Liquid Level Controls- Sight Glass SG1

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The liquid level sight glass SG1 provides a clear indication of liquid levels in industrial and commercial refrigeration systems.

  • When viewing the SG1 Sight Glass, refrigerant liquid levels rise in the viewing area of the reflex lens, the color of the lens will turn dark. As the level decreases the color of the lens lightens. The housing is made from ASME SA36 and meets material requirements of ASME for direct welding to vessel. The reflex lens is made from a clear boro-silicon tempered glass rated for refrigerant use.

    Markets:
    • Industrial Refrigeration
    • Commercial Refrigeration

    Features and Benefits:
    • Suitable for ASME Applications
    • Min fluid temperature -50C (-60F)
    • Max fluid temperature 115C (240F)
    • Reflex lens
    • Frost shield available

    Applications:
    • Indicates liquid levels in various vessels and stand-pipes


Performance Characteristics  
Model Number
Please Configure Part for Model Number
Minimum Fluid Temperature (C)
-50°C
Minimum Fluid Temperature (F)
-60°F
Maximum Fluid Temperature (C)
115°C
Maximum Fluid Temperature (F)
240°F
Maximum Pressure (bar)
27 or 31
Maximum Pressure (psig)
400 to 450
Length
2″, 4″, and 4″ x 2-3/8″
Mounting
Standard or Saddle Mount
Material
Standard or PED/SEP

Performance Characteristics  
Model Number
Please Configure Part for Model Number
Minimum Fluid Temperature (C)
-50°C
Minimum Fluid Temperature (F)
-60°F
Maximum Fluid Temperature (C)
115°C
Maximum Fluid Temperature (F)
240°F
Maximum Pressure (bar)
27 or 31
Maximum Pressure (psig)
400 to 450
Length
2″, 4″, and 4″ x 2-3/8″
Mounting
Standard or Saddle Mount
Material
Standard or PED/SEP

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