principle:
The instrument consists of a pressure guide system, gear transmission mechanism, indicating device, and case. The case is airtight, effectively protecting internal components from environmental impact and contamination. For liquid-filled gauges, they can resist severe vibration in the working environment and reduce the influence of medium pressure pulsation.
Application Scope:
Stainless steel pressure gauges are widely used in petroleum, chemical, metallurgical, power station, and other industrial sectors. They can be used in situations where the measured medium is highly corrosive, the working environment is harsh, and high shock resistance is required.
Main Technical Parameters:
Case diameter: 60, 100, 150 mm
Accuracy: 1.6%, 2.5%
Wetted parts: SUS316L
Glass: Explosion-proof glass
Protection class: IP65
Measuring range: 0.1~2.4 MPa (customizable on request)
Operating temperature range: -40~70°C (varies by model)
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.
