FLOW CONTROL
STAINLESS STEEL WITH TEFLON GLASS
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
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Ratings
- Pressure Ratings are subject to the limitations of the gauge glass (Glass)
- Temperature Ratings are subject to the limitations of the packing (Glass).
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Materials
- Body: 316 Stainless Steel
- Glass Packing: Teflon®*
- Stem Packing: Graphite Composite
- Stem Packing for 436: Teflon®* /Hypalon
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 |