Parker psg-9s Sight Glass Moisture Indicator 1-1/8 Inches Odf

Product Description

The Parker PSG-9S is a sight glass moisture indicator designed for use in refrigeration and air conditioning systems. It connects to the liquid line using a 1-1/8 inches ODF (Outside Diameter Flare) sweat connection, making it compatible with standard copper tubing used throughout commercial and residential HVAC-R installations. HVAC technicians and refrigeration mechanics rely on sight glass moisture indicators to quickly assess the condition of refrigerant in a system without opening the refrigerant circuit. The PSG-9S allows a technician to visually check for two critical system conditions: the presence of moisture and whether the refrigerant flow is steady or contains bubbles. A moisture-indicating element inside the sight glass changes color based on the moisture content of the refrigerant. A green color typically indicates a dry, acceptable moisture level, while a yellow color signals that moisture has entered the system and corrective action is needed. Excess moisture in a refrigerant circuit can cause acid formation, compressor damage, and freeze-up at the expansion valve. Catching moisture early with a reliable indicator like the PSG-9S helps prevent costly system failures. The sight glass also lets the technician check refrigerant charge. Bubbles in the sight glass during steady operation can indicate a low refrigerant charge or a restriction in the liquid line. This dual-function visibility makes the PSG-9S a practical diagnostic tool on every service call. The 1-1/8 inches ODF connection size suits larger tonnage equipment such as commercial rooftop units, chillers, and large split systems. Proper installation requires clean, deburred copper tubing and standard brazing practices to ensure a leak-free joint.

• Sight glass with built-in moisture indicator for dual-function refrigerant system diagnostics
• 1-1/8 inches ODF sweat connection compatible with standard copper tubing and brazing methods
• Color-changing moisture element provides immediate visual alert to system moisture contamination

Product Highlights

The Parker PSG-9S gives HVAC-R technicians a fast, reliable way to monitor refrigerant moisture levels and charge status in larger commercial systems. Its 1-1/8 inches ODF connection fits standard copper liquid lines and installs using conventional brazing techniques.

Product Information

Standard Information

• Brand: PARKER
• Manufacturer Part Number: PSG-9S

Technical Specifications

• Product Type: Moisture Indicator
• Connection Size: 1-1/8 inches
• Connection Type: ODF