Copper Sight Glass Indicator Heat Exchange and Refrigeration Parts
Brass Sight Indicator for Air Conditioner
Product Description
The Copper Sight Glass Indicator is an essential component in air conditioning and refrigeration
systems. It allows users to visually monitor the refrigerant flow and moisture condition within the system, ensuring optimal performance and preventing
damage caused by excessive moisture or refrigerant shortage.
Made from premium-grade brass or copper with a high-transparency glass window, this sight glass offers excellent durability, corrosion resistance, and clear visual
indication. It features a color-changing moisture indicator that helps maintenance personnel quickly identify the
refrigerant’s condition — green indicates a dry system, while yellow indicates moisture presence.
This product is suitable for a wide range of refrigerants,
including R22, R134a, R404A, R407C, R410A, and R32, and is widely used in air conditioners, heat pumps, cold storage, and commercial
refrigeration systems.
Product Attributes
| Attribute | Description |
|---|
| Product Name | Copper / Brass Sight Glass Indicator |
| Model | Customizable (Standard models available) |
| Material | High-quality Brass or Copper Body with Tempered Glass Window |
| Function | Visual inspection of refrigerant flow and moisture status |
| Indicator Type | Color moisture indicator (Green = Dry, Yellow = Wet) |
| Compatible Refrigerants | R22, R134a, R404A, R407C, R410A, R32, etc. |
| Operating Pressure | 3.0 – 4.5 MPa (varies by size) |
| Operating Temperature | -40°C to +120°C |
| Connection Type | Solder / Flare / Threaded Connection |
| Application | Air Conditioner, Heat Pump, Cold Room, Chiller, Compressor Unit |
| Surface Finish | Natural Brass or Nickel-Plated Surface |
| Features | Corrosion-resistant, High Transparency, Long Service Life |
| Standard Certification | CE / ISO9001 / RoHS |
| Size Options | 1/4", 3/8", 1/2", 5/8", or customized |
| Installation Orientation | Vertical or Horizontal |
| Packaging | Standard Export Carton or Customized Label |
| Warranty | 12 Months |
| OEM/ODM | Available |
Key Advantages
Clear Visual Monitoring – Easy detection of refrigerant condition and moisture level.
Durable Brass Body – Ensures long lifespan and stable sealing performance.
Wide Refrigerant Compatibility – Works with all major refrigerant types.
Accurate Moisture Indicator – Color changes clearly show system dryness or humidity.
Easy Installation – Available in multiple connection types for flexible system use.
Applications
Commercial and household air conditioners
Refrigerated trucks and cold storage units
Heat pump systems
Compressor and condenser units
HVAC and industrial cooling equipment
Product Overview
This brass sight glass indicator is widely trusted by HVAC technicians and system manufacturers
worldwide. With its robust build, precision design, and reliable indicator accuracy, it is a cost-effective and durable solution for system monitoring and preventive maintenance.
