Plastic 25mm Pressure Gauges 30PSI: Ultimate Guide
Plastic 25mm pressure gauges rated for 30PSI are compact, durable instruments widely used in applications requiring precise low-pressure monitoring. Their corrosion-resistant plastic construction makes them ideal for water systems, aquariums, air compressors, and medical devices.
Key Features and Benefits
These gauges offer excellent readability, shock resistance, and affordability. The 25mm size ensures easy integration into tight spaces without compromising accuracy. Common units include PSI, bar, and kPa, with 30PSI models perfect for low-pressure environments.
How to Select the Right Gauge
Consider media compatibility, environment conditions, and required accuracy. For corrosive fluids or outdoor use, ensure the gauge material (e.g., polycarbonate) and seal type match your needs. Always verify pressure range—overpressure can damage the gauge.
Installation Best Practices
Mount the gauge vertically to avoid errors. Use thread sealant compatible with your media. Avoid over-tightening connections. For pulsating pressures, install a snubber to prolong gauge life and ensure stable readings.
Maintenance and Calibration
Regularly inspect for cracks, leaks, or fogging. Clean with mild soap; avoid solvents. Calibrate annually against a known standard. Store in a dry, temperature-stable environment when not in use.
Frequently Asked Questions
Q: Can I use these gauges for oxygen systems?
A: No—special cleaned and oil-free gauges are required for oxygen to prevent combustion hazards.
Q: What is the typical accuracy?
A: Most plastic 25mm gauges offer ±3-5% full scale accuracy at 30PSI.
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