Pressure Gauge 63mm, HiAir : Best , 0-300 PSI, 1/4 BSP Male

The HiAir Pressure Gauge is a high-precision analog pressure measuring tool designed for accuracy, durability, and reliability. With a 63mm (2.5 inch) dial, 0–21 kg/cm² (0–300 PSI) pressure range, and 1/4 BSP male bottom entry, it suits a wide variety of industrial and mechanical applications.

Built with brass internals, an aluminium dial, a glass window, and a mild steel case with black powder coating, the HiAir Pressure Gauge is engineered for long-lasting performance.

Whether monitoring compressors, pumps, or hydraulic equipment, it provides quick, accurate, and clearly visible readings.

Key Features :HiAir Pressure Gauge 63mm

• Pressure Range: 0–21 kg/cm² (0–300 PSI)
• Dial Size: 63mm (2.5 inch) for high visibility
• Accuracy: ±2% Full Scale Deflection (FSD)
• Connection: 1/4 BSP Male, bottom entry (Direct Mounting)
• Materials:
  • Internals: Mostly brass
  • Socket: Brass
  • Case: CACR mild steel (black powder coated)
  • Dial: White aluminum with black and red markings
  • Pointer: Aluminum, black coated
  • Window: Plan, clean glass
  • Sealing Gasket: White plastic ring
• Item Dimensions: 6.4 x 8.5 x 3 cm
• Weight: 130 grams

Who Can Use This Pressure Gauge 63mm :

• Industrial Technicians
• Mechanical Engineers
• HVAC and Hydraulic Technicians
• Workshop Professionals
• Automotive and Machinery Maintenance Teams

Where It Can Be Used :

• Hydraulic and pneumatic systems
• Air compressors
• Industrial pressure systems
• Automotive applications
• Pumps and water systems
• Agricultural and irrigation setups

How to Use the HiAir Pressure Gauge 63mm :

1. Mount Securely: Attach to a compatible 1/4 BSP female port.
2. Ensure Leak-Free Connection: Use thread tape if necessary.
3. Check System Readings: Observe the dial for current pressure.
4. Monitor Regularly: Use for both static and dynamic pressure checks.
5. Remove Carefully: Shut off system pressure before detaching.

Tips for Best Use :

• Always match pressure range with your system’s capacity.
• Don’t exceed the max pressure (300 PSI) to prevent damage.
• Clean the glass window for unobstructed visibility.
• Avoid sudden pressure shocks.
• Use vertically for best accuracy.

Care and Maintenance :

• Keep Dry: Avoid water exposure unless gauge is rated waterproof.
• Clean Regularly: Wipe the glass window and outer case.
• Avoid Corrosive Environments: Store in clean, dry areas.
• Check Calibration: Periodically validate against a standard.
• Inspect Seals: Ensure gasket integrity to avoid leaks.

Precautions :

• Do not use with incompatible fluid or gas types.
• Always mount with the correct thread match.
• Avoid tampering with the pointer or dial.
• Do not drop or expose to mechanical shock.
• Do not use near strong magnetic fields.

Positive Sentiments :

✅ Clear and accurate readings
✅ Durable brass and steel construction
✅ Reliable for industrial use
✅ Good visibility dial with contrast printing
✅ Compact and lightweight

Negative Sentiments :

❌ Not digital – analog only
❌ No backlight for low-light environments
❌ No overpressure protection built-in
❌ Limited to bottom-entry mounting only
❌ Accuracy is standard (±2%) – not lab-grade

Comparison :

Feature	HiAir 63mm Gauge	Generic Digital Gauge	Dual Entry Industrial Gauge
Dial Size	63mm	45–60mm (LCD)	100mm
Mounting	Bottom	Universal	Bottom & Rear
Accuracy	±2% FSD	±1% or ±0.5%	±1.6% FSD
Max Pressure	300 PSI	500 PSI	600 PSI
Material	Brass, MS, Glass	Plastic, Metal	Stainless Steel
Display	Analog	Digital	Analog
Weight	130g	90–200g	300g+
Price	Affordable	Medium–High	High

Conclusion :

The HiAir 63mm Pressure Gauge 63mm is a well-engineered analog pressure measuring device suited for a variety of professional and mechanical applications.

With its clear dial, durable brass internals, and compact size, it’s ideal for those needing an accurate and dependable gauge without the complexity or expense of digital systems.

If you’re in need of a robust pressure gauge for compressors, hydraulics, or automotive systems, the HiAir Pressure Gauge delivers precision and value.

FAQs :

Q1. What is the pressure range of this 63mm gauge ?
0 to 21 kg/cm² or 0 to 300 PSI.

Q2. What type of connection does it use?
A 1/4 BSP male threaded connection with bottom entry.

Q3. Can this gauge be used with water systems?
Yes, as long as the pressure range matches and the medium is compatible with brass.

Q4. Is the dial easy to read?
Yes, it features a white aluminum dial with black and red markings for clear visibility.

Q5. Is it waterproof?
It is not waterproof; avoid exposure to water unless installed in a protected enclosure.

Q6. Can I mount it in any direction?
It is designed for bottom entry and vertical mounting for best accuracy.

Q7. Does it come calibrated?
Yes, factory-calibrated to ±2% FSD.

Q8. Can this gauge be used outdoors?
Only if protected from rain and extreme temperatures.

Q9. Does it have a safety overpressure limit?
No dedicated overpressure protection – ensure pressure stays within rated limits.

Q10. What’s the body made of?
Mild steel case (CACR), with brass internals and aluminum dial.