Flow sight glass type 550A nominal size 150/300 lbs
Flow sight glass with flange connections suitable for ASME B 16.5
Flow sight glass Class 150 | 300 lbs
- ½“
- ¾“
- 1 ¼“
- 1 ½“
- 2 ½“
- 3“
- 4“
- 5“
- 6“
- 8“
- 150 lbs
- 300 lbs
- 80°C
- 130°C
- 150°C
- 175°C
- 180°C
- 200°C
- 280°C
- 300°C
- Wiper SGW with PTFE, silicone or EPDM wiper blade
- LED light, for Ex and non-Ex areas
- Spraying device
- FEP or Halar® coating
- Mica discs
- PTFE rotor
- Oil- and grease-free design
- Silicone-free design including crater test
NPS 1/2" – 2" rectangular flanges
NPS 2 1/2" – 8" circular flanges
Quick overview
1/2" - 8"
Cross-section
drawing
| NPS | 1/2“ | 3/4“ | 1“ | 1 1/4“ | 1 1/2“ | 2“ | 2 1/2“ | 3“ | 4“ | 5“ | 6“ | 8“ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| D (Class 150) | 89 | 98 | 108 | 118 | 127 | 152 | 178 | 191 | 228 | 254 | 279 | 343 |
| D (Class 300) | 95.2 | 117.3 | 123.8 | 133.4 | 155.6 | 165.1 | 190.5 | 209.6 | 254 | 279.4 | 317.5 | 381 |
| BL | 130 | 150 | 160 | 180 | 200 | 230 | 290 | 310 | 350 | 400 | 480 | 600 |
| D1 | 32 | 32 | 48 | 48 | 65 | 80 | 80 | 100 | 125 | 150 | 175 | 175 |
| Flange connections compatible with counter flanges according to ASME B 16.5 | ||||||||||||
Product information
The ACI flow sight glass type 550A is a robust sight glass for industrial applications. The body is made from high-quality stainless steel casting 1.4408, which ensures excellent corrosion resistance as well as high mechanical strength. The design is intended for installation between flanges according to ASME B 16.5 and allows the visual monitoring of media in pipelines under operating pressure.
The type 550A is manufactured in accordance with DIN 11869 (formerly DIN 3237). On request, versions in other materials and alloys are also available, e.g. 1.0619 (cast steel) or Alloy C22, according to your specification.
Flange connections:
Standardly, the sight glass is supplied with flange connections matching to counter flanges according to ASME B 16.5 Class 150 / 300 lbs. The design, strength calculations, and construction conform to the PED 2014/68/EU and the regulations AD 2000.
Gasket system:
The sealing is done via proven flat gaskets from leading manufacturers, including:
- Frenzelit novaphit® MST XP
- KlingerSil® C4400
- Garlock Gylon®
- PTFE (pure or modified)
- over 50 additional sealing materials available upon request
Optional protective coatings of the sight glass plate:
For increased thermal and chemical stresses, the sight glass plates can be equipped with the following protective layers:
- HALAR® coating
- FEP coating
- Mica protective disc
Additional equipment (factory integrable):
- Sight glass wiper type SGW (with wiper blades made of PTFE, silicone, or EPDM)
- Spraying devices for cleaning
- LED lights, optionally with ATEX approval for explosion-prone areas
