Penberthy Models TSL, TSL-F, TSM, TSM-F and STM SteamWater Flat Glass Gages

Designed for low and high pressure boilers in all industries

Designed to expand and contract during dynamic thermal cycling, steam water gages incorporate extra heavy construction, Belleville washers and mica shield working together to minimize the effects of the thermally induced stresses. These gages provide direct visual indication and are used in low and high pressure boilers in all industries.


  • Belleville washer on all gages provide improved sealing.
  • Mica shields protect glass from steam etching. 
  • Stuffing box nipple or flanged connection. 
  • Expansion loops minimize effects of thermal cycling. 
  • Conforms to ASME/ASTM specifications.

Click here to explore our extensive resource library.

Penberthy Logo
Education Courses

Keep up to date with our training opportunities. View the course catalog.

Spartan Controls 2016 Education Course Calendar
Call To Action
Reach a Spartan Expert
Call To Action
Close x
Close x