Product details
Product Description
The HARBAX HOPG-63mm Oil Pressure Gauge is designed for accurate and stable pressure monitoring in HVAC and refrigeration systems, especially where panel mounting and clean installation layouts are required.
Featuring a 63mm dial size with back connection, this gauge is ideal for control panels and enclosed systems, ensuring organized installation and professional appearance. Constructed with AISI 304 stainless steel casing and glycerine-filled plexiglass window, it offers durability, vibration resistance, and long-term reliability.
Available in low-pressure (0–250 psi) and high-pressure (0–550 psi) variants, it provides flexibility for different system requirements. The phosphor bronze sensing element and brass internal movement ensure accurate readings and consistent performance.
This gauge is engineered for precise monitoring, system protection, and improved compressor reliability, making it ideal for professional HVAC applications.
Technical Specifications
- Model: HOPG-63mm
- Dial Size: 63 mm
- Connection Size: 1/4″ SAE
- Connection Type: Back Connection
- Pressure Range:
- Low: 0 – 250 psi
- High: 0 – 550 psi
- Case: AISI 304 Stainless Steel
- Ring: AISI 304 Stainless Steel (Polished)
- Window: Plexiglass (Glycerine Filled)
- Elastic Element: Phosphor Bronze
- Movement: Brass (OT 59)
- Accuracy: Class 1.6
- Ambient Temperature: +15°C to +65°C
- Max Process Fluid Temp: +65°C
- Max Working Pressure: 75% of full scale
- Over Pressure Limit: 25% of full scale
- Blow-Out: EPDM
FAQs
Q1: Where is this gauge typically installed?
It is mainly used in control panels and enclosed HVAC systems.Q2: What pressure ranges are available?
Available in 0–250 psi (low pressure) and 0–550 psi (high pressure) options.Q3: What type of connection does it use?
It comes with a 1/4″ SAE back connection, ideal for panel mounting.Q4: Is it suitable for industrial applications?
Yes, it is suitable for HVAC, refrigeration, and industrial machinery.Q5: Does it provide stable readings?
Yes, the glycerine-filled window reduces vibration effects, ensuring stable readings.Q6: What makes this gauge reliable?
Its stainless steel construction, phosphor bronze element, and precision mechanism ensure long-term performance.






