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Fused glass style sight windows feature glass to metal bond for utmost reliability. Plated steel bodies have convenient hex wrench surfaces. 

Connections are standard NPT in sizes from 1/4" to 2". Windows are clear, ripple free, and flush with the front face, having no recess on which dirt might collect.
Features
  • Glass to metal bond for utmost reliability
  • Plated steel bodies have convenient hex wrench surfaces for easy installation
  • Windows are clear, ripple free, and flush with the front face, with no recess on which dirt might collect

1 - 8 of 8 Part Numbers
SFI-550-1
SFI-550-1
DWYER Sight Window, 1" Male NPT.
  • Size - 1" Male NPT
SFI-550-1-1/2
SFI-550-1-1/2
DWYER Sight Window, 1-1/2" Male NPT.
  • Size - 1-1/2" Male NPT
SFI-550-1-1/4
SFI-550-1-1/4
DWYER Sight Window, 1-1/4" Male NPT.
  • Size - 1-1/4" Male NPT
SFI-550-1/2
SFI-550-1/2
DWYER Sight Window, 1/2" Male NPT.
  • Size - 1/2" Male NPT
SFI-550-1/4
SFI-550-1/4
DWYER Sight Window, 1/4" Male NPT.
  • Size - 1/4" Male NPT
SFI-550-2
SFI-550-2
DWYER Sight Window, 2" Male NPT.
  • Size - 2" Male NPT
SFI-550-3/4
SFI-550-3/4
DWYER Sight Window, 3/4" Male NPT.
  • Size - 3/4" Male NPT
SFI-550-3/8
SFI-550-3/8
DWYER Sight Window, 3/8" Male NPT.
  • Size - 3/8" Male NPT
1 - 8 of 8 Part Numbers

Specifications

Enclosure, Body Material

  • Plated Steel

Maximum System Pressure

  • psig: 125 (kPa: 861.8, bar: 8.6)

Media

  • Compatible Gases
  • Compatible Liquids

NPT Connection

  • 1” NPT Male
  • 1/2” NPT Male
  • 1/4” NPT Male
  • 1-1/2” NPT Male
  • 1-1/4” NPT Male
  • 2” NPT Male
  • 3/4” NPT Male
  • 3/8” NPT Male

Temperature Range

  • 93° C (200° F)

Window Material

  • Glass

  • Hydraulic Tanks
  • Pressure Vessels
  • Coolant Tanks
  • Hydraulic Lines
  • Oil Reservoirs

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