Model RLG-OB Obround Sightglass
Model RLG-OB Obround Sightglasses allow for maximum viewing of vessel or tank contents. These units conform to ASME code requirements and are manufactured using ASME acceptable materials.
The lower weld pad is available with a cylindrical or spherical radius to match the tank or vessel wall.
Standard lens material is Tempered Borosilicate and Tempered Soda Lime. Higher temperature material such as Vycor or Quartz is available.
Standard pressure ratings to 150 psig, higher ratings available to meet your requirements.
Standard Sizes Include:
- 1 x 6
- 2 x 12
- 2 x 18
- 3 x 12
- 3 x 18
- 4 x 12
- 4 x 18
- 4 x 24
Other sizes are available and engineered for your special requirements.
| MODEL | A | B | C | D | T | MAXIMUM PRESSURE |
| RLG-OB-1 X 6 | 3.62″ | 1″ | 6″ | 8.62″ | 1.25″ | 150 PSIG |
| RLG-OB-2 X 12 | 5″ | 2″ | 12″ | 15″ | 1.25″ | 150 PSIG |
| RLG-OB-2 X 18 | 5″ | 2″ | 18″ | 21″ | 1.25″ | 150 PSIG |
| RLG-OB-3 X 12 | 6″ | 3″ | 12″ | 16″ | 1.25″ | 150 PSIG |
| RLG-OB-3 X 18 | 6″ | 3″ | 18″ | 22″ | 1.25″ | 150 PSIG |
| RLG-OB-4 X 12 | 7″ | 4″ | 12″ | 17″ | 1.25″ | 150 PSIG |
| RLG-OB-4 X 18 | 7″ | 4″ | 18″ | 23″ | 1.25″ | 150 PSIG |
| RLG-OB-4 X 24 | 7″ | 4″ | 24″ | 29″ | 1.50″ | 150 PSIG |