Dwyer 550 Series Sight Window
Dwyer 550 Series Sight Window

Dwyer 550 Series Sight Window

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Dwyer 550 Series Sight Window is a range of glass with plated steel body sight windows which display level or contents of tanks or pipelines. Connections are standard NPT in sizes ranging from 1/4 to 2″. Shows Level or Contents of Tanks, Pipelines; Fused Glass and Steel Construction

Innovative product designs have been recognized by industry experts, including ACHR Dealer Design Awards in the Testing and Monitoring category for 2014 and 2015. Dwyer has invested in state of the art research and development facilities for best in class product testing and verification. Dwyer has a long history of innovation in designing and manufacturing our own measurement sensors that provide superior product performance.

Most importantly, we value the expertise and skill of the people that use our products in the field every day. We respect that our customers have a choice and we are honored that they choose the best products, manufactured by Dwyer, as a reflection of their own high standards in delivering the highest level of quality, and reliability.

Dwyer 550 Series Sight Window 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


  • Hydraulic tanks
  • Pressure vessels
  • Coolant tanks
  • Hydraulic lines
  • Oil reservoirs
Another Article:

Dwyer 550 Series Sight Window Specification

Service Compatible gases and liquids.
Wetted Materials Window: glass; Body: plated steel.
Temperature Limit 200°F (93°C).
Pressure Limit 125 psig (8.6 bar).
Connections 1/4″ to 2″ male NPT.

Download Data Sheet: Sight Flow Indicator Series 550 Sight Window

Ref: dwyer-inst.com

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