Introduction to Low Pressure Gauges
- market3849
- Apr 28
- 2 min read
Low pressure gauges, also known as diaphragm gauges, are precision instruments designed to measure subtle pressure changes in gaseous media. Widely used in industrial, residential, and commercial settings, these gauges ensure the safe and efficient operation of systems such as natural gas furnaces, L.P. gas appliances, vacuum pumps, and air compressors.
How Diaphragm Gauges Work
The Diaphragm Gauges uses a corrugated diaphragm as the core sensing element and operates on the principle of elastic deformation to achieve pressure-to-displacement conversion. When pressure is applied, the diaphragm deflects, and this deflection is transmitted through mechanical linkages to the pointer on the dial. This allows for clear and accurate readings, even at very low pressures.
These low pressure gauges are capable of measuring pressures ranging from -40 kPa to 60 kPa, making them highly effective for a wide range of low-pressure measurement scenarios.
Key Features
- Sensitive Diaphragm Element: Utilizes a phosphor bronze or stainless steel diaphragm element to detect minute pressure variations.
- Durable Construction: It is made of sturdy materials such as steel case, polycarbonate/glass lenses and brass/stainless wetted parts, featuring durability
- Calibration Flexibility: Select models include an external recalibration screw for zero adjustment, enhancing long-term reliability.
- Compliance & Certification: Meets ASME B40.100 standards and ISO9001:2015 standards, ensuring adherence to rigorous safety and performance criteria.
Applications
Low pressure gauges are indispensable in:
- Gas Pressure Testing: Setting and verifying manifold pressures in natural gas/L.P. systems
- Leak Detection: It can test and identify leaks in natural gas pipelines.
- Industrial Equipment: Measuring vacuum levels in ovens, compressors, and respirators.
Precautions
- Avoid Overpressure: Exceeding 75% of the full-scale value may damage the diaphragm.
- Handle with Care: The gauge is sensitive to shocks—avoid dropping or rough handling.
Conclusion
Shanghai Qualitywell’ low pressure gauges combine precision, durability, and user-centric design, making them essential tools for ensuring safety and efficiency in gas and pneumatic systems. With compliance to global standards and versatile applications, these gauges are a reliable choice for technicians and engineers across industries.
For more types of Low Pressure Gauges, please visit our website: www.shanghaiqualitywell.com
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