Sight glasses
Sight glasses are used to give a clear visual indication of refrigerant condition, flow condition, moisture status, liquid level, or oil level in refrigeration systems. In cold room applications, they help installers and service technicians check system condition directly in the refrigeration circuit and identify issues such as moisture, lack of subcooling, or refrigerant deficiency.
This category is built around high-pressure sight glasses and includes versions with and without moisture indicators, depending on the application's need. Beyond cold rooms, sight glasses are also used in chillers, heat pumps, transport refrigeration, food retail refrigeration, and broader refrigeration and air-conditioning systems.
Features and benefits
- Good visibility to indicate flow conditions
- Low leakage and long service life
- Extra safety with maximum working pressure up to 52 bar
- Available with flare, solder, and socket connections
- Available with and without moisture indicators
- Moisture-indicator versions provide an early warning when moisture content becomes critical
- Large viewing window supports accurate identification of system conditions
- Supports visual checking of refrigerant condition, liquid level, and oil level depending on the product type and installation position
- Fast react indicator provides early warning to prevent excessive liquid
Sight glasses
Danfoss SGP is a series of sight glasses for high pressure applications. SGP is available in versions optimized for refrigerants with mineral oil e.g. HCFC, and in versions optimized for non-flammable HFC refrigerants.
SGP for food retail refrigeration is available with flare, solder and socket connections, and with and without moisture indicators.
Product Highlights
- Good visibility to indicate flow conditions
- Low leakage
- Long service life
- Extra safety with MWP 52 bar
- Reliability of products ensures less leakage and long life time
- Fast react indicator provides early warning to prevent excessive liquid
Application Development Centers
Partner up with us to prepare for the future. At our global Application Development Centers we offer a collaborative environment with expert support and state-of-the-art test facilities for refrigeration and air conditioning. We are Engineering Tomorrow. Together. Today.
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Software: The truth is Cool(selector®2)
Coolselector®2 features unbiased calculations for the selection of refrigeration and air conditioning components based on the user’s requirements or based on standard operating conditions.
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Learn more about SGP sight glasses
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