2.5 Inch Pressure Gauge Types Oil Filled Refrigerant Pressure Gauge With Front Flange
63mm Oil Filled Refrigerant Pressure Gauge | Front Flange Mount HVAC Air Conditioning System Gauge 2.5 Inch
Product Overview
The 63mm oil filled refrigerant pressure gauge is designed for HVAC and refrigeration system diagnostics where stable pressure reading is required under compressor vibration and refrigerant cycling conditions.
Refrigeration System Measurement Context
In HVAC systems, pressure behavior varies depending on refrigerant phase changes, compressor load, and ambient temperature. This gauge is designed to support stable monitoring during key operations such as:
- Refrigerant charging and recovery
- System evacuation and vacuum testing
- Compressor discharge and suction pressure monitoring
- Leak detection and service diagnostics
Compatible refrigerants include R134a, R410A, R404A and similar HVAC working media.
Technical Specifications
| Parameter | Description |
|---|---|
| Nominal Size | 63mm / 2.5 inch |
| Pressure Range | HVAC refrigeration calibrated range (low / medium pressure variants) |
| Connection Type | 1/4" SAE / BSP / NPT |
| Mounting Type | Front flange panel mount |
| Case Material | 304 stainless steel |
| Wetted Parts | Brass / copper alloy |
| Fill Medium | Glycerin / silicone oil |
| Scale Type | Bar / PSI dual scale (HVAC standard) |
Application Fields
- Air conditioning system installation and maintenance
- Refrigeration compressor pressure monitoring
- Cold storage system diagnostics
- Heat pump system commissioning
- HVAC service manifold kits
- Industrial cooling cycle control systems
- Refrigerant recovery and charging operations
- Building HVAC system maintenance
FAQ
Why is oil filling used in refrigeration pressure gauges?
It stabilizes the pointer movement by reducing vibration caused by compressor operation and refrigerant pulsation.
What is the advantage of front flange mounting?
It allows direct installation on HVAC panels and service equipment without requiring rear installation space.
Can this gauge be used in outdoor HVAC units?
Yes, stainless steel housing and sealed structure provide protection against humidity and environmental exposure.
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