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SG Refrigeration Sight Glass Moisture Indicator

1.This SG sight glass is installed on the liquid pipeline of refrigeration systems to observe the real-time flow state of internal refrigerant. 
2.It is equipped with a built-in sensitive moisture indicator disc, which changes color to reflect the water content of refrigerant accurately.
3.It supports multiple connection specifications including flare and solder types, with a maximum working pressure of 35bar and wide applicable temperature range.

    Core Functions

    1.The transparent observation window allows direct viewing of refrigerant flow; bubbles in the fluid indicate insufficient refrigerant or poor subcooling effect.
    2.The built-in moisture indicator turns green when the refrigerant is dry and yellow when excessive moisture exists, reminding users to replace filter driers in time.
    3.It can monitor the flow state of lubricating oil in the oil separator return pipeline to protect the refrigeration compressor from corrosion damage caused by moisture.

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    Product Advantages

    1.Adopts high-strength brass valve body and explosion-proof crimp sealing structure, featuring excellent pressure resistance and leakproof performance.
    2.Compatible with mainstream refrigerants such as R134a, R407C and R410A, matching various refrigeration lubricants.
    3.Multiple size options from 1/4" to 3/4", supporting flare threaded connection and solder welding connection for quick installation.
    4.Stable performance under -50℃~+110℃ medium temperature, long service life and easy later inspection and maintenance.

    Technical parameters

    型号 Type

    Port size

    Connection size

    产品代码 Code

    SG2F

    1/4" Flare

    7/16"-20UNF

    OK109

    SG3F

    3/8" Flare

    5/8"-18UNF

    OK110

    SG4F

    1/2" Flare

    3/4"-16UNF

    OK111

    SG5F

    5/8" Flare

    7/8"-14UNF

    OK112

    SG6F

    3/4" Flare

    1-1/16"-14UNF

    OK113

    SG2S

    1/4" Solder

    6.35

    OK114

    SG3S

    3/8" Solder

    9.52

    OK115

    SG4S

    1/2" Solder

    12.7

    OK116

    SG5S

    5/8" Solder

    15.88

    OK117

    SG6S

    3/4" Solder

    19.05

    OK118

    SG7S

    7/8" Solder

    22.22

    OK119

     

    Application Scope

    This SG sight glass is widely applied in all kinds of refrigeration and HVAC equipment, including cold storage units, central air conditioners, heat pumps, VRF air conditioning systems and transport refrigeration units. 
    It is also suitable for refrigeration pipelines of wine cellars, precision cooling equipment and commercial refrigerated display cabinets. 
    It is an essential accessory for real-time monitoring of pipeline working conditions in refrigeration engineering, oil pipeline refrigeration systems and marine refrigeration equipment.

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    Certificates

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