Flow-Control

Stainless Steel with Teflon Glass

Odoo • Image and Text
Odoo • Image and Text

Stainless Steel with Teflon Glass

  • Features

  • Vessel Connection Sizes: 1/4" NPT up to 1" Flanged
  • Auto Ball Checks
  • For Glass Tube or Shielded Gauges
  • Ratings

  • Pressure Ratings are subject to the limitations of the gauge glass (Glass)
  • Temperature Ratings are subject to the limitations of the packing (Glass).
  • Materials

  • Body: 316 Stainless Steel
  • Glass Packing: Teflon®*
  • Stem Packing: Graphite Composite
  • Stem Packing for 436: Teflon®* /Hypolon

A Special Note About Corrosion

  • Excessive corrosion may result in leakage, glass breakage, and premature valve failure.
  • Be sure all wetted components of the gauge are constructed with materials compatible with the service medium. John C. Ernst Co. does not make chemical compatibility recommendations.
  • See the "Compass Corrosion Guide" or equivalent for material compatibility

Model 455 has an integral bonnet and stem seat.
Model 457 has a union bonnet for stem seat replacement.
Model 436 not all 316SS wetted parts.

Model Size NPT Glass OD Glass Length from Centers Rod Length from Centers
436-04 1/2" 5/8" - 2" - 1"
436-05 3/4" 3/4" - 2" - 1"
446-04 1/2" 5/8" - 2" - 1"
446-05 3/4" 3/4" - 2" - 1"
455-04 1/2" 5/8" - 1-3/4" - 2-1/4"
455-05 3/4" 3/4" - 1-3/4" - 2-1/4"
455-06 1" 3/4" - 1-3/4" - 2-1/4"
457-04 1/2" 5/8" - 1-3/4"
- 2-1/4"
457-05 3/4" 3/4" - 1-3/4" - 2-1/4"
457-06 1" 3/4" - 1-3/4" - 2-1/4"
Model Maximum Liquid Pressure @ Temp PSIG / °F Steam Service PSIG Auto Ball Checks
436 500/100°F to 500/425°F 500 ASME
446 500/100°F to 500/425°F 500 Yes
455 600/100°F to 345/400°F 345 Yes
457 600/100°F to 345/400°F 345 Yes

For Glass.
For Shielded Gauges.
*Teflon® is a registered trademark of DuPont

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