Description
Overview
The Parker-Sporlan PSG-3S is a high-quality refrigeration sight glass designed for use in liquid line refrigerant systems. With a 3/8″ ODF sweat connection, this sight glass allows technicians to visually monitor refrigerant flow and detect moisture or flash gas conditions quickly and accurately — a critical step in maintaining system efficiency and preventing compressor damage.
Key Features
- 3/8″ ODF (Outside Diameter Flare/Sweat) connection for easy installation into copper liquid lines
- Clear viewing window for direct visual inspection of refrigerant flow and condition
- Compact, inline design suitable for a wide range of residential and light commercial HVAC/R applications
- Durable construction engineered to withstand typical refrigeration system operating pressures and temperatures
- Compatible with common refrigerants used in modern HVAC/R systems
- Parker-Sporlan quality manufacturing for long service life and leak-tight performance
Application
The PSG-3S sight glass is installed in the liquid line of a refrigeration or air conditioning system, typically downstream of the filter drier and upstream of the expansion device. It provides a quick visual check for:
- Refrigerant charge level — bubbles indicate a low charge or restriction
- Moisture presence — color-indicating moisture indicator (if equipped) changes color when moisture is detected
- System cleanliness and overall refrigerant condition
Product Details
- Brand: Parker-Sporlan
- Model: PSG-3S
- SKU: 700132-002
- Connection Size: 3/8″ ODF
- Connection Type: Sweat (ODF)
- Application: Refrigeration / Air Conditioning Liquid Line
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