FLAT GLASS GAUGES - LOW PRESSURE
Flat Glass Gauges - Low Pressure
These gauges are designed for less demanding process conditions that maximize the mechanical and economical advantages of ductile iron covers.
These gauges are not recommended for Steam/Water applications. (See Gauges).
Model 479 Reflex - has a single vision slot on one side of the chamber in which light can enter to determine liquid level. Above the liquid level, glass prisms reflect the surrounding light giving typically a silvery appearance. Below the level, the liquid fills the prisms causing the glass to become relatively transparent giving a typically dark appearance.
Model 489 Transparent - has a vision slot on both sides of the chamber allowing light to enter the gauge opposite the observer so that the level or the liquid and its characteristics can be seen.
-
Features
- Armored Design
- Reflex and Transparent Design
- Maximum Protection
- Conforms to AISI/ASTM Specs
- Up to 12 Feet Long
- 10 Section Maximum
- 1/2"NPT Female Ends (std)
-
Ratings
- Pressures up to 2400 PSIG
- Temperatures up to 650°F
-
Materials
- Chamber: Carbon Steel 316LSS(Opt.)
- Covers: Ductile Iron
- Glass: Tempered Borosilicate
- Gaskets/Cushions: Grafoil GHP
| Pressure Range for Glass Sizes in PSIG with Std. Gaskets | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Model | Temp | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| 479 | 100°F | 2400 | 2325 | 2250 | 2175 | 2100 | 2025 | 1950 | 1875 | 1800 |
| 479 | 600°F | 1780 | 1720 | 1670 | 1600 | 1550 | 1500 | 1440 | 1390 | 1340 |
| 489 | 100°F | 2000 | 1815 | 1630 | 1440 | 1250 | 1065 | 875 | 690 | 500 |
| 489 | 600°F | 1480 | 1340 | 1210 | 1060 | 920 | 790 | 645 | 510 | 370 |
Temperatures up to 650°F with Aluminosilicate Glass
| Models | Glass Size | Overall Length | Length Of Visible Glass | Minimum Centers if using the following Valve | |||||
|---|---|---|---|---|---|---|---|---|---|
| Reflex | Transparent | Rigid Gauge | Union Gauge | # of Sectns | |||||
|
450 460 |
498 |
450 460 |
498 | ||||||
| 479R11 | 489T11 | 1 | 5-1/4 | 3-3/4 | 8-1/8 | 9-7/8 | 11-1/8 | 11-7/8 | |
| 479R12 | 489T12 | 2 | 6-1/4 | 4-3/4 | 9-1/8 | 10-7/8 | 12-1/8 | 12-7/8 | |
| 479R13 | 489T13 | 3 | 7-1/4 | 5-3/4 | 10-1/8 | 11-7/8 | 13-1/8 | 13-7/8 | |
| 479R14 | 489T14 | 4 | 8-1/4 | 6-3/4 | 11-1/8 | 12-7/8 | 14-1/8 | 14-7/8 | |
| 479R15 | 489T15 | 5 | 9-3/8 | 7-7/8 | 12-1/4 | 14 | 15-1/4 | 16 | 1 |
| 479R16 | 489T16 | 6 | 10-5/8 | 9-1/8 | 13-1/2 | 15-1/4 | 16-1/2 | 17-1/4 | |
| 479R17 | 489T17 | 7 | 11-3/4 | 10-1/4 | 14-5/8 | 16-3/8 | 17-5/8 | 18-3/8 | |
| 479R18 | 489T18 | 8 | 13-3/8 | 11-7/8 | 16-1/4 | 18 | 19-1/4 | 20 | |
| 479R19 | 489T19 | 9 | 14-1/8 | 12-5/8 | 17 | 18-3/4 | 20 | 20-3/4 | |
| 479R24 | 489T24 | 4 | 16-1/2 | 15 | 19-3/8 | 21-1/8 | 22-3/8 | 23-1/8 | |
| 479R25 | 489T25 | 6 | 18-3/4 | 17-1/4 | 21-5/8 | 23-3/8 | 24-5/8 | 25-3/8 | |
| 479R26 | 489T26 | 6 | 21-1/4 | 19-3/4 | 24-1/8 | 25-7/8 | 27-1/8 | 25-7/8 | 2 |
| 479R27 | 489T27 | 7 | 23-1/2 | 22 | 26-3/8 | 28-1/8 | 29-3/8 | 30-1/8 | |
| 479R28 | 489T28 | 8 | 26-3/4 | 25-1/4 | 29-5/8 | 31-3/8 | 32-5/8 | 33-3/8 | |
| 479R29 | 489T29 | 9 | 28-1/4 | 26-3/4 | 31-1/8 | 32-7/8 | 34-1/8 | 34-7/8 | |
| 479R36 | 489T36 | 6 | 31-7/8 | 30-3/8 | 34-3/4 | 36-1/2 | 37-3/4 | 38-1/2 | |
| 479R37 | 489T37 | 7 | 35-1/4 | 33-3/4 | 38-1/8 | 39-7/8 | 41-1/8 | 41-7/8 | 3 |
| 479R38 | 489T38 | 8 | 40-1/8 | 38-5/8 | 42 | 44-3/4 | 46-1/8 | 46-3/4 | |
| 479R39 | 489T39 | 9 | 42-3/8 | 40-7/8 | 45-1/4 | 47 | 48-1/4 | 49 | |
| 479R47 | 489T47 | 7 | 47 | 45-1/2 | 49-7/8 | 51-5/8 | 52-7/8 | 53-5/8 | |
| 479R48 | 489T48 | 8 | 53-1/2 | 52 | 56-3/8 | 58-1/8 | 59-3/8 | 60-1/8 | 4 |
| 479R49 | 489T49 | 9 | 53-1/2 | 55 | 59-3/8 | 61-1/8 | 62-3/8 | 63-1/8 | |
| For Gauges of 5 to 10 Sections consult Sales Office | |||||||||
For Notes about Corrosion: (See Gauges)