Pressure Rating at º F*
Low Pressure Gauge** |
Glass Size |
100º |
200º |
300º |
400º |
500º |
600º |
700º |
1 |
2400 |
2320 |
2240 |
2150 |
2000 |
1780 |
1520 |
2 |
2325 |
2250 |
2170 |
2090 |
1940 |
1720 |
1470 |
3 |
2250 |
2180 |
2100 |
2020 |
1880 |
1670 |
1420 |
4 |
2175 |
2100 |
2020 |
1940 |
1820 |
1600 |
1370 |
5 |
2100 |
2030 |
1960 |
1880 |
1750 |
1550 |
1320 |
6 |
2025 |
1950 |
1890 |
1810 |
1680 |
1500 |
1280 |
7 |
1950 |
1890 |
1820 |
1750 |
1630 |
1440 |
1230 |
8 |
1875 |
1820 |
1750 |
1680 |
1560 |
1390 |
1180 |
9 |
1800 |
1740 |
1680 |
1620 |
1510 |
1340 |
1140 |
Mid Pressure Gauge** |
Glass Size |
100º |
200º |
300º |
400º |
500º |
600º |
700º |
1 |
3000 |
2900 |
2800 |
2690 |
2500 |
2220 |
1890 |
2 |
2910 |
2820 |
2720 |
2600 |
2420 |
2150 |
1840 |
3 |
2820 |
2720 |
2625 |
2530 |
2350 |
2080 |
1780 |
4 |
2725 |
2640 |
2560 |
2460 |
2270 |
2040 |
1740 |
5 |
2630 |
2540 |
2460 |
2360 |
2190 |
1950 |
1660 |
6 |
2535 |
2450 |
2360 |
2270 |
2110 |
1875 |
1600 |
7 |
2440 |
2360 |
2280 |
2190 |
2030 |
1805 |
1540 |
8 |
2345 |
2270 |
2190 |
2110 |
1960 |
1740 |
1480 |
9 |
2250 |
2180 |
2100 |
2020 |
1880 |
1670 |
1420 |
High Pressure Gauge** |
Glass Size |
100º |
200º |
300º |
400º |
500º |
600º |
700º |
ALL |
4000 |
3890 |
3790 |
3700 |
3470 |
3080 |
2530 |
* Gates for service to 800° F are available. Consult the factory for the application and ratings.
* Glass-Trac standard gauge glass is made of borosilicate glass, good to 600 degrees F. For temperatures exceeding 600, aluminosilicate glass can be supplied up to 800 degrees F. Above 800 degrees F consult factory.
** Saturated steam to 300 WSP. Above 300 WSP, use transparent gauge with mica shields.
* Longer extensions for lower temperatures are available. Contact Sales.
Part |
Low Pressure Series |
Medium Pressure Series |
High Pressure Series |
Chamber |
Carbon Steel A-108 1018 |
Stainless Steel ASTM 276 316L |
Carbon Steel A-108 1018 |
Stainless Steel ASTM 276 316L |
Carbon Steel A-108 1018 |
Stainless Steel ASTM 276 316L |
Gasket |
Garlock IFG 5500 |
Garlock IFG 5500 |
Garlock IFG 5500 |
Glass |
Tempered Borosilicate |
Tempered Borosilicate |
Tempered Borosilicate |
Cushion |
Garlock IFG 5500 |
Garlock IFG 5500 |
Garlock IFG 5500 |
Cover |
Carbon Steel A-108 1018 |
Stainless Steel ASTM 276 316L |
Carbon Steel A-108 1018 |
Stainless Steel ASTM 276 316L |
Carbon Steel A-108 1018 |
Stainless Steel ASTM 276 316L |
Bolt/U-Bolt |
Carbon Steel ASTM A 193 Grade B7 Rust Proof |
Carbon Steel ASTM A 193 Grade B7 Rust Proof |
Carbon Steel ASTM A 193 Grade B7 Rust Proof |
Nut |
Carbon Steel ASTM A 194 2H |
Carbon Steel ASTM A 194 2H |
Carbon Steel ASTM A 194 2H |
Gasket Temperature Ratings
Gasket Material |
Minimum Temperature |
Maximum Temperature |
Rating Factor |
Garlock IFG® -5500 |
-40°F (-40°C) |
550°F (288°C) |
100% |
25% Glass Filled TFE |
-328°F (-200°C) |
500°F (260°C) |
100% |
Grafoil® |
-328°F (-200°C) |
800°F (426°C) |
100% |
PCTFE (Kel-F®) Shield |
-400°F (-268°C) |
302°F (150°C) |
50% |
Glass Temperature Ratings
Glass Type |
Temperature Rating |
Borosilicate |
Up to 600°F (316°C) |
HP Borosilicate |
Up to 600°F (316°C) |
Aluminosilicate |
Up to 800°F (426°C) |