Sanhua Indic

Sight Glass SYJ

Spare parts - Sight Glass



Sight glasses are installed after the filter drier in liquid line of refrigerating systems, in order to observe property changes of the refrigerant (liquid/vapor) and to indicate the moisture level by colors.


  • High precision color indicator
  • Indicator pasted closely to the glass to prevent surface contamination
  • Solid and corrosion resistant brass material
  • Good readability due to high clear sight glass of wide angle
  • Sealing of low creep PTFE to ensure leakage free performance


  • Applicable for all common HCFC and HFC refrigerants such as: R22, R134a, R404A, R407C, R410A, R507A…
  • Ambient temperature min./max.: -50°C / +80°C
  • Medium temperature TS min./max.: -50°C / +80°C
  • Installation position:
    • Liquid and suction line
    • Preferably in vertical lines, recommended position for horizontal lines is upwards without inclination in any direction
  • Declaration according to PED

Drawing SAE version


Drawing ODS version




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